JP2018000150A - Growth water tank and growth unit - Google Patents

Growth water tank and growth unit Download PDF

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JP2018000150A
JP2018000150A JP2016134583A JP2016134583A JP2018000150A JP 2018000150 A JP2018000150 A JP 2018000150A JP 2016134583 A JP2016134583 A JP 2016134583A JP 2016134583 A JP2016134583 A JP 2016134583A JP 2018000150 A JP2018000150 A JP 2018000150A
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feed
water tank
detainment
breeding
wall
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宏朗 笠井
Hiroo Kasai
宏朗 笠井
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Kitasato Institute
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract

PROBLEM TO BE SOLVED: To accelerate raising of a periphyton such as juvenile sea cucumber by greatly increasing workability and adherence of feed.SOLUTION: A growth water tank 10 for growing a periphyton in fish culture has a structure in which a livestock feed detention part 15m where fed artificial livestock B feed is easily accumulated and a wall part 15n liked by juvenile organisms are adjacently arranged, and many pairs of the livestock feed detention part and the wall part are continuously provided.SELECTED DRAWING: Figure 2

Description

本発明は育成水槽、育成装置に関し、特に、ナマコ等の付着生物の養殖において、着底後に人工飼料だけを飼料として効果的な育成を可能にするとともに水産養殖業で重要な付着生物の育成に効果を有する水槽システムに用いて好適な技術に関する。   The present invention relates to a breeding aquarium and a breeding apparatus, and in particular, in the cultivation of attached organisms such as sea cucumbers, it is possible to effectively grow only artificial feed after the bottoming as well as to grow attached organisms important in aquaculture industry. The present invention relates to a technique suitable for use in an aquarium system having an effect.

種苗生産は、水産業において目的とする生物の生活史の中で、最も減耗の激しい期間に人工育成することによって、天然ではなしえない高い生残と生育とを達成するためにおこなわれる。生産された魚介類の種苗は、自然環境への放流や自然環境下での養殖に用いられる。   Seedling production is carried out in order to achieve high survival and growth that cannot be achieved in nature by artificially growing it during the most severe period in the life history of the target organism in the fishery industry. The seedlings of the seafood produced are used for release into the natural environment and aquaculture under the natural environment.

2000年代から、中国での需要の増加や単価の上昇を受け、全国的にナマコの漁獲量が上昇する影響を受け、ナマコの種苗放流に対するニーズは高まっている。ナマコ類で水産業上、最も重要で種苗生産の対象となる種は、マナマコ(Apostichopus japonicus)である。   Since the 2000s, demand for sea cucumber seedlings has been increasing due to the increase in catch of sea cucumbers nationwide in response to increasing demand and rising unit prices in China. Sea cucumber (Apostichopus japonicus) is the most important species of sea cucumber in the fishery industry and is the target of seed production.

従来、マナマコの種苗生産は、1949年に今井らが無色鞭毛虫を餌として稚ナマコまでの人工飼育に成功したことを始まりとして、様々な方法によるマナマコの種苗生産がおこなわれてきた。1990年代には、付着珪藻を餌として用いて、稚ナマコに変態させ、その後、付着珪藻板上で飼育するという方式を確立し、採卵後4〜5ヶ月で体長10mm以上の稚ナマコを10万個単位で生産することが可能になった(非特許文献1)。現在では、採卵後3〜5ヶ月で、体長20mm程度の稚ナマコを100万個以上の生産が可能となっている(非特許文献2)。   In the past, Manamako seedling production has been carried out in various ways, starting with the fact that Imai et al. Succeeded in artificial breeding up to juvenile sea cucumbers in 1949 by feeding colorless flagellates. In the 1990s, we established a method of transforming into juvenile sea cucumbers using adhering diatoms as bait, and then rearing them on the adherent diatom plates. It has become possible to produce individual units (Non-Patent Document 1). At present, it is possible to produce 1 million or more juvenile sea cucumbers with a body length of about 20 mm in 3 to 5 months after egg collection (Non-patent Document 2).

付着珪藻は、人工飼料に比べて、付着基質を兼ねるため常に摂餌可能な飼料であること、水質を悪化させないこと、給餌作業が必要ないこと等の利点があるが、水温、水質、日照量等も外部要因による影響を受け、量や構成種が生産毎に異なる。そのため、付着珪藻の量や質によって。稚ナマコの成長や生残が左右され、稚ナマコ種苗生産が不安定となる場合がある。そこで、付着珪藻のみを飼料とする飼育方法から。海藻粉末や配合飼料等の人工飼料を主体的あるいは補助的に使用する飼育方法が検討されてきた。   Adherent diatoms have the advantages of being a feed that can always be fed since they also serve as an adherent substrate, not deteriorating water quality, and eliminating the need for feeding, compared to artificial feed, but water temperature, water quality, and amount of sunlight. Etc. are also affected by external factors, and the quantity and constituent species differ from production to production. Therefore, depending on the quantity and quality of attached diatoms. The growth and survival of juvenile sea cucumbers are affected, and juvenile sea cucumber seedling production may become unstable. Therefore, from a breeding method that uses only attached diatoms as feed. Breeding methods in which artificial feed such as seaweed powder or mixed feed is used actively or auxiliaryly have been studied.

海藻粉末や配合飼料は、稚ナマコ飼料として適正な蛋白質含量(5〜10%)、必要なアミノ酸の含量、繊維質含量(〜8%)が検討され、栄養的には十分であるが、付着基質を持たないため、給餌方法に課題があることが明らかになっている(非特許文献3)。非特許文献3においては、飼育用水槽内での稚ナマコの生態を観察した結果として、水槽内において、稚ナマコは、ほとんどの時間帯において、水槽の壁に付着していることが明らかにされている。ここで、水槽に投餌した付着基質を持たない海藻粉末や配合飼料のほとんどすべては水槽の底部にたまることになる。ところが、稚ナマコは壁に付着することを好むため、摂餌機会が極めて限定されることになる。非特許文献3では、飼料を水でこねてゲル状にし、水槽の壁の部分に張った、網目状の布の網目部分に、餌が溜まる様に筆で投餌することによって、成長が改善することが報告されている。   Seaweed powder and blended feed are considered to be suitable for juvenile sea cucumber feed, but the protein content (5-10%), the necessary amino acid content, and the fiber content (-8%) are examined and are nutritionally sufficient, but adhere Since it does not have a substrate, it has become clear that there is a problem with the feeding method (Non-patent Document 3). In Non-Patent Document 3, as a result of observing the ecology of juvenile sea cucumbers in the rearing aquarium, it was clarified that the juvenile sea cucumbers adhered to the aquarium wall in most time zones. ing. Here, almost all of the seaweed powder and blended feed without adhering substrates fed to the aquarium accumulate at the bottom of the aquarium. However, juvenile sea cucumbers prefer to adhere to the wall, which greatly limits their feeding opportunities. According to Non-Patent Document 3, growth is improved by kneading the feed with water to form a gel, and then feeding it with a brush on the mesh part of a mesh cloth stretched on the wall of the tank. It has been reported to do.

特開平10−276607号公報JP-A-10-276607 特許第5705851号公報Japanese Patent No. 5705551

伊藤史郎;マナマコの人工大量生産技術の開発に関する研究、佐賀県栽培漁業センター研究報告、1994; 4: 1-87.Shiro Ito; Research on development of artificial mass production technology for sea cucumber, Research report on Saga Prefectural Cultivation and Fishery Center, 1994; 4: 1-87. 江口勝久;種苗生産技術の現状と課題、72-113ページ、「ナマコ漁業とその管理-資源・生産・市場」 廣田将仁、町口裕二編、水産総合研究センター叢書、恒星社厚生閣 2014.Katsuhisa Eguchi; Current Status and Challenges of Seedling Production Technology, pp. 72-113, “Sea cucumber fishery and its management-resources, production, and market” Masahito Hamada, Yuji Machiguchi, Series of Fisheries Research Center, Hoshiseisha Koseikaku 2014. Yamana Y, Hamano T, Niiyama H, Goshima S.; Feeding characteristics of juvenile Japanese sea cucumber Apostichopus japonicas (Stichopodudae) in a nursery culture tank. J. National Fish. Univ. 2008; 57: 9-20.Yamana Y, Hamano T, Niiyama H, Goshima S .; Feeding characteristics of juvenile Japanese sea cucumber Apostichopus japonicas (Stichopodudae) in a nursery culture tank. J. National Fish. Univ. 2008; 57: 9-20.

