JP3520195B2 - Scallop intermediate breeding basket - Google Patents
Scallop intermediate breeding basketInfo
- Publication number
- JP3520195B2 JP3520195B2 JP06383698A JP6383698A JP3520195B2 JP 3520195 B2 JP3520195 B2 JP 3520195B2 JP 06383698 A JP06383698 A JP 06383698A JP 6383698 A JP6383698 A JP 6383698A JP 3520195 B2 JP3520195 B2 JP 3520195B2
- Authority
- JP
- Japan
- Prior art keywords
- knitted fabric
- square frame
- knitted
- length
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Bag Frames (AREA)
Description
【発明の詳細な説明】
【0001】
【産業上の利用分野】本発明は帆立稚貝を健苗に且高い
生産収率を以って育成しえる帆立貝の中間育成篭に関す
るものである。
【0002】
【従来技術】帆立貝は特有の風味に加え調理の多様性と
が相俟って近年においては膨大な消費がなされている
が、かかる背景としては天然採苗技術の確立と中間育成
及び本育成や放流増殖技術の向上が挙げられる。即ち帆
立貝は水温が6乃至8℃に上昇する3乃至4月頃に産卵
するが、この産卵後略40日程度の間浮遊幼生(ラー
バ)としてプランクトン生態をなしたる後足糸を分泌し
て付着するため、かかる生態を利用して付着基質所謂採
苗器を海中に設置して採苗を図ることが古くから研究さ
れ、今日に至っては天然採苗技術面の確立がなされてい
る。
【0003】しかしながら採苗器に付着した稚貝も、そ
の殻長が8乃至10mm程度に成長すると足糸の分泌能
が退化し海底へ落下するが、かかる状態の稚貝では捕食
魚介類に対する自己防衛能も不十分なうえ、更にこの時
期は水温の上昇下における低層の貧酸素水塊の発生や、
底質に対する選択性も未達なため、外的に捕食されたり
斃死して自然増殖効果も期待できない。
【0004】これがため採苗器に付着した稚貝を一旦採
取し、外敵からの保護と飼料プランクトンや溶存酸素を
十分に供給しえる浅海域で、健苗に且十分な自己防衛能
を保持させるための中間育成をなしたるうえ、更に本育
成所謂養殖や放流による増殖をなすことが必要となる。
【0005】ところで帆立稚貝の中間育成手段としては
多様な育成器具が使用されているが、中間育成には膨大
量の稚貝が取扱われるため育成器具が安価であることや
取扱性が至便であることは当然として、長期に亘る中間
育成に際して急潮や波浪に対抗しえること並びに育成中
に稚貝が逃散したり脱落せぬよう保持しえること、或い
はプランクトン類や溶存酸素の十分な供給と***物の排
出を促進しうる潮通しが良好なこと等の機能が要請され
る。
【0006】これがため現状における帆立稚貝の中間育
成篭としては図6に示す如く、所要面積で適宜ネット材
が張設された円形枠体Aを所要間隔に垂下展張されるよ
う該円形枠体Aのそれぞれを適宜の垂下綱Bを用いて等
間隔を以って結縛連結し、且適宜の綱地Cで周回包被さ
せて多数の区画Dを形成のうえ、それぞれの区画Dを縦
断して開裂する開口部Eを設けてなる丸篭や、四角形で
且中央に交差補強部Fを有する枠体Gに垂下綱Hを結縛
し、且該垂下綱Hの適宜上部に結節部Iを設けたうえ該
垂下綱Hの端部をそれぞれ上方及び下方に所要長さに延
出させたうえ、適宜の網地Jで枠体Gを包被させたうえ
その端縁を結節部Iで集束固定させて篭体Kを形成さ
せ、而して該篭体Kの適宜位置の網地Jを開裂させた開
口部Lを設けてなるパール篭を多数連結させるものが使
用されている。
【0007】然るに帆立稚貝の中間育成は一漁業者でも
区画された篭体換算で数千乃至数万篭を使用するばかり
か、育成期間中その殻長の成長に伴って3乃至4ヶ月毎
に育成密度を調整し過密育成を防止するための管理を施
す必要が生ずる。これがため膨大量に亘る稚貝を丸篭や
パール篭内にその開口部EやLより収納させたうえ、育
成期間中に該収納された稚貝が逃散したり脱落せぬよう
開口部の開裂した網地相互を、適宜の線条や紐等からな
る縫合線材Mで縫合閉塞させねばならず、且育成密度を
調整する度に該縫合閉塞させた縫合線材Mを切断して、
開口部E若しくはLより適宜数の貝を取出し育成密度を
調整のうえ再び縫合閉塞させて育成させることとなる。
従って現状の中間育成篭はその膨大量の使用に加えて開
口部の開口閉塞作業の至難さとが相俟って莫大な労力と
時間が強いられ、これにより中間育成に係る漁獲生産性
が著るしく制約されている実情にある。かかる問題を解
決する手段としてファスナーを用いて開口閉塞作業の簡
便化を図ることも試みられたが、中間育成がなされる浅
海域は動植物プランクトンを初め魚介類の幼生や稚仔、
或いは海草類や珪藻類等の胞子、遊走子、幼芽等が多量
に浮遊しており、これらがファスナー部内に挟入したり
付着する結果開閉機能が短時に損われるため、依然とし
てかかる問題の解決には至っていない。
【0008】
【発明が解決しようとする課題】本発明はかかる問題を
解決するためになされたものであって、本発明は中間育
成に際してその垂下展張に係る張力で収納口を形成する
編地相互を圧着するよう接合保持させて、帆立稚貝の逃
散や脱落を防止させるとともに収納時や取出時には、そ
の収納口を押し拡げるのみで簡便に作業のなしえる帆立
貝の中間育成篭を提供することにある。
【0009】
【課題を達成するための手段】上述の課題を解決するた
めに本発明が用いた技術的手段は、その中央に補強のた
めの直交する交差部を有する適宜の大きさの正方形枠体
の交差部に、該正方形枠体を底面として形成される篭体
が垂下展張時に海面と水平に垂下されるよう適宜素材及
び分径からなる垂下綱で結縛され、且正方形枠体を包被
してその端縁を集束縫合し固定させることにより所要の
育成容積を有す篭体を形成させる結節部が該結縛された
垂下綱の上部適宜位置に形成され、而も垂下綱の端部は
垂下展張に際して他の任意数の篭体相互と連結のうえ垂
下させるため適宜の長さでそれぞれ上方及び下方に延出
されている。そして正方形枠体を包被してその端縁が垂
下綱の結節部分に集束縫合される編地としては育成稚貝
を保持しえる目合で且伸びの無い角目編成された編地を
用いるとともに、正方形枠体の四隅と結節部分に至る編
地が角目方向に配されるように、而も垂下展張された場
合に付加される張力によって該四隅と結節部分に亘る編
地が緊張状となるよう集束縫合されている。更にこの緊
張状に包被張設される任意の隅部と結節部分に亘る編地
面には、相互の編地が垂下張時の潮流や波浪等の外力が
付加されても容易に離合しえぬよう1乃至5cmの範囲
で接合され、且この接合される上面の編地長が下面の編
地長に比べて3乃至10%の範囲で短かく形成されるよ
う、その接合両端が縫合されてなる開閉自在の収納口が
設けられた構成からなる帆立貝の中間育成篭に存する。
【0010】
【作用】上述の如き構成からなる本発明は以下のような
作用を有する。即ち中央に直交する交差部を有する正方
形枠体の交差部に垂下綱が結縛され、且この垂下綱の適
宜上部位置に設けた結節部分に、適宜目合で角目編成さ
れた編地を用いて、正方形枠体を包被させたうえその端
縁を垂下綱の上部に設けた結節部分に集束縫合させて固
定するため、篭体の形状が頂部を有する四角錐状とな
り、垂下展張させた場合に底部を形成する正方形枠体が
海面と平行な状態に垂下され、且四角錐状を有するため
