JPH03254618A - Method for keeping fish in living state and apparatus therefor - Google Patents
Method for keeping fish in living state and apparatus thereforInfo
- Publication number
- JPH03254618A JPH03254618A JP976090A JP976090A JPH03254618A JP H03254618 A JPH03254618 A JP H03254618A JP 976090 A JP976090 A JP 976090A JP 976090 A JP976090 A JP 976090A JP H03254618 A JPH03254618 A JP H03254618A
- Authority
- JP
- Japan
- Prior art keywords
- seawater
- tank
- shielding plate
- fish
- filtration tank
- 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.)
- Pending
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims description 18
- 239000013535 sea water Substances 0.000 claims abstract description 134
- 238000001914 filtration Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 abstract 2
- 235000019688 fish Nutrition 0.000 description 58
- 241000269908 Platichthys flesus Species 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 210000003608 fece Anatomy 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 241000473391 Archosargus rhomboidalis Species 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 235000010469 Glycine max Nutrition 0.000 description 4
- 241001600434 Plectroglyphidodon lacrymatus Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241001504592 Trachurus trachurus Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000723298 Dicentrarchus labrax Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229920006298 saran Polymers 0.000 description 2
- 240000001606 Adenanthera pavonina Species 0.000 description 1
- 235000011470 Adenanthera pavonina Nutrition 0.000 description 1
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 244000132059 Carica parviflora Species 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 241000269978 Pleuronectiformes Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 235000006694 eating habits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ヒラメ、ソイ、タイ、ハマチ、アジ等の魚を
生きたまま長時間保つための方法及び装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for keeping fish such as flounder, soybean, sea bream, yellowtail, horse mackerel, etc. alive for a long period of time.
近年の食生活の向上に伴い、新鮮な魚への需要が増大し
ている。これを受けてより新鮮な魚を供給する目的で活
魚の輸送方法が種々開発され、取った魚を水槽に入れて
漁船から消費地へと魚が生きたまま輸送されている。ま
た、活魚用の水槽を備えた料理店の数も増えている。With the improvement of dietary habits in recent years, the demand for fresh fish is increasing. In response to this, various methods of transporting live fish have been developed for the purpose of supplying fresher fish, and fish are now transported alive from fishing boats to consumption areas by placing them in aquariums. Additionally, the number of restaurants equipped with live fish tanks is increasing.
ところが、アジ、タイ、ヒラメやハマチなどを生きたま
まで輸送する場合、魚からの種々の排出物を浄化して海
水を奇麗な状態に維持するための濾過槽が設置さている
が、濾過槽が水槽の外に設置されていることが多く、装
置が大きくなるという欠点がある。一方、濾過槽を水槽
の内部に設置して装置をコンパクトにする方法も提案さ
れているが、濾過効率が不十分であったり、１１過槽を
必要以上に大きくせざるを得な′Ｊ）等実用上問題が多
いものであった。However, when transporting live horse mackerel, sea bream, flounder, yellowtail, etc., filtration tanks are installed to purify the various wastes from the fish and maintain the seawater in a clean state, but the filtration tanks are They are often installed outside the aquarium and have the disadvantage of being bulky. On the other hand, a method has been proposed in which the filtration tank is installed inside the aquarium to make the device more compact, but the filtration efficiency may be insufficient or the filtration tank must be made larger than necessary. There were many practical problems.
例えば、特開平１−１４１５３６号公報には、タイ、ハ
マチ、ヒラメ等が概略静止遊泳する環流をつくり１、か
つ水槽の中央に濾過槽を設置し、海水のオオバーフロー
を濾過槽に上部から導入して海水の汚れをきれいにしつ
つ、魚を輸送する方法が開示されている。との方法によ
ればある程度前を生きたまま保ことができものの、との
方法では海水を水槽の上部から抜き出しているため魚の
糞を効率的に除去できず、長期間魚を生きたまま保つこ
とができないという問題がある。つまり、−船釣に魚の
糞は重くて海水中に沈降遊するからであり、との糞を効
率的に除去しないと海水が濁りかつ海水のｐＨが低下し
て酸素交換率が低下して魚にストレスがかかり、魚の生
育が低下するからである。For example, in Japanese Patent Application Laid-Open No. 1-141536, a circular current is created in which sea bream, yellowtail, flounder, etc. swim approximately stationary1, and a filtration tank is installed in the center of the tank, and an overflow of seawater is introduced into the filtration tank from the top. Disclosed is a method for transporting fish while cleaning seawater. Although it is possible to keep the fish alive to some extent using the method (2), the method (2) extracts seawater from the top of the aquarium, making it impossible to remove fish feces efficiently and keeping the fish alive for a long period of time. The problem is that I can't. In other words, - During boat fishing, fish excrement is heavy and settles in the seawater, and if the excrement is not removed efficiently, the seawater becomes cloudy and the pH of the seawater decreases, reducing the oxygen exchange rate and causing fish to fish. This is because it puts stress on the fish and reduces the growth of the fish.