非特許文献3に記載の投餌方法は、小規模の試験で用いる場合には、有効な手段であるといえるが、種苗生産現場で大規模に展開するには作業性が悪く実用的でない。また、網目状の布の溝に溜まる餌の量では不十分なためか、彼らの投餌方法では減耗率が高い。   The feeding method described in Non-Patent Document 3 can be said to be an effective means when used in a small-scale test, but is not practical and practical to deploy on a large scale at a seedling production site. In addition, the rate of depletion is high in their feeding method, probably because the amount of bait that accumulates in the mesh cloth grooves is insufficient.

特許文献1では、こうした課題に対して、付着生物が摂餌できる場を増やし、残餌物を少なくして付着生物の生存率を低下させない養殖用人工餌料の給餌方法を提供する技術として、板状基板に養殖用固形状人工餌料を装填固定化してなる給餌板を、イケス内に設けられた仕切り板に取り付けることによって給餌する養殖用人工餌料の給餌方法と給餌板が開発されたが、当該技術はウニを対象とするものであり、ウニの摂餌が、ウニが静止できる位置に餌料があれば、その位置がイケスの底面でも垂直面でも関係ないことに基づく技術であり、ウニの摂餌行動はナマコのイケス内での摂餌行動とは大きく異なることから、稚ナマコの育成用には利用できない。   In Patent Document 1, as a technique for providing a method for feeding artificial feed for aquaculture that increases the number of places where attached organisms can feed, reduces the amount of residual food, and does not reduce the survival rate of attached organisms. A method for feeding artificial feed for aquaculture and a feeding plate have been developed by attaching a feeding plate formed by loading and fixing a solid artificial feed for aquaculture on a plate-like substrate to a partition plate provided in the IKES. The technology is aimed at sea urchins, and sea urchin feeding is based on the fact that if there is food in a position where the sea urchin can rest, the position is not related to the bottom or vertical plane of the ikesu. Since feeding behavior is very different from feeding behavior in sea cucumber ikesu, it cannot be used for raising sea cucumbers.

また、特許文献2では、天然ナマコを養殖するための飼育バスケットを多数層に密集させることによって大量生産が可能であるとともに、酸素供給と餌供給などの生育環境を最適化することによって養殖効率を極大化できるナマコ養殖飼育機について開示されているが、飼育機の製作などに手間がかかる上に運転においても酸素の供給などを調節する必要があり、設置のための初期投資額の大きさや運転の複雑さの課題が残っている。また、この装置を実際に長期間運転した場合のナマコの成長や生残率の情報が開示されていない。   In Patent Document 2, mass production is possible by concentrating a large number of breeding baskets for cultivating natural sea cucumbers, and aquaculture efficiency is improved by optimizing the growth environment such as oxygen supply and feed supply. Although sea cucumber aquaculture machines that can be maximized are disclosed, it takes time to produce breeding machines, and it is necessary to adjust the oxygen supply during operation, so the amount of initial investment for installation and operation The challenge of complexity remains. In addition, information on sea cucumber growth and survival rate when this apparatus is actually operated for a long period of time is not disclosed.

これら装置や投餌方法では、上述した問題に加えて、設置のための初期投資額の大きさや運転の複雑さの課題が残っている。また、これらの装置を実際に長期間運転した場合のナマコの成長や生残率の情報が開示されていない。そこで、本発明の目的は、これらの問題及び他の問題点に対処することにある。   In these devices and feeding methods, in addition to the above-mentioned problems, there remain problems of the size of initial investment for installation and the complexity of operation. In addition, information on sea cucumber growth and survival rate when these devices are actually operated for a long period of time is not disclosed. The object of the present invention is therefore to address these and other problems.

そこで、本発明は、従来、着底後のナマコ種苗の育成に必須とされてきた付着珪藻を用いることなしに配合飼料だけでの飼育を可能とするとともに、人工飼料の摂餌機会が向上するような構造を育成水槽に敷設することによって、作業性及び餌の固着性を飛躍的に高めることを目的とする。   Therefore, the present invention enables the breeding with only the mixed feed without using the attached diatom, which has been essential for the growth of sea cucumber seedlings after the bottoming, and improves the feeding opportunity of the artificial feed. By laying such a structure in a breeding water tank, it aims at improving workability | operativity and the adhesivity of a bait | feeding dramatically.

本発明の育成水槽は、水産養殖において付着生物の育成をおこなう育成水槽であって、
投餌した人工飼料が溜まりやすい飼料留置部と、稚生物が好む壁部と、が隣接して配置されるとともに、これら飼料留置部と壁部とが連続的に多数組設けられた構造を有してなることにより上記課題を解決した。
本発明の育成水槽は、前記飼料留置部と前記壁部とが交互に隣接して配置されることができる。
本発明の育成水槽は、前記飼料留置部と前記壁部とが略直線状に配置されることができる。
本発明の育成水槽は、略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽の長辺と平行に配置されることができる。
本発明の育成水槽は、前記飼料留置部と前記壁部との境界が滑らかな湾曲部として形成されていることができる。
本発明の育成水槽は、略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽内部に、尾根線と谷線とが前記水槽の長辺と平行となるようにして前記長辺となる内壁面から底面に沿って湾曲した波板を配置して形成されたことができる。
本発明の育成水槽は、前記飼料留置部と前記壁部とが同心状に配置された略円環状に形成されることができる。
本発明の育成水槽は、前記飼料留置部の周囲を囲むように前記壁部が配置されることができる。
本発明の育成水槽は、前記飼料留置部の周囲を囲むように前記壁部が配置され、これらの前記飼料留置部と前記壁部とが、所定距離離間して多数設けられることができる。
本発明の育成水槽は、前記飼料留置部には、排水穴が設けられることができる。
本発明の育成装置は、上記のいずれか記載の育成水槽と、該水槽に給水する給水手段と、前記水槽から排水する排水手段と、を有することができる。
The breeding tank of the present invention is a breeding tank that grows attached organisms in aquaculture,
There is a structure in which a feed detainment part where the fed artificial feed tends to accumulate and a wall part that is favored by juveniles are arranged adjacent to each other, and a large number of these feed detention parts and wall parts are continuously provided. Thus, the above-mentioned problems were solved.
In the breeding water tank of the present invention, the feed detainment part and the wall part can be alternately arranged adjacent to each other.
In the breeding water tank of the present invention, the feed detainment part and the wall part can be arranged substantially linearly.
In the breeding water tank of the present invention, the substantially straight feed detainment part and the wall part can be arranged parallel to the long side of the water tank that is rectangular in plan view.
The breeding water tank of the present invention can be formed as a curved portion where the boundary between the feed detainment portion and the wall portion is smooth.
In the breeding aquarium of the present invention, the substantially straight feed detainment part and the wall part are rectangular in a plan view, and the ridge line and the valley line are parallel to the long side of the aquarium. In this way, the corrugated plate curved along the bottom surface from the inner wall surface which is the long side can be disposed.
The breeding water tank of the present invention can be formed in a substantially annular shape in which the feed detainment part and the wall part are arranged concentrically.
In the breeding water tank of the present invention, the wall portion can be arranged so as to surround the periphery of the feed detainment portion.
In the breeding water tank of the present invention, the wall portion is disposed so as to surround the periphery of the feed detainment portion, and a large number of these feed detention portions and the wall portions can be provided with a predetermined distance therebetween.
In the breeding water tank of the present invention, a drainage hole may be provided in the feed detainment unit.
The growing apparatus of the present invention can include any one of the above-described growing water tanks, water supply means for supplying water to the water tank, and draining means for discharging water from the water tank.

本発明の育成水槽は、水産養殖において付着生物の育成をおこなう育成水槽であって、
投餌した人工飼料が溜まりやすい飼料留置部(底部頂部段部)と、稚生物が好む壁部と、が隣接して配置されるとともに、これら飼料留置部と壁部とが連続的に多数組設けられた構造を有してなることにより、水平に近い面を有する飼料留置部付近において餌の固着度合いを向上するとともに、この人工飼料の載置された飼料留置部と付着生物の好む壁部との距離を短縮して摂餌機会を増大させ、付着生物の成長を促進するとともに、飼料留置部に対する飼料の供給を簡便におこなうことができるため、付着生物の育成における作業性及び餌の固着性を向上することが可能となる。
The breeding tank of the present invention is a breeding tank that grows attached organisms in aquaculture,
The feed detainment part (bottom top step part) where the artificial feed that has been fed easily accumulates and the wall part preferred by juveniles are arranged adjacent to each other, and a large number of these feed detainment parts and wall parts are continuously assembled. By having the provided structure, it is possible to improve the degree of fixation of the feed in the vicinity of the feed detainment portion having a nearly horizontal surface, and the wall detention portion on which this artificial feed is placed and the wall portion preferred by the attached organism The distance between the two and the feeding opportunity is increased, the growth of attached organisms is promoted, and the feed can be easily supplied to the feed detention unit. It becomes possible to improve the property.