潮流抵抗も著るしく緩和される。そして角目編成された
編地を用いて正方形枠体の四隅から結節部に至る編地が
角目方向に、且垂下展張に際しての張力が付加された場
合に緊張状となるよう集束縫合されてなり、而もこの緊
張状となる任意の隅部と結節部に亘る編地面に相互の編
地が1乃至5cmの範囲で接合され、且この接合される
上面の編地長が下面の編地長に比べて、3乃至10%の
範囲で短かく形成されるようその接合両端が縫合されて
なる開閉自在の収納口が設けられてなるため、該収納口
より所要量の帆立稚貝を収納させて垂下展張させること
により垂下展張に係る張力が正方形枠体の四隅と結節部
の編地面に付加され、且かかる編地面は伸びのない角目
方向に配されてなるため緊張状態となり、而もかかる編
地面に形成された開閉自在の収納口の上面の編地長が下
面の編地長に比べて3乃至10%の範囲で短かいため、
上面の編地に張力が強く付加され下面の編地と圧着され
閉塞保持がなされる。
【0011】
【実施例】以下に本発明実施例を図に基づき詳細に説明
すれば、図1は本発明の説明図であって、正方形枠体1
は多量の帆立稚貝を長期に亘り潮流や波浪抵抗の付加さ
れる海中で育成するために本発明を所要の位置に所要の
形状を以って展開保持させるうえから、強靭で且加工性
に優れること及び海中で垂下展張させるうえからも高比
重のものが望まれ、通常は鉄線や被覆鉄線材が使用され
る・そして本発明は浅海域に所定の間隔を以って10乃
至20篭が連結されて垂下展張されるものであり、且垂
下展張に際して該正方形枠体1が本発明の底部を形成す
るもので而も海面と平行な状態に垂下保持させるため、
該正方形枠体1の中央に補強材1Aを直交交差させて交
差部1Bが形成されており、該交差部1Bに垂下展張の
ため適宜素材及び分径からなる垂下綱2を結縛させて垂
下展張時の支点をもたせている。更に正方形枠体1は、
該正方形枠体1を包被して張設される編地3の適宜部位
を、垂下展長に際して付加される張力により緊張状に保
持させて開閉自由な収納口5に閉塞機能を保持せしめる
うえから正方形状が選択されるもので、且正方形枠体1
の大きさは収納育成される稚貝の殻長によって異るが、
一般的にはその殻長が6mm程度の稚貝を30乃至50
枚育成する場合では略35乃至50cm平方程度のもの
が好都合であり、而も使用する鉄線材も分径3乃至4m
m程度のものが望ましい。
【0012】かくしてなる正方形枠体1交差部1Bに結
縛されてなる垂下綱2の上部適宜位置には、適宜目合で
角目編成されてなる編地3により正方形枠体1を包被し
て所要の育成容積と且四角錐状の篭体4を形成するた
め、該編地の端縁3Aを集束縫合して固定させるための
結節部2Aが設けられてなるとともに、該垂下綱2の端
部2Cは垂下展張に際して他の篭体4と連結させるため
それぞれ上方及び下方に所要の長さで延出されている。
この垂下綱2には特段の制約はなく、育成期間中垂下展
張される育成篭を安全に垂下保持しえるものであれば使
用でき、通常35cm平方の育成篭を10乃至15篭連
結して垂下展張させるものでは、ポリエチレンやポリプ
ロピレン合成繊維を用いた分径6乃至7mm程度のもの
で十分である。
【0013】而して適宜の目合で角目編成されてなる編
地3を用いて、正方形枠体1を包被させたうえその端縁
3Aを垂下綱2の結節部2Aに集束縫合のうえ固定させ
ることにより、所要の育成容積で且全体が頂部4Aを有
する四角錐状の篭体4が形成されるものであるが、本発
明における最大の技術的特徴である篭体4の垂下展張に
際し該篭体4に付加される張力を以って篭体4の正方形
枠体1の四隅1Cと結節部2Aを結ぶ編地部分を緊張状
に保持させ、且この緊張状に保持される編地部分に開閉
自在な機能を保持する収納口5が形成されることにあ
る。これがためには、張力の付加に際しても編地3が変
形伸長せぬよう、角目編成された編地3を用いて角目方
向に配することが肝要であり、加えて編地3が正方形枠
体1と結節部2Aとの間で四角錐状に展開される篭体4
の寸法及び形状に十分に適合するよう包被張設させるこ
とが重要となる。
【0014】かかる要請に本発明は次の如き技術手段で
対処している。即ち図2は編地3の張設に際しての前加
工の説明図であって、予め正方形枠体1の寸法及び正方
形枠体1から結節部2Aまでの高さ寸法により篭体4が
展開された場合の展開表面積を算出のうえ、その適合す
る幅と且適宜目合に角目編成させてなる編地原反を適合
する長さで切断し二つ折してそれぞれの両端縁31を縫
合することにより、上部に開口縁32を有する片口開き
編袋30を作成する。而して該片口開き編袋30をA−
A線方向に開口させたうえ図3に示す如く、片口開き編
袋30の開口縁32が正方形枠体1の任意の隅1Cの対
角線上に位置するよう正方形枠体1をその内部に挿入す
る。そしてかかる開口縁32をその中央に配位されてな
る垂下綱2の上部適宜位置に設けた結節部2Aに集束縫
合のうえ固定されるとともに、その一方の正方形枠体1
の隅1Cから結節部2Aに亘る開口縁32相互が適宜の
幅で接合され縫合されている。
【0015】反面その他方の正方形枠体1の隅1Cから
結節部2Aに亘る開口縁32については図4に示す如く
一方側開口縁32Aを下面とし且他方側の開口縁32B
を上面としてその接合する幅が1乃至5cmの範囲で接
合させ、而も上面の開口縁32Bを形成する編地長が下
面の開口縁32Aを形成する編地長に比べて3乃至10
%の範囲で短かく形成されるよう接合両端33が縫合さ
れて収納口5が形成されている。即ちかかる構成を用い
ることにより多数の篭体4が連結され垂下展張される
と、垂下展張に係る張力が連結される垂下綱2はもとよ
り、篭体4の正方形枠体1の四隅1Cと結節部2Aを結
ぶ編地面に付加される。そして正方形枠体1の四隅1C
の中の対照的位置2ヶ所の隅1Cと結節部2Aとを結ぶ
編地面は、編地3の包被展張に際して予め形成させた片
口開き編袋30の開口縁31で形成されるものであるか
ら角目方向に配され、従って張力が付加された状態では
変形伸長することなく緊張状に保持されることとなる。
【0016】かくして緊張状に保持される編地面には、
その一方側の開口縁32Aを形成する編地3を下面とし
且他方側の開口縁32Bを形成する編地3を上面とし
て、その接合する幅が1乃至5cmの範囲で、而も上面
の開口縁32Bを形成する編地長が下面の開口縁32A
を形成する編地長に比べて3乃至10%の範囲で短かく
形成されるよう、その接合両端33が縫合されて収納口
5が形成されてなるため、垂下展張に係る張内の付加時
には常に収納口5を形成している編地長の短かい上面の
開口縁32Bを形成する編地3に強く張力が付加され、
下面の編地3を圧着して収納口5が閉塞された状態とな
る。かかる場合において、該収納口5の長さは稚貝の収
納や育成した成貝の取出しに支障の無いよう、好ましく
は正方形枠体1の隅1Cより結節部2Aに亘って形成さ
れることが望まれ、而も該収納口5が十分長く形成され
る場合には、該収納口5を形成させるための上面の編地
3と下面の編地3との接合の幅も大きく形成させること
が稚貝の逃散や脱落防止のうえから望まれる。そして収
納口5を形成する相互の編地3の接合の幅の範囲が1乃
至5cmに制限される事由は、1cm以下では垂下展張
時における潮流や波浪等の外力が加重された場合に篭体
4の変形等により開口し稚貝の逃散や脱落の危険があり
且5cmを超えると取出時に支障が生ずることによる。
更に収納口5を形成する上面の編地長が下面の編地長に
比べて3乃至10%の範囲に制限される所以は、編地自
体並びに張設される篭体自身も多少の変形を有するた
め、3%以下では張力付加時に圧着作用が働かず、而も
10%をこえると収納口5に緩みや弛みが発生し稚貝の
逃散や脱落の危険が生ずることによる。かくしてなる本