一方、実開昭５９−９５８７３号公報には、水槽の下方
部に多数の細孔を有するスノコ板を設置し、スノコ板の
下面中央部と底板との間を区画して長方形のろ過室を形
成し、ここに濾材を充填して海水中の汚れ物質を除去し
、もって魚を長期輸送できるようにした水槽が開示され
ている。確かに、との方法によれば、理論的には魚の糞
を効率的に除去することができるはずであるが、必要以
上にスノコ板の表面積を大きくしなければならず、かつ
海水の循環や魚の遊泳によって、海水中の糞が海水中に
分散して海氷が濁るなどの問題が生じる。On the other hand, in Japanese Utility Model Application Publication No. 59-95873, a slatted board with a large number of pores is installed in the lower part of the water tank, and a rectangular filtration chamber is created by dividing the center part of the lower surface of the slatted board and the bottom plate. An aquarium is disclosed in which a filter material is filled in the aquarium to remove pollutants from the seawater, thereby making it possible to transport fish for a long period of time. It is true that according to the method described above, it should be possible to remove fish excrement efficiently in theory, but it would require making the surface area of the slat board larger than necessary, and it would also reduce the circulation of seawater. Swimming by fish causes problems such as feces in the seawater being dispersed into the seawater, making the sea ice cloudy.
従って、本発明は、魚の糞を効率的に除去でき、かつ魚
を生きたまま長時間保持できる方法を提供することを目
的とする。また、本発明は、小さな装置であって、大量
の魚を長時間生きたまま保持できる装置を提供すること
を目的とする。Therefore, an object of the present invention is to provide a method that can efficiently remove fish feces and keep fish alive for a long time. Another object of the present invention is to provide a small device capable of keeping a large amount of fish alive for a long period of time.
本発明は、水槽の中央に濾過槽が設置された形態にする
こと、その濾過槽の外側に海水遮蔽板を設け、海水遮蔽
板の下部から海水を海水遮蔽板と濾過槽との間に形成さ
れた空間に排水し、次いで濾過槽の上部に設けた吸水孔
から海水を濾過槽に導入して濾過すると、海水中に沈降
した糞などの魚の***物を海水中に分散させずに効率的
に除去でき、上記課題を達成できるとの知見を基づいて
成されたのである。The present invention provides a form in which a filtration tank is installed in the center of an aquarium, a seawater shielding plate is provided outside the filtration tank, and seawater is formed between the seawater shielding plate and the filtration tank from the lower part of the seawater shielding plate. When seawater is drained into a space where water is drained, and then introduced into the filtration tank through the water absorption hole provided at the top of the filtration tank, it can be filtered efficiently without dispersing fish excrement such as feces that has settled in the seawater. This was done based on the knowledge that the above problem could be achieved.
すなわち、本発明は、水槽の中央に濾過槽が設置され、
該濾過槽の外側に濾過槽を囲むように海水遮蔽板が設け
られ、海水遮蔽板と水槽の内壁とで囲まれた空間に充填
された海水に生きた魚を収容し、海水を海水遮蔽板の下
部に設けた海水排出孔から海水遮蔽板と濾過槽との間に
形成された空間に排出し、次いて濾過槽の上部に設けた
吸水孔から濾過槽に導入して海水を濾過して水槽に循環
することを特徴とする魚を生きたまま保つ方法を提供す
る。That is, in the present invention, a filtration tank is installed in the center of the aquarium,
A seawater shielding plate is provided on the outside of the filtration tank so as to surround the filtration tank, and a space surrounded by the seawater shielding plate and the inner wall of the tank is filled with living fish, and the seawater is stored in the seawater shielding plate. The seawater is discharged from the seawater discharge hole provided at the bottom of the tank into the space formed between the seawater shielding plate and the filtration tank, and then introduced into the filtration tank through the water absorption hole provided at the top of the filtration tank to filter the seawater. To provide a method for keeping fish alive, characterized by circulating them in an aquarium.