本発明の育成水槽は、前記飼料留置部と前記壁部とが交互に隣接して配置されることにより、付着生物の好む壁部と人工飼料の載置された飼料留置部との距離を短縮して摂餌機会を増大させて付着生物の成長を促進するとともに、同一体積の水槽における摂餌機会の増大される付着生物数を増やして、成長促進される付着生物数を増加することが可能となる。   The breeding water tank of the present invention shortens the distance between the wall portion preferred by the attached organism and the feed detainment portion on which the artificial feed is placed, by arranging the feed detention portions and the wall portions alternately adjacent to each other. Can increase the number of attached organisms whose growth is promoted by increasing the number of attached organisms with increased feeding opportunities in the same volume of aquarium. It becomes.

本発明の育成水槽は、前記飼料留置部と前記壁部とが略直線状に配置されることにより、矩形の水槽に対して効率的に前記飼料留置部と前記壁部との密度を増加させて、同一体積の水槽における摂餌機会の増大される付着生物数を増やして、成長促進される付着生物数を増加することができる。   The breeding aquarium of the present invention increases the density of the feed detention part and the wall part efficiently with respect to a rectangular aquarium by arranging the feed detention part and the wall part in a substantially straight line. Thus, it is possible to increase the number of attached organisms whose growth is promoted by increasing the number of attached organisms whose feeding opportunities are increased in the same volume of water tank.

本発明の育成水槽は、略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽の長辺と平行に配置されることにより、単純な構造で矩形の水槽に対して効率的に前記飼料留置部と前記壁部との密度を増加させて、同一体積の水槽における摂餌機会の増大される付着生物数を増やして、成長促進される付着生物数を増加することができるとともに、水槽の清掃等の作業効率を向上することが可能となる。   The breeding aquarium of the present invention is a rectangular aquarium with a simple structure by arranging the substantially straight feed detainment portion and the wall portion in parallel with the long side of the aquarium that is rectangular in plan view. In contrast, the density of the feed detainment part and the wall part can be increased efficiently to increase the number of attached organisms that increase feeding opportunities in the same volume of aquarium and increase the number of attached organisms that are promoted for growth. In addition, it is possible to improve work efficiency such as cleaning the water tank.

本発明の育成水槽は、前記飼料留置部と前記壁部との境界が滑らかな湾曲部として形成されていることにより、付着生物の好む壁部と人工飼料の載置された飼料留置部との間で付着生物の行き来を容易にして摂餌機会を増大させることができ、付着生物の成長を促進することができる。   The breeding water tank of the present invention has a boundary between the feed detainment portion and the wall portion formed as a smooth curved portion, so that the wall portion preferred by the attached organism and the feed detention portion on which the artificial feed is placed It is possible to facilitate the passage of attached organisms between them, increase the feeding opportunity, and promote the growth of attached organisms.

本発明の育成水槽は、略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽内部に、尾根線と谷線とが前記水槽の長辺と平行となるようにして前記長辺となる内壁面から底面に沿って湾曲した波板を配置して形成されたことにより、波板を既存の水槽にU字状に湾曲して配置するだけで、波板の凹部と凸部とを前記飼料留置部と前記壁部として、これら前記飼料留置部と前記壁部とが交互に隣接して多数配置される構造を簡単に実現し、容易に付着生物の成長や生残率を控除することができる。   In the breeding aquarium of the present invention, the substantially straight feed detainment part and the wall part are rectangular in a plan view, and the ridge line and the valley line are parallel to the long side of the aquarium. In this way, the corrugated sheet is formed by arranging the corrugated sheet curved along the bottom surface from the inner wall surface which is the long side. By using the concave and convex portions as the feed detainment portion and the wall portion, a structure in which a large number of the feed detention portions and the wall portions are alternately arranged adjacent to each other can be easily realized, and the attached organism can easily grow. And the survival rate can be deducted.

本発明の育成水槽は、前記飼料留置部と前記壁部とが同心状に配置された略円環状に形成されることにより、平面視して円形の水槽において、略円環状の前記飼料留置部と前記壁部とが交互に隣接して配置されることにより、付着生物の好む壁部と人工飼料の載置された飼料留置部との距離を短縮して摂餌機会を増大させて付着生物の成長を促進することができる。   The breeding aquarium of the present invention is formed in a substantially annular shape in which the feed detainment portion and the wall portion are concentrically arranged, whereby the feed detention portion having a substantially annular shape in a circular aquarium in plan view. And the wall portion are alternately arranged adjacent to each other, thereby shortening the distance between the wall portion preferred by the attached organism and the feed detainment portion on which the artificial feed is placed, thereby increasing the feeding opportunity, and the attached organism. Can promote growth.

本発明の育成水槽は、前記飼料留置部の周囲を囲むように前記壁部が配置されることにより、単位面積当たりにおける前記飼料留置部と前記壁部との境界の長さを増大して、付着生物の好む壁部と人工飼料の載置された飼料留置部との間で付着生物の行き来を容易にして摂餌機会を増大させるとともに、前記飼料留置部への供給飼料に対する前記壁部での付着生物数を増大させることができ、付着生物の成長を促進することができる。   The breeding water tank of the present invention increases the length of the boundary between the feed detainment part and the wall part per unit area by arranging the wall part so as to surround the periphery of the feed detention part, While facilitating the feeding of adhering organisms between the wall portion preferred by the adhering organism and the feed detainment portion on which the artificial feed is placed, the wall portion for the feed to be fed to the feed detention portion is increased. The number of attached organisms can be increased, and the growth of attached organisms can be promoted.

本発明の育成水槽は、前記飼料留置部の周囲を囲むように前記壁部が配置され、これらの前記飼料留置部と前記壁部とが、所定距離離間して多数設けられることにより、単位面積当たりにおける前記飼料留置部と前記壁部との境界線配置を増大して、付着生物の好む壁部と人工飼料の載置された飼料留置部との間で付着生物の行き来を容易にして摂餌機会を増大させて付着生物の成長を促進するとともに、前記飼料留置部とその周囲を囲む前記壁部との組以外の部分での清掃等に対し、清掃等の作業効率を向上することを可能とすることができる。   In the breeding water tank of the present invention, the wall portion is disposed so as to surround the periphery of the feed detainment portion, and a large number of the feed detention portions and the wall portions are provided at a predetermined distance, thereby providing a unit area. The boundary line arrangement between the feed detainment part and the wall part in the hitting is increased so that the adhering organisms can easily move between the wall part preferred by the adhering organisms and the feed detention part on which the artificial feed is placed. To increase the feeding opportunity and promote the growth of attached organisms, and to improve the work efficiency of cleaning, etc., for cleaning other than the set of the feed detainment part and the wall part surrounding it Can be possible.

本発明の育成水槽は、前記飼料留置部には、排水穴が設けられることにより、より下側位置になる前記飼料留置部、あるいは、底部近傍に位置する前記飼料留置部に排水穴が設けられることにより、水槽の清掃を効率的におこなうことが可能となる。   In the breeding water tank of the present invention, the feed detainer is provided with a drainage hole, or the drainage hole is provided in the feed detainment unit located at a lower position or in the feed detainment unit located near the bottom. Thus, it becomes possible to efficiently clean the water tank.

本発明の育成装置は、上記のいずれか記載の育成水槽と、該水槽に給水する給水手段と、前記水槽から排水する排水手段と、を有することにより、付着生物の成長を促進でき、付着生物の育成における作業性及び餌の固着性の向上を図ることのできる育成装置を提供することが可能となる。   The growing apparatus of the present invention can promote the growth of attached organisms by having the growing water tank described in any of the above, a water supply means for supplying water to the water tank, and a drainage means for draining from the water tank. It is possible to provide a breeding apparatus capable of improving the workability and the fastness of food in the breeding.

本発明によれば、付着珪藻を用いることなしに配合飼料だけでの飼育を可能とするとともに、稚ナマコ等の付着生物の生態に適合した人工飼料の投餌方法において、作業性及び餌の固着性を飛躍的に高めた稚ナマコ等の付着生物育成可能な育成水槽、育成装置を提供することができるという効果を奏することが可能となる。   According to the present invention, in the method of feeding an artificial feed that is capable of breeding only with a mixed feed without using attached diatoms and that is suitable for the ecology of attached organisms such as juvenile sea cucumber, workability and fixing of the feed It is possible to provide an effect that it is possible to provide a cultivating aquarium and a cultivating apparatus capable of cultivating attached organisms such as juvenile sea cucumbers having dramatically improved properties.