発明の収納口より所要数の帆立稚貝を収納させたうえ、
それぞれに延出されてなる垂下綱2の端部2Cを連結さ
せたうえ図5に示すように海中に垂下展張し育成をおこ
なう。
【0018】
【発明の効果】本発明は上述の如く角目編成編地で、垂
下展張時の展開形状に適合するよう張設され、且張力の
付加される正方形枠体の隅と編地の端縁が集束結合され
る結節部とを結ぶ少なくとも2ヶ所以上の編地面が角目
方向に配されてなるため、垂下展張時には編地全体の編
目が変形伸長されることなく緊張状に保持され潮通しが
良好となり、飼料となるプランクトンや溶存酸素の豊富
な海水が十分に供給され育成が促進されるとともに、排
泄物等の排出も良好になされ病害や斃死も防止される。
更に本発明は垂下展張に際し緊張状に保持される編地面
に、編地相互を1乃至5cmの範囲で接合させ且その上
面の編地長が下面の編地長に比べて3乃至10%の範囲
で短かく形成されるようその接合両端が縫合された収納
口が形成されてなるため、収納時や取出時には単に押し
拡げるのみで作業がなしえ、作業が著るしく簡便に且能
率的となるばかりか、育成期間中はその垂下展張に係る
張力で確実に圧着され閉塞されるため稚貝の逃散や脱落
も防止しえる等、極めて特長の多い帆立貝の中間育成篭
といえる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scallop intermediate breeding basket capable of growing scallop larvae on healthy seedlings with a high production yield. 2. Description of the Related Art Scallops have been enormously consumed in recent years because of their unique flavor and variety of cooking. The improvement of this rearing and release propagation technology is mentioned. That is, the scallop lays eggs around March or April when the water temperature rises to 6 to 8 ° C., and for about 40 days after the laying of eggs, the scallop secretes and attaches to the larva as a floating larva (larva), which forms plankton ecology. Therefore, it has been studied for a long time that seedlings are collected by installing a so-called seedling collecting substrate in the sea utilizing such ecology, and a technique of natural seedling collection has been established to this day. [0003] However, even when the larvae attached to the seedling cultivator grow to a shell length of about 8 to 10 mm, their ability to secrete the asphalt is degraded and falls to the seabed. In addition to the lack of defensive capabilities, this period also saw the formation of low-rise anoxic
Since the selectivity for the sediment has not been reached, it cannot be expected to spontaneously proliferate or die due to external growth. [0004] For this reason, the larvae attached to the seedling collector are once collected, and in a shallow sea area where protection from external enemies and sufficient supply of feed plankton and dissolved oxygen can be provided, healthy seedlings can maintain sufficient self-defense ability. In addition to the intermediate breeding for this purpose, it is necessary to further grow the breeding by so-called aquaculture and release. [0005] By the way, various breeding tools are used as intermediate means for scallop larvae. However, since enormous amounts of larvae are handled in the middle breeding, the breeding tools are inexpensive and easy to handle. Naturally, it is necessary to be able to withstand rapid tides and waves during long-term intermediate growth, to maintain the larvae so that they do not escape or fall off during growth, or to provide sufficient plankton and dissolved oxygen. Functions such as good tide which can promote supply and discharge of excrement are required. [0006] For this reason, as shown in Fig. 6, a circular frame A in which a net material is appropriately stretched in a required area as a middle breeding basket of a scallop is used. Each of the bodies A is tied and connected at an equal interval using an appropriate hanging rope B, and is wrapped around with an appropriate rope C to form a large number of sections D. A hanging rope H is tied to a round basket provided with an opening E to be cut longitudinally or a square frame G having a cross reinforcing