又、上記方法を実施するあたり、水槽、該水槽の中央に
設けられた濾過槽と、該濾過槽の外側に濾過槽を囲むよ
うに設けられた海水遮蔽板を備え、海水遮蔽板と水槽の
内壁とで囲まれた空間に生きた魚を収容するための海水
貯蔵部を形成し、海水遮蔽板の下部に海水排出孔が設（
すられ、かつ濾過槽の上部に吸水孔が設けられ、さらに
海水貯蔵部の海水を海水排出孔、海水遮蔽板と濾過槽と
の間及グ吸水孔を通り、濾過槽内を通って海水貯蔵部に
循環するための循環装置を備えたことを特徴とする魚を
生きたまま保つための装置によれば、装置を小型にする
ことができ、極めて効率的に長時間魚を生かしておくこ
とができる。In addition, when carrying out the above method, an aquarium, a filtration tank provided in the center of the aquarium, and a seawater shielding plate provided outside the filtration tank to surround the filtration tank are provided, and the seawater shielding plate and the aquarium are connected to each other. A seawater storage area for storing live fish is formed in the space surrounded by the inner wall, and a seawater discharge hole is provided at the bottom of the seawater shielding plate (
A water absorption hole is provided at the top of the filtration tank, and the seawater from the seawater storage section passes through the seawater discharge hole, the water absorption hole between the seawater shielding plate and the filtration tank, and then passes through the filtration tank to store seawater. According to the device for keeping fish alive, which is characterized by being equipped with a circulation device for circulating the fish in the fish tank, the device can be made compact and the fish can be kept alive for a long time extremely efficiently. I can do it.
次ぎに、本発明を添付図面に基づいて説明する。Next, the present invention will be explained based on the accompanying drawings.
第１図は本発明で使用する魚を生きたまま保つための装
置１の概略断面図であり、第２図はその斜視図である。FIG. 1 is a schematic sectional view of a device 1 for keeping fish alive used in the present invention, and FIG. 2 is a perspective view thereof.
装置１には蓋３を有する円筒形の水槽２の中に濾過ｆ’
！４が設けられている。濾過槽４の外側には海水遮蔽板
５が濾過槽４を囲むように設けられ、海水遮蔽板５と水
槽２の内壁とで囲まれた空間に生きた魚を収容するため
の海水貯蔵部６が形成され、ここに魚が収容される。海
水遮蔽板５の下部は開放に戊っており、ここに海水排出
孔７が形成されている。また、濾過槽４の上部には吸水
孔８が形成されている。との海水排出孔７は魚がここか
ら濾過槽４内に陵内しない程度の大きさとするのがよく
、例えば横約１８ｃｍ、縦約１０ｃｍ程度の大きさで、
間隔が５〜７關程度になるように横棒を５〜７本取り付
）するのがよい。又、海水排出孔７を水槽の底から約３
〜５ｃｍの所に形成するのがよく、それ以外の部分から
海水が濾過槽４と海水遮蔽板５の間に形成された空間部
１１に入らｔ；いようにするのがよい。尚、濾過槽４と
海水遮蔽板５の間に形成される空間部１１の幅は任意と
することができるが、装置のコンパクト化から幅を約１
〜１０ｃｍとするのがよい。The device 1 includes a filtration f' in a cylindrical water tank 2 with a lid 3.
! 4 is provided. A seawater shielding plate 5 is provided outside the filtration tank 4 so as to surround the filtration tank 4, and a seawater storage section 6 for storing live fish is provided in a space surrounded by the seawater shielding plate 5 and the inner wall of the aquarium 2. is formed and the fish are housed here. The lower part of the seawater shielding plate 5 is open, and a seawater discharge hole 7 is formed therein. Further, a water absorption hole 8 is formed in the upper part of the filter tank 4. The seawater discharge hole 7 should be large enough to prevent fish from entering the filter tank 4, for example, about 18 cm in width and 10 cm in height.
It is best to install 5 to 7 horizontal bars so that the distance is about 5 to 7 meters. In addition, the seawater drain hole 7 should be placed about 3 feet from the bottom of the aquarium.
It is preferable to form the filter at a distance of ~5 cm to prevent seawater from entering the space 11 formed between the filtration tank 4 and the seawater shielding plate 5 from other parts. Note that the width of the space 11 formed between the filtration tank 4 and the seawater shielding plate 5 can be set arbitrarily, but in order to make the device more compact, the width is set to about 1
It is preferable to set the distance to 10 cm.