本発明に係る育成装置の第1実施形態を示す斜視図である。It is a perspective view showing a 1st embodiment of a breeding device concerning the present invention. 本発明に係る育成装置の第1実施形態における育成水槽を示す斜視図である。It is a perspective view which shows the breeding water tank in 1st Embodiment of the breeding apparatus which concerns on this invention. 本発明に係る育成装置の第1実施形態における育成水槽を示す平面図である。It is a top view which shows the breeding water tank in 1st Embodiment of the breeding apparatus which concerns on this invention. 本発明に係る育成装置の第1実施形態における育成水槽を示す正面図である。It is a front view which shows the breeding water tank in 1st Embodiment of the breeding apparatus which concerns on this invention. 本発明に係る育成装置の第1実施形態における育成水槽を示す側面図である。It is a side view which shows the breeding water tank in 1st Embodiment of the breeding apparatus which concerns on this invention. 本発明に係る育成装置の第1実施形態における育成水槽における飼料留置部と壁部とを示す断面図である。It is sectional drawing which shows the feed detainment part and wall part in the breeding water tank in 1st Embodiment of the breeding apparatus which concerns on this invention. 本発明に係る育成装置の第1実施形態における育成水槽における育成状態を示す模式図である。It is a mimetic diagram showing the breeding state in the breeding water tank in a 1st embodiment of the breeding device concerning the present invention. 従来の育成水槽における育成状態を示す模式図である。It is a schematic diagram which shows the breeding state in the conventional breeding water tank. 本発明に係る育成装置の第2実施形態を示す斜視図である。It is a perspective view which shows 2nd Embodiment of the breeding apparatus which concerns on this invention.

以下、本発明に係る育成装置の第1実施形態を、図面に基づいて説明する。
図1は、本実施形態における育成装置を示す斜視図であり、図2は、本実施形態における育成水槽を示す斜視図であり、図3は、本実施形態における育成水槽を示す平面図であり、図4は、本実施形態における育成水槽を示す正面図であり、図5は、本実施形態における育成水槽を示す側面図であり、図において、符号10は、育成装置である。
Hereinafter, a 1st embodiment of the breeding device concerning the present invention is described based on a drawing.
FIG. 1 is a perspective view showing a growing apparatus in the present embodiment, FIG. 2 is a perspective view showing a growing water tank in the present embodiment, and FIG. 3 is a plan view showing the growing water tank in the present embodiment. FIG. 4 is a front view showing the growing water tank in the present embodiment, FIG. 5 is a side view showing the growing water tank in the present embodiment, and reference numeral 10 in the figure denotes a growing apparatus.

本実施形態に係る育成装置1は、付着生物、特に、体重10mg〜5g程度の稚ナマコを人工飼料によって育成可能とするものとされ、図1に示すように、外箱部2と、外箱部2に載置される複数の育成水槽10と、育成水槽10に海水を給水して注水する給水手段3と、外箱部2から排水する排水手段4と、を有する。   The growing apparatus 1 according to the present embodiment is capable of growing an attached organism, particularly a juvenile sea cucumber having a weight of about 10 mg to 5 g, using an artificial feed. As shown in FIG. A plurality of cultivating water tanks 10 placed on the part 2, a water supply means 3 for supplying seawater to the cultivating water tanks 10 and pouring the water, and a draining means 4 for draining from the outer box part 2.

本実施形態の育成装置1における飼育対象はナマコ類であり、ナマコ類で日本国内での水産業上、最も重要で種苗生産の対象となる種は、マナマコ(Apostichopus japonicus)である。また、アジアや中南米では、クロナマコ科やシカクナマコ科に属する熱帯や亜熱帯種が主要な漁獲対象となり、これらも飼育対象とすることができる。   The breeding target in the breeding apparatus 1 of the present embodiment is a sea cucumber, and the sea cucumber (Apostichopus japonicus) is the most important species in the fishery industry in Japan and the target of seedling production. In Asia and Central and South America, tropical and subtropical species belonging to the family Clanidae and Cerambycidae are the main catches, which can also be raised.

外箱部2は、図1に示すように、略矩形の平面形状を有して上側が開口されており、その内部に複数の育成水槽10を平面的に載置可能な容量・床面積を有している。また、複数の育成水槽10における水位を制御可能なように、その側壁部2aの高さ寸法を設定される。また、複数の育成水槽10の水位が所定の水深となるように、側壁部2aに排水口2bが設けられている。排水口2bは、複数の育成水槽10からの排水をまとめて排水可能とされている。   As shown in FIG. 1, the outer box portion 2 has a substantially rectangular planar shape and is open on the upper side, and has a capacity and floor area on which a plurality of breeding water tanks 10 can be placed planarly. Have. Moreover, the height dimension of the side wall part 2a is set so that the water level in the some breeding water tank 10 can be controlled. Moreover, the drain port 2b is provided in the side wall part 2a so that the water level of the some breeding water tank 10 may become predetermined | prescribed water depth. The drainage port 2b is configured to collect the drainage from the plurality of cultivating water tanks 10 together.

給水手段3は、図1に示すように、海水を注水する複数の給水管3aが設けられ、各育成水槽10にそれぞれ個別に海水を注水可能とされている。また、給水手段3は、育成水槽10に供給する海水の流量・温度・水質等を稚ナマコの育成用として調整可能なように構成されている。給水手段3の給水端部3aは、それぞれの育成水槽10上側位置に設けられて、個々の育成水槽10にそれぞれ調整された海水を別々に給水可能となっている。   As shown in FIG. 1, the water supply means 3 is provided with a plurality of water supply pipes 3 a for injecting seawater, and seawater can be individually injected into each breeding water tank 10. Moreover, the water supply means 3 is comprised so that the flow volume, temperature, water quality, etc. of the seawater supplied to the breeding water tank 10 can be adjusted for the growth of juvenile sea cucumber. The water supply end portion 3a of the water supply means 3 is provided at the upper position of each of the cultivating water tanks 10 so that the seawater adjusted to each of the cultivating water tanks 10 can be supplied separately.

排水手段4は、図1に示すように、外箱部2内部の育成水を排水口2bから排水するものとされ、排水された育成水を外部に排出するか、給水手段3へと循環再生することができる。排水された育成水を給水手段3へと循環再生する場合には、排水手段4は、排水のろ過・浄化等の水質調整をおこなうこともできる。   As shown in FIG. 1, the drainage means 4 drains the cultivated water inside the outer box portion 2 from the drain outlet 2 b, and drains the drained cultivated water to the outside or circulates and regenerates it to the water supply means 3. can do. In the case where the drained cultivating water is circulated and regenerated to the water supply means 3, the drainage means 4 can also perform water quality adjustment such as drainage filtration and purification.

本実施形態に係る育成水槽10は、図2〜図5に示すように、略矩形の平面形状とされた底部11を有し、X方向に対向している一対の側壁12,12が上方向(Z方向)に向けてやや拡径するとともに、他方のY方向に対向する一対の側壁13,13が上方向(Z方向)に向けてやや拡径するよう構成されている。
外箱部2および育成水槽10は、軽量かつ強固であって耐水性に優れた材質、例えばポリカーボネート、ポリスチレン、ポリ塩化ビニル、ポリエチレン、ボリプロピレン等により形成されることができる。
As shown in FIGS. 2 to 5, the cultivating water tank 10 according to the present embodiment has a bottom portion 11 having a substantially rectangular planar shape, and a pair of side walls 12 and 12 facing in the X direction are upward. The diameter of the pair of side walls 13 and 13 facing the other Y direction is slightly increased toward the upper direction (Z direction).
The outer box part 2 and the cultivating water tank 10 can be made of a material that is lightweight and strong and has excellent water resistance, such as polycarbonate, polystyrene, polyvinyl chloride, polyethylene, polypropylene, and the like.

これら側壁12,12および/または側壁13,13は、いずれも、鉛直方向に延在するように構成することもできる。側壁12,12は、Y方向に延在して育成水槽10の長辺とされており、側壁13,13は、X方向に延在して育成水槽10の短辺とされている。   These side walls 12, 12 and / or the side walls 13, 13 can all be configured to extend in the vertical direction. The side walls 12, 12 extend in the Y direction to be the long side of the growing water tank 10, and the side walls 13, 13 extend in the X direction to be the short side of the growing water tank 10.