portion F at the center, and a knot portion is provided at an appropriate upper portion of the hanging rope H. I, the ends of the hanging rope H are extended upward and downward to the required length, respectively, and the frame G is covered with an appropriate netting J. The basket K is formed by focusing and fixing with the above, and an opening L is formed by cleaving the mesh J at an appropriate position of the basket K. Those linking many Lumpur basket is used. However, the middle breeding of scallop larvae requires not only one fisherman to use thousands to tens of thousands of baskets in terms of cages, but also 3 to 4 months as the shell length grows during the growing period. It is necessary to adjust the growth density every time and perform management for preventing overgrowth. Because of this, an enormous amount of juvenile shellfish is stored in the round basket or pearl basket through the openings E and L, and the opening of the shell is broken so that the stored shellfish does not escape or fall off during the growing period. It is necessary to suture and close the mesh fabrics with a suture wire M made of an appropriate line or string, and cut the suture-closed suture M each time the growth density is adjusted.
An appropriate number of shells are taken out from the opening E or L, and after adjusting the growing density, the shells are closed again and grown.
Therefore, the current intermediate breeding basket, in addition to its enormous amount of use and the difficulty of closing the opening, requires enormous labor and time, thereby significantly improving the catch productivity related to intermediate breeding. It is in a situation that is constrained. Attempts have been made to simplify the opening and closing work using fasteners as a means to solve this problem, but the shallow sea areas where intermediate breeding is performed are larvae and larvae of fish and shellfish, including animal and phytoplankton,
Alternatively, a large amount of spores, zoospores, germs, etc. of seaweeds and diatoms are floating and these are caught or adhered in the fastener part, so that the opening / closing function is impaired in a short time. Has not been reached. SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and the present invention relates to a knitted fabric which forms a storage opening with a tension related to its hanging extension during intermediate growth. To provide a middle breeding basket for scallops that can be easily operated by simply expanding the storage opening when storing and unloading, by preventing the scallops from escaping or falling off by pressing and holding them. It is in. [0009] In order to solve the above-mentioned problems, the technical means used by the present invention is a square frame of an appropriate size having an orthogonal intersection for reinforcement at the center thereof. At the intersection of the bodies, a basket formed with the square frame as the bottom surface is tied with a hanging rope composed of a suitable material and a diameter so that the basket can be hung horizontally with the sea surface during the hanging extension. A knot portion for forming a cage body having a required growth volume by covering and suturing and fixing the edges thereof is formed at an appropriate position above the tied drooping rope. The portions extend upward and downward, respectively, with appropriate lengths