一方、吸水孔８を濾過槽４の上端から海水面との距離が
０〜１５ｃｍ、好ましくは０〜１０ｃｍとなるように吸
水孔８を濾過槽４に形成するのがよく、それ以外の部分
から海水が濾過槽４に入らないようにするのがよい。本
発明方法の使用態様の１つとして、まず海水貯蔵部６に
海水を入れた後、ここに生きた魚を入れ、次いで海水面
９が蓋３に接するように充分に海水を入れ、キャップ１
９．２０をかぶせて海水遮蔽板５と水槽２の内壁とで囲
まれた空間に実質的にヘッドスペースが生じないように
するのがよい。つまり、ヘッドスペースが生じると、魚
の輸送中に海面が揺れ、魚がストレスを受けるからであ
る。また、輸送中に蓋３やキャップ１９．２０がはずれ
たり、海水が漏れたりしないように、蓋３及びキャップ
１９．２０が水槽２にしっかり固定できる形態のものが
よい。On the other hand, the water absorption holes 8 are preferably formed in the filtration tank 4 so that the distance from the upper end of the filtration tank 4 to the sea level is 0 to 15 cm, preferably 0 to 10 cm, and from other parts. It is preferable to prevent seawater from entering the filter tank 4. One of the usage modes of the method of the present invention is to first fill the seawater storage section 6 with seawater, then put live fish there, then fill in enough seawater so that the seawater level 9 is in contact with the lid 3, and then fill the cap 1 with seawater.
9.20 so that substantially no head space is generated in the space surrounded by the seawater shielding plate 5 and the inner wall of the aquarium 2. In other words, when a headspace occurs, the sea surface shakes during fish transport, causing stress to the fish. In addition, it is preferable that the lid 3 and cap 19.20 be securely fixed to the aquarium 2 so that the lid 3 and cap 19.20 do not come off or seawater leaks during transportation.
尚、キャップの形状は任意とすることができ、蓋とキャ
ップとが一体となったものや、蓋に接する海面の高さと
キ丁ツブに接する海面の高さとを一致させることもでき
る。The shape of the cap may be arbitrary, and the lid and cap may be integrated, or the height of the sea surface in contact with the lid may be made to match the height of the sea surface in contact with the kitchen pot.
次いでポンプ１０を作動させて、海水貯蔵部６内の海水
が海水遮蔽板５の下部に形成された海水排出孔７を通り
、海水遮蔽板５と濾過槽４の外壁の間に形成された空間
１１に海水を排出し、次いで濾過槽４の上部に形成され
た吸水孔８を通って濾過槽の中に入るようにする。濾過
槽４に入った海水は、例えばサラン繊維などでできたフ
ィルター１２．１２を通る際に、魚の糞が除去され、活
性炭、サンゴ材、セラミック、ゼオライ、トなどの充填
層１３を通り、ここでアンモニア等の有害成分を除去す
る。との充填層１３に特開昭６４−７１４２７号公報に
開示された好気性バクテリアを培養させておくこともで
きる。とのようにして浄化された海水は、′ａ過漕４の
下かろ抜きだされ、熱交換器１４にて魚の生育に好まし
い温度に温調整されるが、できるだけ生息水温よりも低
い温度に調整するのがよい。つまり、との温度にすると
海水中の酸Ｓ飽和量も高くたりさらに魚類の海水中の溶
存酸素の消費を少なくすることができるからである。次
に、海水は酸素供給装置１５に導入され、ここでエアレ
ーションにより消費された酸素が補給され、同時に気泡
により魚から排出される粘性物質などが除去される。と
のようにして魚の生育に適した条件に調整された海水は
、パイプ１６を通って、水槽２に導入されて循環される
。Next, the pump 10 is operated, and the seawater in the seawater storage section 6 passes through the seawater discharge hole 7 formed at the bottom of the seawater shielding plate 5, and the space formed between the seawater shielding plate 5 and the outer wall of the filtration tank 4. 11, and then enters the filter tank through a water absorption hole 8 formed in the upper part of the filter tank 4. When the seawater that has entered the filtration tank 4 passes through a filter 12.12 made of, for example, Saran fiber, fish excrement is removed, and then it passes through a packed layer 13 of activated carbon, coral wood, ceramic, zeolite, etc., and is then filtered here. Removes harmful components such as ammonia. It is also possible to culture the aerobic bacteria disclosed in Japanese Unexamined Patent Publication No. 64-71427 in the packed bed 13. The purified seawater is drawn out from the bottom of the tank 4, and the temperature is adjusted in the heat exchanger 14 to a temperature favorable for the growth of fish, but as much as possible, the temperature is adjusted to be lower than the water temperature in which the fish live. It is better to do so. In other words, if the temperature is set to , the amount of acid S saturation in the seawater will be high, and the consumption of dissolved oxygen in the seawater by fish can be reduced. Next, the seawater is introduced into the oxygen supply device 15, where consumed oxygen is replenished by aeration, and at the same time, viscous substances etc. discharged from the fish are removed by air bubbles. Seawater, which has been adjusted to conditions suitable for fish growth, is introduced into the aquarium 2 through a pipe 16 and circulated.