底部11の四隅には、所定の径寸法の排水口11aが設けられ、この排水口11aには、稚ナマコが流出しないように、所定の目合いとされた網部が設けられている。網部としては、ポリエチレン製のネットなどが用いられる。
育成水槽10にはその内部に、一方の側壁12から底部11を介して他方の側壁12まで、これらの面に沿って波板15が設けられている。なお、図3,図5においては、山線15aのみを図示している。
At the four corners of the bottom portion 11, drainage ports 11a having a predetermined diameter are provided. The drainage port 11a is provided with a mesh portion having a predetermined size so that the juvenile sea cucumber does not flow out. A polyethylene net or the like is used as the net part.
The cultivating water tank 10 is provided with corrugated plates 15 along these surfaces from one side wall 12 to the other side wall 12 through the bottom 11. 3 and 5, only the mountain line 15a is shown.

波板15は、所定の振幅を持って横断面で蛇行形状を呈するものとされ、波板15の突条における山線15aと凹条となる谷線15bとが、育成水槽10の長辺方向であるY方向に延在するように配置されている。山線15aは、育成水槽10の上向き中心側に位置するとともに、谷線15bは、側壁12または底部11に対向するように位置することになる。   The corrugated plate 15 has a meandering shape in a cross section with a predetermined amplitude, and the ridges 15 a of the ridges of the corrugated plate 15 and the troughs 15 b that become concave ridges are in the long side direction of the cultivating water tank 10. It is arranged so as to extend in the Y direction. The mountain line 15 a is positioned on the upward center side of the breeding water tank 10, and the valley line 15 b is positioned so as to face the side wall 12 or the bottom part 11.

波板15において、平面視した山線15aの間隔または谷線15bの間隔、および、隣接する山線15aと谷線15bとの波板15厚み方向における距離(振幅)は、後述する飼料留置部15mおよび壁部15nとしての機能に即して設定されることが好ましい。
具体的には、平面視した山線15aの間隔または谷線15bの間隔が、育成対象となる稚ナマコの体長に対して、0.25倍から5倍程度とされることが好ましく、さらに、稚ナマコの体長に対して、0.5倍から2倍程度とされることがより好ましい。また、隣接する山線15aと谷線15bとの波板15厚み方向における距離(振幅)は、育成対象となる稚ナマコの体長に対して、0.1倍から同等程度とされることが好ましく、より好ましくは、稚ナマコの体長に対して、0.2倍から0.5倍程度とされることができる。
In the corrugated sheet 15, the distance between the mountain lines 15a or the valley lines 15b in plan view, and the distance (amplitude) in the thickness direction of the corrugated sheet 15 between the adjacent mountain lines 15a and valley lines 15b It is preferable to set according to the function as 15m and wall part 15n.
Specifically, the interval between the mountain lines 15a or the interval between the valley lines 15b in plan view is preferably about 0.25 to 5 times the body length of the juvenile sea cucumber to be cultivated, More preferably, it is about 0.5 to 2 times the body length of the juvenile sea cucumber. Moreover, it is preferable that the distance (amplitude) in the thickness direction of the corrugated sheet 15 between the adjacent mountain line 15a and the valley line 15b is set to about 0.1 to about the body length of the juvenile sea cucumber to be grown More preferably, it can be about 0.2 to 0.5 times the body length of the juvenile sea cucumber.

波板15は、一方の側壁12から底部11を介して他方の側壁12までの面に沿ってU字状となるように配置されて、谷線15b側が側壁12または底部11に接触するように設けられることもできる。波板15の湾曲は、その湾曲状態を深さ比(設置する水槽の深さ)/(設置する水槽の短辺)で表した場合、この深さ比の値が0.5から2程度の範囲に設定されることが好ましく、より好ましくは、0.8から1.2程度の範囲に設置されることができる。   The corrugated plate 15 is arranged so as to be U-shaped along the surface from one side wall 12 to the other side wall 12 through the bottom 11 so that the valley line 15b side contacts the side wall 12 or the bottom 11. It can also be provided. The curvature of the corrugated plate 15 is expressed by a depth ratio (depth of the water tank to be installed) / (short side of the water tank to be installed). It is preferable to be set in the range, and more preferably, it can be set in the range of about 0.8 to 1.2.

さらに、上記の深さ比(設置する水槽の深さ)/(設置する水槽の短辺)が上述の範囲とされた状態で、平面状に伸ばした波板15のU字状となる湾曲辺の長さが、湾曲比(波板15の湾曲辺長さ)/(設置する水槽の短辺)の値が1.5〜5の範囲に設置されることができ、より好ましくは、2.0から4程度の範囲に設置されることができる。
また、波板15は、側壁12と底部11との境界付近ではこれら側壁12または底部11に接触しないようになっている。
Furthermore, in the state where the above-mentioned depth ratio (depth of the water tank to be installed) / (short side of the water tank to be installed) is in the above range, the curved side that becomes the U-shape of the corrugated plate 15 extended in a planar shape Can be set in a range of 1.5 to 5 in terms of the bending ratio (curved side length of the corrugated sheet 15) / (short side of the water tank to be installed), more preferably 2. It can be installed in the range of about 0 to 4.
Further, the corrugated plate 15 is not in contact with the side wall 12 or the bottom portion 11 in the vicinity of the boundary between the side wall 12 and the bottom portion 11.

波板15においては、横断面が蛇行形状とされているために、図2,図6に示すように、水平面に沿って延在する帯状の領域15mと、鉛直面に沿って延在する帯状の領域15nとが交互に配置されることになる。これらの領域15mと領域15nとは、いずれもY方向に延在するとともに、U字状となるように湾曲された波板15の位置によって山線15aおよび谷線15bから多少ずれた境界によって互いに隣接するように配置されている。   Since the corrugated plate 15 has a meandering cross section, as shown in FIGS. 2 and 6, a strip-shaped region 15m extending along the horizontal plane and a strip-shaped extending along the vertical plane. The regions 15n are alternately arranged. These regions 15m and 15n both extend in the Y direction, and are separated from each other by a boundary slightly deviated from the mountain line 15a and the valley line 15b depending on the position of the corrugated plate 15 curved to be U-shaped. It is arranged to be adjacent.

帯状の領域15mと領域15nとは、Y方向に延在する1本ずつが一組とされて、これらの組が、波板15の湾曲した主面にそって複数組配置されることになる。
帯状の領域15mと領域15nとは、これらの境界がなだらかに湾曲した状態で接続されている。
The band-shaped region 15m and the region 15n are one set each extending in the Y direction, and a plurality of these sets are arranged along the curved main surface of the corrugated plate 15. .
The belt-like region 15m and the region 15n are connected in a state where their boundaries are gently curved.

波板15の最深底部位置となる領域15mには、所定の径寸法の排水穴15fを所定間隔に複数個、例えば2列として設け波板15の表側(上側)から裏側(下側)への排水孔とする。
排水穴15fの径寸法および配置間隔は、育成水槽10における水の循環が不良にならず、ナマコの生育に悪影響が及ばない状態を維持することが可能なように設定される。
A plurality of drain holes 15f having a predetermined diameter are provided at predetermined intervals, for example, in two rows, in the region 15m that is the deepest bottom position of the corrugated plate 15, from the front side (upper side) to the back side (lower side) of the corrugated plate 15. Use drain holes.
The diameter dimension and the arrangement interval of the drain holes 15f are set so that the circulation of water in the cultivating water tank 10 does not become defective and it is possible to maintain a state in which the growth of the sea cucumber is not adversely affected.

波板15は、育成水槽10と同様、軽量かつ強固であって耐水性に優れた材質、例えばポリカーボネート、ポリスチレン、ポリ塩化ビニル、ポリエチレン、ボリプロピレン等により形成されることができる。   The corrugated plate 15 can be formed of a material that is light and strong and has excellent water resistance, such as polycarbonate, polystyrene, polyvinyl chloride, polyethylene, polypropylene, and the like, similar to the cultivating water tank 10.

本実施形態における育成水槽10においては、図2,図6に示すように、水平面に沿って延在する帯状の領域15mが投餌した人工飼料Bが溜まりやすい飼料留置部とされ、鉛直面に沿って延在する帯状の領域15nが付着生物(稚ナマコ)Cの好む壁部とされており、これら帯状の飼料留置部15mと壁部15nとが交互に配置される組が、一方の側壁12から底部11を介して他方の側壁12までの面に沿ってU字状となるように多数配置されることになる。   In the breeding water tank 10 in this embodiment, as shown in FIG. 2 and FIG. 6, an artificial feed B fed by a band-like region 15 m extending along a horizontal plane is a feed detainment portion that is easy to collect, The band-like region 15n extending along the wall is a wall part preferred by the attached organism (chicken sea cucumber) C, and a group in which the band-like feed detainment part 15m and the wall part 15n are alternately arranged is one side wall. Many are arranged so as to be U-shaped along the surface from 12 to the other side wall 12 through the bottom 11.