for connection with and interlocking with any number of other cages during the hanging extension. As a knitted fabric that covers the square frame and whose edges are bundled and stitched to the knot portion of the drooping rope, a knitted fabric that is capable of holding the growing larvae and that is not squarely knitted is used. At the same time, the knitted fabric extending over the four corners and the knot portion is tensioned by the tension applied when hanging down so that the knitted fabric that reaches the four corners and the knot portion of the square frame is arranged in the corner direction. It is stitched together so that Furthermore, the mutual knitted fabrics can easily separate from each other even if external forces such as tidal currents and waves are applied to the knitted ground over the arbitrary corners and knots that are stretched and wrapped in tension. The both ends of the joint are sewn so that the length of the knitted fabric on the upper surface is shorter than that of the lower surface by 3 to 10%. The present invention resides in an intermediate breeding basket of scallops having a structure provided with an opening / closing storage opening. The present invention having the above configuration has the following functions. That is, the hanging rope is tied to the intersection of the square frame having the intersection that is orthogonal to the center, and the knitted fabric knitted squarely with an appropriate fit is attached to the knot portion provided at an appropriate upper position of the hanging rope. In order to cover the square frame body and to fix and fix its edge to the knot portion provided on the upper part of the drooping rope, the cage body becomes a quadrangular pyramid having a top, In this case, the square frame forming the bottom is suspended in a state parallel to the sea surface and has a quadrangular pyramid shape, so that the tidal resistance is remarkably reduced. Then, the knitted fabric from the four corners of the square frame to the knotted portion is sewn using the knitted fabric knitted in a square direction so that the knitted fabric becomes taut when tension is applied at the time of hanging down. In addition, the mutual knitted fabric is joined in a range of 1 to 5 cm to the knitted ground over the arbitrary corner portion and the knotted portion which becomes the tension state, and the knitted fabric length of the upper surface to be joined is the knitted fabric of the lower surface. An openable and closable storage opening formed by suturing both ends of the joint is provided so as to be formed in a range of 3 to 10% shorter than the length. By storing and hanging and extending, the tension related to the hanging and stretching is applied to the knitted ground of the four corners and the knot portion of the square frame, and the knitted ground is arranged in the direction of the corner where there is no elongation, so that it is in a tension state, The length of the knitted fabric on the top surface of the openable storage port formed on the knitted ground For shorter range of 3 to 10% compared to the knitted fabric length of the lower surface,
Tension is strongly applied to the knitted fabric on the upper surface, and the fabric is pressed against the knitted fabric on the lower surface and closed and held. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of the present invention; FIG.