尚、パイプ１６を通って海水を水槽２に導入する際に、
海水貯Ｉｉｉ部６内の海水が一方向に環流するような流
れ、特に静止浮遊するような流れを形成するようにして
導入するのがよく、との際数箇所から導入することがで
きる。また、蓋３をすることより海水貯蔵部６内に光が
入ら？、： （？、；：る場合には、例えば水槽の外壁
に窓を設け、ここにランプ１７を設置して海水貯蔵部６
内を適度の明るさとするのがよい。例えば、水槽２の中
段に外部から最大５Ｗ１好ましくは２〜５Ｗのランプを
２ケ所設けるのが好ましい。又、第１図では海水遮蔽板
５を水槽２の底部に接するように形成し、海水遮蔽板５
の底部に近い部分に海水排出孔７を形成し、ロスドルを
水槽２の内壁と海水遮蔽板５との間のみに形成した例を
示したが、水槽２の下部に網目状のロスドル１８を一方
の端部が水槽２に接し、他方の端部が濾過槽４に接する
ように設置し、かつ海水遮蔽板５をロスドル上に設置し
て、海水遮蔽板５と濾過槽４との間にあるロスドルを海
水排出孔７として使用することもできる。In addition, when introducing seawater into the aquarium 2 through the pipe 16,
The seawater in the seawater storage section III 6 is preferably introduced so as to form a flow that circulates in one direction, especially a flow that appears to float still, and in this case, the seawater can be introduced from several locations. Also, does not light enter into the seawater storage unit 6 by covering the lid 3? , : (?, ;:), for example, a window is provided on the outer wall of the aquarium, a lamp 17 is installed here, and the seawater storage part 6 is opened.
It is best to have a moderate amount of brightness inside. For example, it is preferable to provide two external lamps of maximum 5W, preferably 2 to 5W, in the middle of the water tank 2. In addition, in FIG. 1, the seawater shielding plate 5 is formed so as to be in contact with the bottom of the aquarium 2, and the seawater shielding plate 5
An example is shown in which the seawater discharge hole 7 is formed near the bottom of the tank 2 and the rosdol is formed only between the inner wall of the tank 2 and the seawater shielding plate 5. The seawater shielding plate 5 is installed so that one end thereof is in contact with the aquarium 2 and the other end is in contact with the filtration tank 4, and the seawater shielding plate 5 is installed on the Rosdol, so that the seawater shielding plate 5 and the filtration tank 4 are located between the seawater shielding plate 5 and the filtration tank 4. Rosdol can also be used as the seawater discharge hole 7.
尚、ロスドル１８を用いると、海水貯蔵Ｂ６内に生じた
水不溶物をロスドル１８の下に閉じ込め、魚によって水
不溶物が海水貯蔵部６内に分散されるのを防止すること
ができる。In addition, by using the Rosdol 18, it is possible to confine water-insoluble substances generated in the seawater storage B6 under the Rosdol 18, and prevent the water-insoluble substances from being dispersed into the seawater storage part 6 by fish.
上記実施例では、水Ｗｉ２に蓋３がある態様について説
明したが、本発明では蓋を設けなくてもよい。In the above embodiment, an embodiment in which the water Wi2 has a lid 3 has been described, but in the present invention, the lid may not be provided.
本発明では、上記方法に種々の改良を加えることができ
る。例えば、水槽２の内壁や濾過槽４の外壁に網模様を
描くこともてきる。In the present invention, various improvements can be made to the above method. For example, a net pattern can be drawn on the inner wall of the aquarium 2 or the outer wall of the filtration tank 4.