ここで、ナマコは水槽の壁にはりついてしまうため、育成水槽10の長辺において、波板15が側壁12の上端位置、または育成水槽10における水位よりも上側に位置するようにもうけることが好ましい。   Here, since the sea cucumber sticks to the wall of the aquarium, it is preferable that the corrugated plate 15 be located at the upper end position of the side wall 12 or above the water level in the cultivating aquarium 10 on the long side of the cultivating aquarium 10. .

波板15の短辺側端部となる波板15と育成水槽15の短辺となる側壁13,13との合わせ面には、稚ナマコの流出を防ぐために隙間を塞ぐ閉塞材13aが波板15の全端側を覆うように設けられている。閉塞材13aは、発泡スチレンシートで構成することができる。   On the mating surfaces of the corrugated plate 15 that is the short side end of the corrugated plate 15 and the side walls 13 and 13 that are the short sides of the cultivating water tank 15, a blocking material 13a that closes the gap to prevent the juvenile sea cucumber from flowing out is corrugated. 15 is provided so as to cover the entire end side. The blocking material 13a can be composed of a foamed styrene sheet.

本実施形態における育成水槽10においては、図2,図6に示すように、投餌した人工飼料が溜まりやすい飼料留置部15mと、付着生物(稚ナマコ)が好む壁部15nと、が隣接して配置されるとともに、これら飼料留置部15mと壁部15nとが連続的に多数組設けられた構造を有してなる。これにより、本実施形態における育成水槽10においては、水平に近い面を有する飼料留置部15m付近において、育成水槽10の上方から給餌した餌(人工飼料)Bの固着度合いを向上することができる。   In the breeding aquarium 10 in this embodiment, as shown in FIGS. 2 and 6, a feed detainment portion 15 m where the fed artificial feed is likely to accumulate and a wall portion 15 n preferred by the attached organism (chickfish sea cucumber) are adjacent to each other. The feed detainment portion 15m and the wall portion 15n are continuously provided in a large number. Thereby, in the breeding aquarium 10 in this embodiment, the adhering degree of the feed (artificial feed) B fed from the upper part of the breeding aquarium 10 can be improved in the vicinity of the feed detainment part 15m which has a surface near horizontal.

同時に、本実施形態における育成水槽10においては、図2,図6に示すように、この人工飼料Bの載置された飼料留置部15mと稚ナマコCの好む壁部15nとの距離を短縮して摂餌機会を増大させ、稚ナマコCの成長を促進するとともに、飼料留置部15mに対する飼料Bの供給を簡便におこなうことができるため、ナマコCの育成における作業性及び餌の固着性を向上することが可能となる。   At the same time, in the breeding aquarium 10 in this embodiment, as shown in FIGS. 2 and 6, the distance between the feed detainment portion 15 m on which the artificial feed B is placed and the wall portion 15 n preferred by the juvenile sea cucumber C is shortened. This increases the feeding opportunity, promotes the growth of juvenile sea cucumber C, and allows easy supply of feed B to the feed detainment section 15m, thus improving workability and feeding fixation in sea cucumber C It becomes possible to do.

本実施形態における育成水槽10においては、飼料留置部15mの水平方向幅寸法は、育成対象となる稚ナマコの体長に対して、0.25倍から5倍程度とされることが好ましく、さらに、稚ナマコの体長に対して、0.5倍から2倍程度とされることがより好ましい。また、壁部15nの鉛直方向幅寸法は、育成対象となる稚ナマコの体長に対して、0.1倍等から同等程度とされることが好ましく、より好ましくは、稚ナマコの体長に対して、0.2倍から0.5倍程度とされることができる。   In the breeding water tank 10 in the present embodiment, the horizontal width dimension of the feed detainment portion 15m is preferably about 0.25 to 5 times the body length of the juvenile sea cucumber to be grown, More preferably, it is about 0.5 to 2 times the body length of the juvenile sea cucumber. Moreover, it is preferable that the vertical width dimension of the wall part 15n is set to about 0.1 time etc. with respect to the body length of the juvenile sea cucumber to be cultivated, and more preferably, with respect to the body length of the juvenile sea cucumber. , About 0.2 to 0.5 times.

また、飼料留置部15mの水平方向幅寸法と、壁部15nの鉛直方向幅寸法との比が、1.5〜2.5となって、壁部15nよりも飼料留置部15mの幅寸法が大きいことが好ましい。   Moreover, ratio of the horizontal direction width dimension of the feed detainment part 15m and the vertical direction width dimension of the wall part 15n becomes 1.5-2.5, and the width dimension of the feed detainment part 15m is more than the wall part 15n. Larger is preferred.

本実施形態における育成水槽10においては、図7に示すように、壁部15nと飼料留置部15mとの境界を多数設けることによって、投餌した人工飼料Bが溜まりやすい飼料留置部15mと稚ナマコCが好む壁部15nとが短い距離で連続的に繰り返される構造となって、稚ナマコCによる付着基質のない人工飼料Bの摂餌機会が増えるができるのに対し、従来の水槽では、図8に示すように、飼料が水槽底部のみにたまってしまい、稚ナマコCと人工飼料Bとの距離が大きくなり、摂餌機会を増加することができない。   In the breeding water tank 10 in the present embodiment, as shown in FIG. 7, by providing a large number of boundaries between the wall portion 15n and the feed detainment portion 15m, the feed detention portion 15m and the juvenile sea cucumber where the fed artificial feed B easily accumulates. The wall portion 15n preferred by C has a structure that is continuously repeated at a short distance, and the feeding opportunity of the artificial feed B without attached substrate by the juvenile sea cucumber C can be increased. As shown in FIG. 8, the feed accumulates only at the bottom of the aquarium, the distance between the juvenile sea cucumber C and the artificial feed B increases, and the feeding opportunity cannot be increased.

さらに、飼料留置部15mと壁部15nとの境界は、図6に示すように、滑らかに褶曲して連続的に飼料留置部15mと壁部15nとが配置されているため、稚ナマコCの生育環境である自然界における状態に近づけ、稚ナマコCが壁部15nから飼料留置部15mに移動しやすくして、摂餌機会を増大させ、さらに、稚ナマコCの成長を促進することができる。   Furthermore, as shown in FIG. 6, the boundary between the feed detainment part 15m and the wall part 15n is smoothly bent and continuously arranged with the feed detention part 15m and the wall part 15n. By bringing the juvenile sea cucumber C closer to the state in the natural environment as the growth environment, it is easy to move from the wall 15n to the feed detainment section 15m, increasing the feeding opportunity, and further promoting the growth of the juvenile sea cucumber C.

本実施形態における育成水槽10においては、図2,図6に示すように、滑らかに褶曲して連続的に飼料留置部15mと壁部15nとが配置された構成としたが、図7に示すように、水平面とされる飼料留置部15mと、垂直面とされる壁部15nと、からなる組を多数繰り返して水槽側壁13に設けることもできる。このように多数の段部15mを設けた構造の場合、飼料留置部15mにおける給餌した餌(人工飼料)Bの固着度合いをさらに向上することができるとともに、稚ナマコCの育成空間となる育成水槽10内部の容積を大きくすることができる。   In the cultivating water tank 10 in the present embodiment, as shown in FIGS. 2 and 6, the feed tank 15m and the wall portion 15n are arranged continuously and bent smoothly, as shown in FIG. In this way, a set of a feed detainment portion 15m that is a horizontal plane and a wall portion 15n that is a vertical plane can be repeatedly provided on the water tank side wall 13. In the case of such a structure provided with a number of steps 15m, the degree of fixation of the feed (artificial feed) B fed in the feed detainment 15m can be further improved, and a breeding aquarium serving as a breeding space for the juvenile sea cucumber C The volume inside 10 can be increased.

この場合、水平面とされる飼料留置部15mと、垂直面とされる壁部15nと、からなる組において、飼料留置部(段部)15mに対して、その上側に位置する壁部15nを稚ナマコCの摂餌場所として設定することができ、それぞれの稚ナマコCに対する摂餌を制御することが可能となる。   In this case, in a set comprising a feed detainment portion 15m that is a horizontal surface and a wall portion 15n that is a vertical surface, the wall portion 15n that is positioned above the feed detention portion (step portion) 15m. It can be set as a feeding place for the sea cucumber C, and feeding for each juvenile sea cucumber C can be controlled.