In order to grow a large number of scallops in the sea where tidal currents and wave resistance are added over a long period of time, the present invention is developed and maintained in a required position in a required shape, and is tough and workable. It is desirable that the material has a high specific gravity from the viewpoint of being excellent in hanging and extending underwater in the sea. Usually, an iron wire or a coated iron wire is used. Are connected and drooped, and when the drooping is performed, the square frame 1 forms the bottom of the present invention, and is also drooped and held in a state parallel to the sea surface.
An intersecting portion 1B is formed at the center of the square frame 1 by orthogonally intersecting a reinforcing material 1A, and a drooping rope 2 made of a material and a diameter is appropriately bound to the intersecting portion 1B for droop extension. The fulcrum at the time of extension is given. Furthermore, the square frame 1
An appropriate portion of the knitted fabric 3 which is stretched so as to cover the square frame 1 is held in tension by the tension applied during the hanging extension, so that the storage opening 5 which can be freely opened and closed has a closing function. The square shape is selected from
The size varies depending on the length of the shell of the fry that is stored and raised,
Generally, 30-50 shellfish with a shell length of about 6 mm
In the case of cultivating a single sheet, it is convenient that the diameter is about 35 to 50 cm square, and the iron wire used is also 3 to 4 m in diameter.
m is desirable. The square frame 1 is wrapped by a knitted fabric 3 which is appropriately knitted at an appropriate position on an upper part of the hanging rope 2 tied to the intersection 1B of the square frame 1 thus formed. In order to form the cage 4 having a required growth volume and a quadrangular pyramid shape, a knot portion 2A is provided for fixing and stitching the edges 3A of the knitted fabric together. The end portion 2C extends upward and downward by a required length to be connected to another cage body 4 when hanging down.
There is no particular restriction on the drooping rope 2 and any one can be used as long as it can safely hold the growing basket that is suspended during the growing period. Usually, 10 to 15 baskets of 35 cm square are connected and drooped. In the case of stretching, a diameter of about 6 to 7 mm using polyethylene or polypropylene synthetic fiber is sufficient. The knitted fabric 3 which is knitted at an appropriate angle is used to cover the square frame 1 and to attach its edge 3A to the knot portion 2A of the hanging rope 2 for sewing. By fixing the cage 4 above, a quadrangular pyramid-shaped cage 4 having a required growth volume and having a top 4A as a whole is formed. At this time, the knitted fabric portion connecting the four corners 1C of the square frame 1 of the basket 4 and the knot portion 2A is held in tension by the tension applied to the basket 4, and the knit held in this tension is held. A storage port 5 for holding a function that can be freely opened and closed is formed in the ground portion. For this purpose, it is essential to arrange the knitted fabric 3 in the corner direction using the knitted fabric 3 so that the knitted fabric 3 does not deform and elongate even when tension is applied. A cage 4 that is developed into a quadrangular pyramid between the frame 1 and the node 2A
It is important that the wrapping is sufficiently adapted to the size and shape of the wrapper. The present invention addresses such a request by the following technical means. That is, FIG. 2 is an explanatory view of the pre-processing when the knitted fabric 3 is stretched, and the cage 4 has been developed in advance according to the dimensions of the square frame 1 and the height from the square frame 1 to the knot portion 2A. Calculate the developed surface area in the case, cut the original knitted fabric, which has the appropriate width and the square knitting as appropriate, into the appropriate length, fold it in half, and sew both end edges 31 of each. Thereby, the one-side opening knitted bag 30 having the opening edge 32 at the upper part is created. Then, the one-side opening knit bag 30 is A-
After opening in the direction of line A, as shown in FIG. 3, the square frame 1 is inserted into the square frame 1 such that the opening edge 32 of the one-sided opening knitted bag 30 is located on a diagonal line of an arbitrary corner 1C of the square frame 1. . The opening edge 32 is fixed to the knot portion 2A provided at an appropriate position above the drooping rope 2 arranged at the center of the hanging edge 32 after suturing the bundle, and one of the square frames 1
The opening edges 32 from the corner 1C to the knot portion 2A are joined to each other with an appropriate width and sewn. On the other hand, as shown in FIG. 4, the opening edge 32 extending from the corner 1C of the other square frame 1 to the knot portion 2A has one opening edge 32A as a lower surface and the other opening edge 32B as shown in FIG.