なお、本発明で海水を使用する場合には、海水をそのま
ま使用することもできるが、予め濾過などによって清浄
化したものを使用するのがよい。In addition, when seawater is used in the present invention, it is possible to use seawater as it is, but it is preferable to use seawater that has been purified by filtration or the like in advance.
本発明で使用する水槽と濾過槽の形状は任意とすること
ができるが、内面に凸部の無いもの、例えば横断面が円
形、楕円形のように曲線となっているのがよい。Although the shape of the water tank and filter tank used in the present invention can be arbitrary, it is preferable that the inner surface has no convex portion, for example, the cross section is curved, such as circular or oval.
本発明の魚を生きたまま保つ方法によれば、魚の糞を効
率的に除去でき、魚にストレスを与えずかつ魚を生きた
まま長時間保持できる。従って、本発明の方法によれば
、特に漁場から消費地まで魚を生きたまま、効率よく輸
送することができる。According to the method of keeping fish alive according to the present invention, fish feces can be efficiently removed, and fish can be kept alive for a long time without stressing the fish. Therefore, according to the method of the present invention, it is possible to efficiently transport fish, especially alive, from fishing grounds to consumption areas.
又、本発明の装置によれば、濾過槽が水槽内に組み込ま
れているので装置自体をコンパクトにできるので、料理
店に設置することはもとり、特に魚を生きたまま輸送す
るのに好適である。Furthermore, according to the device of the present invention, since the filtration tank is built into the aquarium, the device itself can be made compact, so it is suitable not only for installation in restaurants, but also for transporting live fish. be.
よって、本発明の方法及び装置によれば、糞が海水中に
沈降する魚、例えばヒラメ、ソイ、タイ、ハマチ、アジ
等の魚を長期間生かしておくことができ、特にこれらの
魚を生きたままの輸送に好適である。Therefore, according to the method and apparatus of the present invention, fish whose feces settle in seawater, such as flounder, sea bass, sea bream, yellowtail, and horse mackerel, can be kept alive for a long period of time, and in particular, these fish can be kept alive for a long period of time. Suitable for transporting as is.
次に実施例により本発明を説明する。Next, the present invention will be explained with reference to Examples.
第１図に示す装置を用いて生きたヒラメ又はソイを２４
時間生育させた。つまり、内径１７０ｃｍ、高さ１１０
ｃｍの円筒形の水槽２の内部中央に内径５０ｃｍの濾過
槽４が設置され、その１．５ｃｍ外側にプラスチック又
はステンレスからなる海水遮蔽板５を濾過１４を囲むよ
うに設け、海水遮蔽板５と水槽２の内壁とで囲まれた空
間に海水貯蔵部６が形成されている。との海水貯蔵部６
の横断面はドーナツ状であり、ここに１．６ ｍ’の海
水を収容することができる。Using the device shown in Figure 1, live flounder or soy was harvested for 24 hours.
Grown for hours. In other words, the inner diameter is 170 cm and the height is 110 cm.
A filtration tank 4 with an inner diameter of 50 cm is installed in the center of a cylindrical aquarium 2 with a diameter of 1.5 cm, and a seawater shielding plate 5 made of plastic or stainless steel is provided 1.5cm outside of the filtration tank 4 to surround the filtration 14. A seawater storage section 6 is formed in a space surrounded by the inner wall of the water tank 2. Seawater storage part 6 with
It has a donut-shaped cross section and can accommodate 1.6 m' of seawater.
海水遮蔽板５の下部には、横１１７ｃｍ、縦７ｃｍの大
きさの海水排出孔７が形成されている。A seawater discharge hole 7 with a width of 117 cm and a length of 7 cm is formed in the lower part of the seawater shielding plate 5.
濾過槽４の上端部は鉄製の蓋３にほぼ接しており、横１
３ｃｍ、縦ＩＱｃｍの大きさの吸水孔６の上端が濾過槽
４の上端から１２Ｃｍ（海面９から３ｃｍ）のところに
形成されている。濾過槽４内には、魚の糞の除去を容易
にする為に２ｃｍ厚みのサラン繊維フィルター１２．１
２が設けられ、その下に活性炭とサンゴ材等が直径５０
ｃｍの濾過槽に高さ約６０ｃｍにわたって充填された充
填層１３が設けられ、充填材の漏れを防止するため：ニ
一番下に多孔質板が設けられている。海水貯蔵部６内に
生じた糞などの水不溶物を水槽２の下部に閉じ込め該水
不溶物が魚によって海水貯蔵部６内に分散されるのを防
止するために、水槽２の底から７．５ｃｍの所に網目状
のロスドル１８を設置した。また、水槽２の中段に２Ｗ
のランプを２ケ所設けた。The upper end of the filter tank 4 is almost in contact with the iron lid 3, and the horizontal 1
The upper end of the water absorption hole 6 having a size of 3 cm and a vertical IQ cm is formed at a distance of 12 cm from the upper end of the filtration tank 4 (3 cm from the sea level 9). Inside the filtration tank 4, a 2cm thick Saran fiber filter 12.1 is installed to facilitate the removal of fish excrement.