以下、本発明に係る育成水槽の第2実施形態を、図面に基づいて説明する。
図9は、本実施形態における育成水槽20を示す斜視図である。
本実施形態において上述した第1実施形態と異なるのは育成水槽20の平面形状および、飼料留置部25mと壁部25nとの配置に関する点であり、これ以外の対応する構成要素に関しては、同一の符号を付してその説明を省略する。
Hereinafter, 2nd Embodiment of the breeding water tank which concerns on this invention is described based on drawing.
FIG. 9 is a perspective view showing the breeding water tank 20 in the present embodiment.
This embodiment is different from the first embodiment described above in terms of the planar shape of the breeding water tank 20 and the arrangement of the feed detainment part 25m and the wall part 25n, and the other corresponding components are the same. Reference numerals are assigned and explanations thereof are omitted.

本実施形態においては、図9に示すように、育成水槽20が平面視して略円形の形状とされ、円環状の水平面とされた飼料留置部25mと、円環状の垂直面面とされた壁部25nとが、複数の段部を形成するように交互に設けられる。
飼料留置部25mと壁部25nとは、飼料留置部15mと壁部15nとに対応して、その幅寸法および高さ寸法を設定することができる。
最深底部位置となる底部21には、所定の径寸法の排水穴15fが所定数設けられている。
In the present embodiment, as shown in FIG. 9, the breeding water tank 20 has a substantially circular shape in plan view, and is a feed detainment portion 25m that is an annular horizontal surface, and an annular vertical surface. The wall portions 25n are alternately provided so as to form a plurality of step portions.
The feed detainment part 25m and the wall part 25n can set the width dimension and the height dimension corresponding to the feed detention part 15m and the wall part 15n.
A predetermined number of drain holes 15f having a predetermined diameter are provided in the bottom portion 21 which is the deepest bottom position.

本実施形態においては、上記の実施形態と同等の作用効果を奏することができるとともに、さらに、飼育面積を拡大し、収容個体数を増やすことが可能になり効率的な飼育が可能になるという効果を奏することができる。
なお、図示しないが、育成水槽20の外側表面には、内側で形成された段部がないように滑らかな曲面とすることもできる。また、飼料留置部25mと壁部25nとの境界において、滑らかに褶曲する構成とすることもできる。
In the present embodiment, it is possible to achieve the same effects as the above-described embodiment, and further, it is possible to expand the breeding area and increase the number of individuals accommodated, thereby enabling efficient breeding. Can be played.
In addition, although not shown in figure, it can also be set as a smooth curved surface so that the outer surface of the breeding water tank 20 may not have the step part formed inside. Moreover, it can also be set as the structure bent smoothly in the boundary of the feed detainment part 25m and the wall part 25n.

以下、本発明にかかる実施例を説明する。これらの実施例は本発明を制限するものではない。   Examples according to the present invention will be described below. These examples do not limit the invention.

<実験例1,2>
図1〜図6に示した第1実施形態と同様に、育成水槽10内部を階段状として飼料留置部15mと壁部15nとを形成した。
<Experimental Examples 1 and 2>
As in the first embodiment shown in FIGS. 1 to 6, the feed dwelling portion 15 m and the wall portion 15 n are formed in a stepped shape inside the breeding water tank 10.

育成水槽10として、図2〜図6に示すように、7L角型樹脂製水槽(26cm×16cm×深さ17cm)の底面の四隅に直径25mmの排水口11aを設ける。設けた排水口11aから稚ナマコCが流出しないように、目合い1mmのポリエチレンネットを接着し固定する。この育成水槽10の短辺方向から見て、U字状に樹脂製の波板15を設置する。その際、波板15の波方向(山線15aと谷線15bにより形成)が育成水槽10の長辺となる側壁12,12方向と平行になるように設置する。   As shown in FIGS. 2 to 6, as the cultivating water tank 10, drainage ports 11 a having a diameter of 25 mm are provided at the four corners of the bottom surface of the 7L square resin water tank (26 cm × 16 cm × depth 17 cm). A polyethylene net having a mesh size of 1 mm is adhered and fixed so that the juvenile sea cucumber C does not flow out from the provided drainage port 11a. A resin corrugated plate 15 is installed in a U shape when viewed from the short side direction of the cultivating water tank 10. At that time, the corrugated plate 15 is installed so that the wave direction (formed by the mountain line 15 a and the valley line 15 b) is parallel to the side walls 12, 12 which are the long sides of the breeding water tank 10.

波板15と育成水槽10の短辺の側壁13,13との合わせ面には、幅約20mmの発泡スチレンシートで隙間を塞ぐ閉塞材13aを設け、稚ナマコCの流出を防ぐ。U字型に設置した波板15の一番底になる部分に直径1.5mmの穴を5mm間隔に30個ずつ2列に計60個の排水穴15fを設ける。   On the mating surface between the corrugated plate 15 and the short side walls 13, 13 of the cultivating water tank 10, a blocking material 13 a that closes the gap with a foamed styrene sheet having a width of about 20 mm is provided to prevent the juvenile sea cucumber C from flowing out. A total of 60 drain holes 15f are provided in two rows of 30 holes each having a diameter of 1.5 mm at intervals of 5 mm in the bottom portion of the corrugated plate 15 installed in a U-shape.

樹脂製波板15をU字型に設置した育成水槽10を、図1に示すように、ポリエチレン製大型トロ箱(83×125×深さ20cm)からなる外箱部2内に設置する。外箱部2のサイズに合わせて、複数の育成水槽10を並列設置する。各育成水槽10に上面より注水された海水は、各育成水槽10の底面11に開けた排水口11aより外箱部2内に排水される。各育成水槽10の水位が水深12cm(容量5L)になるように、外箱部2に排水口2bを設ける。外箱部2の排水口2bからは、複数の育成水槽10からの排水が、まとめて排水される。   As shown in FIG. 1, the cultivating water tank 10 in which the resin corrugated plate 15 is installed in a U-shape is installed in the outer box portion 2 made of a large polyethylene trolley box (83 × 125 × depth 20 cm). A plurality of rearing water tanks 10 are installed in parallel according to the size of the outer box part 2. Seawater poured from the upper surface into each nurturing water tank 10 is drained into the outer box part 2 through a drain port 11 a opened at the bottom surface 11 of each nurturing water tank 10. A drain port 2b is provided in the outer box part 2 so that the water level of each nurturing water tank 10 becomes a water depth of 12 cm (capacity 5 L). Drainage from the plurality of nurturing water tanks 10 is collectively drained from the drainage port 2b of the outer box part 2.

各育成水槽10に稚ナマコ(湿重量:0.07〜0.48g、体長:17〜30mm)を10個体収容した。
市販の付着珪藻粉末(ダイアパウダー、マリンテック株式会社)と等量の貝殻粉末を乳鉢で微粉末化した後、混合して投餌した。投餌量は稚ナマコの総湿重量の10%とした。投餌した餌料の流出を防ぐために、投餌後20〜30分間は注水を止めた。海水の注水量は、0.5L/分とした。毎日夕方一回、水槽掃除の後に投餌した。水槽掃除は、毎日夕方に直径5 mmのシリコンチューブでサイフォンにより糞や残餌を吸引して行った。
Ten juvenile sea cucumbers (wet weight: 0.07 to 0.48 g, body length: 17 to 30 mm) were accommodated in each breeding water tank 10.
A commercially available adherent diatom powder (Dia Powder, Marine Tech Co., Ltd.) and an equivalent amount of shell powder were pulverized in a mortar, then mixed and fed. The amount of feeding was 10% of the total wet weight of the juvenile sea cucumber. Water injection was stopped for 20 to 30 minutes after feeding to prevent outflow of the fed food. The amount of seawater injected was 0.5 L / min. Feeded once a day in the evening after cleaning the aquarium. Water tank cleaning was performed by sucking feces and residual food by siphon with a silicon tube having a diameter of 5 mm every evening.

<実験例3,4>
上記試験の比較対照区として、図8に示すように、樹脂製波板を入れないという条件以外は、上記飼育方法と同じ条件で飼育を行った。
<Experimental Examples 3 and 4>
As a comparative control group for the above test, as shown in FIG. 8, the breeding was carried out under the same conditions as the breeding method except that the resin corrugated sheet was not inserted.