Is used as the upper surface and the width of the bonding is in the range of 1 to 5 cm, and the knitted fabric length forming the opening edge 32B on the upper surface is 3 to 10 times longer than the knitted fabric length forming the opening edge 32A on the lower surface.
%, The joining ends 33 are sewn to form the storage opening 5 so as to be formed as short as possible. That is, when a large number of baskets 4 are connected and suspended by using such a configuration, the four corners 1C of the square frame 1 of the basket 4 and the knots are connected to the hanging ropes 2 to which the tension relating to the suspension extension is connected. It is added to the knitted ground connecting 2A. And four corners 1C of the square frame 1
The knitted ground connecting the two corners 1C and the knot portion 2A at the two contrasting positions is formed by the opening edge 31 of the one-sided opening knitted bag 30 formed in advance when the knitted fabric 3 is extended. Therefore, in a state in which tension is applied, the tension is maintained without deformation and elongation. On the knitted ground which is thus held in tension,
With the knitted fabric 3 forming the opening edge 32A on one side as the lower surface and the knitted fabric 3 forming the opening edge 32B on the other side as the upper surface, the joining width is in the range of 1 to 5 cm. The length of the knitted fabric forming the edge 32B is the opening edge 32A on the lower surface.
The joining ends 33 are sewn to form the storage opening 5 so as to be formed shorter in the range of 3 to 10% as compared with the knitted fabric length forming the knitted fabric. A strong tension is applied to the knitted fabric 3 that forms the opening edge 32B of the upper surface having a short knitted fabric length that always forms the storage opening 5, and
By pressing the knitted fabric 3 on the lower surface, the storage port 5 is closed. In such a case, the length of the storage port 5 is preferably formed from the corner 1C of the square frame 1 to the knot portion 2A so as not to hinder the storage of the juvenile shellfish and the removal of the grown adult shellfish. Desirably, if the storage opening 5 is formed sufficiently long, the width of the joint between the upper surface knitted fabric 3 and the lower surface knitted fabric 3 for forming the storage opening 5 may be increased. It is desirable from the viewpoint of preventing escape and falling off of the larva. The reason why the range of the width of the joint between the knitted fabrics 3 forming the storage opening 5 is limited to 1 to 5 cm is that when the external force such as a tidal current or a wave at the time of the hanging extension is applied, the cage is not more than 1 cm. There is a danger of escape or falling off of the juvenile shellfish due to deformation or the like of 4 and if it exceeds 5 cm, there is a problem in taking out.
Further, the reason that the length of the knitted fabric on the upper surface forming the storage opening 5 is limited to a range of 3 to 10% of the length of the knitted fabric on the lower surface, is that the knitted fabric itself and the cage itself to be stretched also undergo some deformation. If it is less than 3%, the crimping action does not work at the time of applying tension, and if it exceeds 10%, the storage opening 5 is loosened or loosened, and there is a risk of escape or falling off of the juvenile shellfish. After storing a required number of scallops from the storage opening of the present invention thus formed,
The ends 2C of the drooping ropes 2 that are respectively extended are connected, and then drooping and growing in the sea as shown in FIG. As described above, the present invention relates to a square knitted knitted fabric, which is stretched so as to conform to the developed shape at the time of hanging extension and to which the tension is applied to the corners of the square frame and the knitted fabric. At least two or more knitted grounds connecting the edges with the knots to be bound and bound are arranged in the corner direction, so that the entire knitted stitches are held in tension without being deformed and elongated during the hanging extension. Tide is improved, plankton as feed and seawater rich in dissolved oxygen are sufficiently supplied to promote breeding, and excretion and the like are discharged well, thereby preventing disease and death.
Further, the present invention provides a method for joining knitted fabrics to each other in a range of 1 to 5 cm on a knitted ground which is held in tension during the hanging extension, and the knitted fabric length on the upper surface is 3 to 10% of the knitted fabric length on the lower surface. Since the storage opening is formed by stitching both ends of the joint so that it is formed as short as possible in the range, the work can be done simply by pushing and expanding at the time of storing and taking out, and the work is remarkable, simple and efficient. In addition, it can be said that it is an intermediate breeding basket for scallops which has extremely many features, such as being able to prevent the escape and falling off of the young mussel during the breeding period, because it is securely pressed and closed by the tension related to the drooping extension, thereby preventing the escape and falling off of the larva.