2 is provided, and activated carbon and coral material etc. are placed under it with a diameter of 50 mm.
A filling layer 13 filled to a height of about 60 cm is provided in a filtration tank of 1.5 cm, and a porous plate is provided at the bottom to prevent leakage of the filling material. In order to trap water-insoluble substances such as feces generated in the seawater storage part 6 in the lower part of the aquarium 2 and prevent the water-insoluble substances from being dispersed into the seawater storage part 6 by fish, A mesh-shaped Rosdol 18 was installed at a distance of .5 cm. In addition, there is a 2W in the middle of aquarium 2.
Two lamps were installed.
上記装置１の海水貯蔵部６に海水を入れ、次いでここに
生きたヒラメ２００匹（−匹の平均体重８００ ｇ）又
はソイ２５０匹（−匹の平均体重６００ｇ）を入れ、次
いで海水面９が蓋３に接するぐらい充分に海水を入れて
海水遮蔽板５と水槽２の内壁とで囲まれた空間に実質的
にヘッドスペースが生じないようにした。また、輸送中
に蓋３がはずれたり海水が漏れたりし？；いように、蓋
３を水槽２にしっかり固定した。Fill the seawater storage part 6 of the above device 1 with seawater, then put therein 200 live flounders (average weight of -fish 800 g) or 250 live sea bass (average weight of -fish 600g). Seawater is filled sufficiently to come into contact with the lid 3 so that substantially no head space is generated in the space surrounded by the seawater shielding plate 5 and the inner wall of the water tank 2. Also, what happens if the lid 3 comes off or seawater leaks during transportation? ;The lid 3 was firmly fixed to the aquarium 2.
次いでポンプ１０を作動させて、海水遮蔽板５の下部に
形成された海水排出孔７に排出し、次いで海水遮蔽板５
と濾過槽４との間に形成された空間１１に海水を入れ、
海水を濾過槽４の上部に形成された吸水孔８を通して濾
過槽の中に入れ、フィルター１２．１２で魚の糞を除去
し、充填層１３でアンモニア等の有害成分を除去した。Next, the pump 10 is operated to discharge seawater to the seawater discharge hole 7 formed at the bottom of the seawater shielding plate 5.
Fill the space 11 formed between the and the filter tank 4 with seawater,
Seawater was introduced into the filtration tank through a water absorption hole 8 formed in the upper part of the filtration tank 4, fish excrement was removed by the filters 12 and 12, and harmful components such as ammonia were removed by the packed bed 13.
とのようにして浄化した海水を濾過槽４の下から抜きだ
し、熱交換器１４にてヒラメ又はソイの生育に好ましい
水温は１０〜２０℃であるが下限の１０℃に調整した。The purified seawater was extracted from the bottom of the filter tank 4, and the water temperature was adjusted to the lower limit of 10°C, which is preferably 10 to 20°C for the growth of flounder or soy, using a heat exchanger 14.
次に、海水を酸素供給装置１５に導入し、ここでエアレ
ーションにより消費された酸素を補給した。とのように
して魚の生育に適した条件に調整された海水を、パイプ
１６を通して水槽２に導入して循環した。尚、パイプ１
６を通って、海水を水槽２に導入する際：二、海水貯蔵
部６内の海水が一方向に環流するような流を形成するよ
うにして導入し、流速３〜４ｃｍ／秒の循回流を形成し
た。Next, seawater was introduced into the oxygen supply device 15, where oxygen consumed by aeration was replenished. Seawater adjusted to conditions suitable for fish growth as described above was introduced into the aquarium 2 through the pipe 16 and circulated. Furthermore, pipe 1
When introducing seawater into the aquarium 2 through 6: 2. Introduce the seawater in the seawater storage part 6 to form a flow that circulates in one direction, with a circulating flow at a flow rate of 3 to 4 cm/sec. was formed.