水槽を上から朝9時から17までの間、2時間ごとに定時撮影し、水槽による稚ナマコの行動を観察し、まとめたところ、図8に示す従来水槽中での稚ナマコは、水槽の壁に付着しており、当時した餌が存在する水槽の底にはほとんど存在しなかったのに対し、図2〜図6に示す樹脂製波板を設置した水槽では、半分以上の稚ナマコ個体が、餌のある波板上に存在していることがわかった。試験期間中に測定した10個体の平均体重を表1および表2に示した。
なお、表1に示した値をもとに増重率を算出し、表2に示した。計算式は、増重率(%)=(測定時の平均体重)/(試験開始時の平均体重)*100
From the top to the morning from 9:00 am to 17 in the morning, take a picture every 2 hours, observe the action of the juvenile sea cucumber in the water tank, put together, the juvenile sea cucumber in the conventional aquarium shown in FIG. It was attached to the wall and was hardly present at the bottom of the aquarium where food was present at the time, whereas in the aquarium with the resin corrugated plates shown in FIGS. Was found on a corrugated sheet with food. The average body weight of 10 individuals measured during the test period is shown in Tables 1 and 2.
The weight increase rate was calculated based on the values shown in Table 1 and shown in Table 2. Calculation formula is weight gain (%) = (average body weight at the time of measurement) / (average body weight at the start of the test) * 100

Figure 2018000150
Figure 2018000150
Figure 2018000150
Figure 2018000150

表2に示したとおり、本発明である樹脂製波板を設置した区が、樹脂製波板を設置していない区に比べ、明らかに大きな増重率を示している。これにより、作業性及び餌の固着性を飛躍的に高めて稚ナマコ等の付着生物の育成促進が可能であることがわかる。また、57日間の飼育試験期間中に死亡した個体はなかったことから、本方法は稚ナマコの育成において種苗生産産業上有用な効果をもたらすことが明らかとなった。   As shown in Table 2, the section in which the resin corrugated sheet according to the present invention is installed clearly shows a greater weight increase rate than the section in which the resin corrugated sheet is not installed. Thereby, it turns out that the workability | operativity and the adhering property of a feed are improved dramatically, and the growth promotion of adhering organisms, such as a juvenile sea cucumber, is possible. In addition, since no individual died during the 57-day breeding test period, it was revealed that this method has a useful effect on the seedling production industry in raising juvenile sea cucumber.

本発明の活用例として、種苗生産産業上、ナマコ以外のアワビ、ウニなどの他の水産養殖業で重要な付着生物の育成にも有効である。   As an application example of the present invention, it is effective for breeding attached organisms important in other aquaculture industries such as abalone and sea urchin other than sea cucumbers in the seedling production industry.

1…育成装置
2…外箱部
3…給水手段
4…排水手段
10…育成水槽
11…底部
11a…排水口
12,13…側壁
15…波板
15a…山線
15b…谷線
15f…排水穴
15m…飼料留置部(段部)
15n…壁部
B…飼料(餌)
C…稚ナマコ(付着生物)
20…育成水槽
21…底部
25m…飼料留置部(底部、頂部)
25n…壁部
DESCRIPTION OF SYMBOLS 1 ... Growing apparatus 2 ... Outer box part 3 ... Water supply means 4 ... Drainage means 10 ... Raising water tank 11 ... Bottom part 11a ... Drain port 12, 13 ... Side wall 15 ... Corrugated sheet 15a ... Mountain line 15b ... Valley line 15f ... Drain hole 15m ... Feed detainment (stage)
15n ... Wall B ... Feed
C ... Wicked sea cucumber (adherent organism)
20 ... Raising water tank 21 ... Bottom 25m ... Feed detainment part (bottom part, top part)
25n ... wall

Claims (11)

水産養殖において付着生物の育成をおこなう育成水槽であって、
投餌した人工飼料が溜まりやすい飼料留置部(底部頂部段部)と、稚生物が好む壁部と、が隣接して配置されるとともに、これら飼料留置部と壁部とが連続的に多数組設けられた構造を有してなることを特徴とする育成水槽。
A breeding aquarium for growing attached organisms in aquaculture,
The feed detainment part (bottom top step part) where the artificial feed that has been fed easily accumulates and the wall part preferred by juveniles are arranged adjacent to each other, and a large number of these feed detainment parts and wall parts are continuously assembled. A breeding water tank characterized by having a provided structure.
前記飼料留置部と前記壁部とが交互に隣接して配置されることを特徴とする請求項1記載の育成水槽。   The breeding water tank according to claim 1, wherein the feed detainment part and the wall part are alternately arranged adjacent to each other. 前記飼料留置部と前記壁部とが略直線状に配置されることを特徴とする請求項1または2記載の育成水槽。   The breeding water tank according to claim 1 or 2, wherein the feed detainment part and the wall part are arranged substantially linearly. 略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽の長辺と平行に配置されることを特徴とする請求項1から3のいずれか記載の育成水槽。   4. The breeding water tank according to claim 1, wherein the feed detainment part and the wall part that are substantially linear are arranged in parallel with a long side of the water tank that is rectangular in plan view. . 前記飼料留置部と前記壁部との境界が滑らかな湾曲部として形成されていることを特徴とする請求項1から4のいずれか記載の育成水槽。   The breeding water tank according to any one of claims 1 to 4, wherein a boundary between the feed detainment part and the wall part is formed as a smooth curved part. 略直線状の前記飼料留置部と前記壁部とが、平面視して矩形とされる水槽内部に、尾根線と谷線とが前記水槽の長辺と平行となるようにして前記長辺となる内壁面から底面に沿って湾曲した波板を配置して形成されたことを特徴とする請求項1から5のいずれか記載の育成水槽。   The feed detainment portion and the wall portion, which are substantially straight, are inside the aquarium that is rectangular in plan view, and the long side so that the ridge line and the valley line are parallel to the long side of the aquarium. The nurturing water tank according to any one of claims 1 to 5, wherein a corrugated plate curved from the inner wall surface along the bottom surface is disposed. 前記飼料留置部と前記壁部とが同心状に配置された略円環状に形成されることを特徴とする請求項1または2記載の育成水槽。   The breeding water tank according to claim 1 or 2, wherein the feed detainment part and the wall part are formed in a substantially annular shape arranged concentrically. 前記飼料留置部の周囲を囲むように前記壁部が配置されることを特徴とする請求項1または2記載の育成水槽。   The breeding water tank according to claim 1, wherein the wall portion is disposed so as to surround the periphery of the feed detainment portion. 前記飼料留置部の周囲を囲むように前記壁部が配置され、これらの前記飼料留置部と前記壁部とが、所定距離離間して多数設けられることを特徴とする請求項8記載の育成水槽。   The breeding water tank according to claim 8, wherein the wall portion is disposed so as to surround the periphery of the feed detainment portion, and a large number of the feed detention portions and the wall portions are provided with a predetermined distance therebetween. . 前記飼料留置部には、排水穴が設けられることを特徴とする請求項1から9のいずれか記載の育成水槽。   The breeding water tank according to any one of claims 1 to 9, wherein a drainage hole is provided in the feed detention unit. 請求項1から10のいずれか記載の育成水槽と、該水槽に給水する給水手段と、前記水槽から排水する排水手段と、を有することを特徴とする育成装置。


A growing apparatus comprising: the growing water tank according to claim 1; a water supply means for supplying water to the water tank; and a draining means for discharging water from the water tank.


JP2016134583A 2016-07-06 2016-07-06 Growth water tank and growth unit Pending JP2018000150A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108541634A (en) * 2018-03-30 2018-09-18 大连海洋大学 A kind of stichopus japonicus seed ginseng indoors artificial accelerating method
CN109548721A (en) * 2018-12-28 2019-04-02 苑春亭 A kind of later period pond breeding method of sea cucumber
CN111202016A (en) * 2020-03-10 2020-05-29 山东省海洋生物研究院 Semi-submersible type safe summer-spending device and method for stichopus japonicus pond culture
CN112369356A (en) * 2020-12-01 2021-02-19 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
CN114403071A (en) * 2022-01-27 2022-04-29 烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站) Waste collecting, recycling and regenerating system for cage culture of artificial stichopus japonicus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108541634A (en) * 2018-03-30 2018-09-18 大连海洋大学 A kind of stichopus japonicus seed ginseng indoors artificial accelerating method
CN109548721A (en) * 2018-12-28 2019-04-02 苑春亭 A kind of later period pond breeding method of sea cucumber
CN109548721B (en) * 2018-12-28 2021-03-12 苑春亭 Later-stage pond culture method for sea cucumbers
CN111202016A (en) * 2020-03-10 2020-05-29 山东省海洋生物研究院 Semi-submersible type safe summer-spending device and method for stichopus japonicus pond culture
CN112369356A (en) * 2020-12-01 2021-02-19 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
CN112369356B (en) * 2020-12-01 2023-02-24 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
CN114403071A (en) * 2022-01-27 2022-04-29 烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站) Waste collecting, recycling and regenerating system for cage culture of artificial stichopus japonicus

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