【図面の簡単な説明】 【図1】本発明の説明図である。 【図2】編地の前加工の説明図である。 【図3】正方形枠体と編地の張設方法の説明図である。 【図4】収納口の拡大説明図である。 【図5】垂下展張状態を示す参考図である。 【図6】従来の帆立貝の中間育成篭の例示図である。 【符号の説明】 1 正方形枠体 1A 補強材 1B 交差部 1C 隅 2 垂下綱 2A 結節部 2C 垂下綱の端部 3 編地 3A 編地端縁 4 篭体 4A 篭体の頂部 5 収納口 30 片口開き編袋 31 片口開き編袋の両端縁 32 片口開き編袋開口縁[Brief description of the drawings] FIG. 1 is an explanatory diagram of the present invention. FIG. 2 is an explanatory diagram of pre-processing of a knitted fabric. FIG. 3 is an explanatory diagram of a method of stretching a square frame and a knitted fabric. FIG. 4 is an enlarged explanatory view of a storage opening. FIG. 5 is a reference view showing a hanging extension state. FIG. 6 is an illustration of a conventional middle breeding basket of scallop. [Explanation of symbols] 1 square frame 1A Reinforcement 1B intersection 1C corner 2 hanging rope 2A Nodule 2C End of hanging rope 3 knitted fabric 3A Edge of knitted fabric 4 basket 4A Top of basket 5 storage mouth 30 one side opening knitting bag 31 Both edges of one-side open knitted bag 32 Single-sided opening knitting bag opening edge
Claims (1)
を有する適宜大きさの正方形枠体の交差部に、適宜素材
及び分径の垂下綱が結縛され且その上部適宜位置に結節
部を設けたうえ、その端部がそれぞれ上方及び下方に適
宜長さで延出されてなり、而も適宜目合に角目編成され
た編地で正方形枠体を包被させその端縁が結節部分に、
且正方形枠体の四隅から該結節部分に至る編地が角目の
方向に配されるよう、而も垂下展張時に四隅から結節部
分に至る編地が緊張状となるよう集束縫合されており、
更に正方形枠体の任意隅部と頂部に亘る編地面に、相互
の編地が1乃至5cmの範囲で接合され且該接合される
上面の編地長が下面の編地長に比べて3乃至10%の範
囲で短かく形成されるようその接合両端が縫合されて開
閉自在な収納口が設けてなることを特徴とする帆立貝の
中間育成篭。(57) [Claims 1] A hanging material of appropriate size and diameter is tied to the intersection of an appropriately sized square frame having an orthogonal intersection for reinforcement at the center thereof. In addition, a knot portion is provided at an appropriate position on the upper portion, and the ends thereof are extended upward and downward by an appropriate length, respectively. And the edge is the nodule,
The knitted fabric from the four corners of the square frame to the knotted portion is arranged in the direction of the corners, and the knitted fabric from the four corners to the knotted portion is stretched and stitched during the hanging extension,
Further, the mutual knitted fabric is joined to the knitted ground over the arbitrary corner and the top of the square frame body in the range of 1 to 5 cm, and the length of the knitted fabric on the upper surface to be joined is 3 to 3 times smaller than the length of the knitted fabric on the lower surface. An intermediate breeding basket for a scallop, wherein both ends of the joint are sewn so as to be formed as short as possible within a range of 10%, and a storage opening that can be opened and closed is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06383698A JP3520195B2 (en) | 1998-02-06 | 1998-02-06 | Scallop intermediate breeding basket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP06383698A JP3520195B2 (en) | 1998-02-06 | 1998-02-06 | Scallop intermediate breeding basket |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP37846398A Division JP3527428B2 (en) | 1998-12-25 | 1998-12-25 | Scallop breeding basket |
Publications (2)
Publication Number | Publication Date |
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JPH11220971A JPH11220971A (en) | 1999-08-17 |
JP3520195B2 true JP3520195B2 (en) | 2004-04-19 |
Family
ID=13240844
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JP06383698A Expired - Lifetime JP3520195B2 (en) | 1998-02-06 | 1998-02-06 | Scallop intermediate breeding basket |
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JP (1) | JP3520195B2 (en) |
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CN110398493B (en) * | 2019-08-08 | 2023-08-15 | 浙江万里学院 | Device for observing and measuring bivalve poda secretion and application method thereof |
JP7328689B2 (en) * | 2019-11-18 | 2023-08-17 | 株式会社東北総合研究社 | Shellfish farming basket |
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