とのようにして魚を２４時間生育させたところ、ヒラメ
及びソイとも死亡率０であった。When the fish were grown for 24 hours as described above, there was no mortality rate for both flounder and soy.
第１図は、本発明の魚を生きたまま保つための装置の概
略断面図であり、第２図はその斜視図である。
図中、２は水槽、３は蓋、４は濾過槽、５は海水遮蔽板
、６は海水貯蔵部、７は海水排出孔、８は吸水孔、１２
はフィルター、１３は充填層、１４は熱交換器、１５は
酸素供給装置である。FIG. 1 is a schematic sectional view of the device for keeping fish alive according to the present invention, and FIG. 2 is a perspective view thereof. In the figure, 2 is a water tank, 3 is a lid, 4 is a filter tank, 5 is a seawater shielding plate, 6 is a seawater storage part, 7 is a seawater discharge hole, 8 is a water absorption hole, 12
1 is a filter, 13 is a packed bed, 14 is a heat exchanger, and 15 is an oxygen supply device.
Claims (2)
に濾過槽を囲むように海水遮蔽板が設けられ、海水遮蔽
板と水槽の内壁とで囲まれた空間に充填された海水に生
きた魚を収容し、海水を海水遮蔽板の下部に設けた海水
排出孔から海水遮蔽板と濾過槽との間に形成された空間
に排出し、次いで濾過槽の上部に設けた吸水孔から濾過
槽に導入して海水を濾過して水槽に循環することを特徴
とする魚を生きたまま保つ方法。(1) A filtration tank is installed in the center of the aquarium, a seawater shielding plate is provided outside the filtration tank to surround the filtration tank, and seawater fills the space surrounded by the seawater shielding plate and the inner wall of the aquarium. Live fish are housed in the tank, and the seawater is discharged from the seawater discharge hole provided at the bottom of the seawater shielding plate into the space formed between the seawater shielding plate and the filter tank, and then the seawater is discharged into the space formed between the seawater shielding plate and the filter tank. A method for keeping fish alive, which is characterized by introducing seawater into a filtration tank, filtering the seawater, and then circulating it into the aquarium.
過槽の外側に濾過槽を囲むように設けられた海水遮蔽板
を備え、海水遮蔽板と水槽の内壁とで囲まれた空間に生
きた魚を収容するための海水貯蔵部を形成し、海水遮蔽
板の下部に海水排出孔が設けられ、かつ濾過槽の上部に
吸水孔が設けられ、さらに海水貯蔵部の海水を海水排出
孔、海水遮蔽板と濾過槽との間及び吸水孔を通り、濾過
槽内を通って海水貯蔵部に循環するための循環装置を備
えたことを特徴とする魚を生きたまま保つための装置。(2) An aquarium, comprising a filtration tank provided in the center of the aquarium, and a seawater shielding plate provided outside the filtration tank to surround the filtration tank, and surrounded by the seawater shielding plate and the inner wall of the aquarium. A seawater storage part for storing live fish is formed in the space, and a seawater discharge hole is provided at the bottom of the seawater shielding plate, and a water absorption hole is provided at the top of the filtration tank. A method for keeping fish alive, characterized by comprising a circulation device for circulating seawater through the discharge hole, between the seawater shielding plate and the filter tank, through the water absorption hole, and through the filter tank to the seawater storage section. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP976090A JPH03254618A (en) | 1990-01-19 | 1990-01-19 | Method for keeping fish in living state and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP976090A JPH03254618A (en) | 1990-01-19 | 1990-01-19 | Method for keeping fish in living state and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03254618A true JPH03254618A (en) | 1991-11-13 |
Family
ID=11729235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP976090A Pending JPH03254618A (en) | 1990-01-19 | 1990-01-19 | Method for keeping fish in living state and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03254618A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111913B2 (en) * | 1983-03-31 | 1986-04-05 | Tokyo Shibaura Electric Co | |
| JPS6471427A (en) * | 1987-09-10 | 1989-03-16 | Seinan Jidosha Kogyo Kk | Apparatus for keeping squid in live state |
-
1990
- 1990-01-19 JP JP976090A patent/JPH03254618A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111913B2 (en) * | 1983-03-31 | 1986-04-05 | Tokyo Shibaura Electric Co | |
| JPS6471427A (en) * | 1987-09-10 | 1989-03-16 | Seinan Jidosha Kogyo Kk | Apparatus for keeping squid in live state |
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