JPH044831A - Method for increasing live survival rate of fishes - Google Patents
Method for increasing live survival rate of fishesInfo
- Publication number
- JPH044831A JPH044831A JP2104424A JP10442490A JPH044831A JP H044831 A JPH044831 A JP H044831A JP 2104424 A JP2104424 A JP 2104424A JP 10442490 A JP10442490 A JP 10442490A JP H044831 A JPH044831 A JP H044831A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fish
- fishes
- survival rate
- pipe
- 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
- 238000000034 method Methods 0.000 title claims description 3
- 241000251468 Actinopterygii Species 0.000 title abstract description 19
- 230000004083 survival effect Effects 0.000 title description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 239000013505 freshwater Substances 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 235000014653 Carica parviflora Nutrition 0.000 claims description 6
- 241000243321 Cnidaria Species 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 5
- -1 coral stone Chemical compound 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 241000242732 Scleractinia Species 0.000 abstract 2
- 235000015170 shellfish Nutrition 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 238000009372 pisciculture Methods 0.000 description 5
- 238000003916 acid precipitation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000131739 Oncorhynchus masou rhodurus Species 0.000 description 1
- 241001327682 Oncorhynchus mykiss irideus Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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、水質の改善並び魚類の生存率を高めるための
方法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 for improving water quality and increasing the survival rate of fish.
清流に生息する淡水魚を、従来の貯水式の循環水槽で活
かす場合、濾材に、サンゴ石等、炭酸カルシウムが溶け
だす物質が使用されているが、前記の魚に必要な水質が
低下するために、生存させる時間は限られている。When freshwater fish that live in clear streams are kept in conventional circulation tanks, coral stones and other substances that dissolve calcium carbonate are used as filter media, but this reduces the water quality necessary for the fish. , the time to survive is limited.
また、魚類の養殖地等においては、養殖に可能な水は限
られている。また、世界的な規模で酸性雨による水質の
悪化が問題になっており湖等においては石灰などを散布
しているが魚類が生存できる水質を常時維持できないた
め、魚類の生存率が低下している。In addition, in fish farming areas, water that can be used for aquaculture is limited. In addition, the deterioration of water quality due to acid rain has become a problem on a global scale, and although lime and other substances are sprayed in lakes, it is not possible to maintain water quality that allows fish to survive at all times, resulting in a decline in the survival rate of fish. There is.
本発明は、魚類の生存率を高めるために、前記問題点を
克服することを目的とする。The present invention aims to overcome the above-mentioned problems in order to increase the survival rate of fish.
前記問題点を解決すべく、種々研究を重ねた結果、淡水
又は海水とサンゴ石等炭酸カルシウムを含んだ物質との
一定量以上の摩擦により、水質（この場ＰＨ（水素イオ
ン濃度）及びＤＯ（溶ぞん酸素量））を改善するために
必要な量の炭酸カルシウムを常時水中に溶かし込むこと
により上記の目的を達成し得ることを見出した。前記一
定量以上の摩擦とは、装置（第１図）の場合水の流量１
００００ｃｃ／ｍに対し、パイプ等（１）内の断面積（
第１図（ａ）−２（ａ）、１５０ｃｍ２以内を目安とす
る。また断面積（第１図（ａ）−２（ａ））は、流量の
変化に比例させる。なお、本発明の原理において、流量
速度を速める並び爪む込むサンゴ石等炭酸カルシウムを
含んだ物質の量を多くするほど、より効果を上げられる
。また、この装置（第１図）の取り付け位置は第２図−
Ａの他にも第２図−Ｂ等が考えられる（この場合、第３
図の装置等を設置する）が、水をポンプで押し上げる際
、装置（第１図）による抵抗を受けるため不経済である
。また、本発明の原理を応用した水槽や濾過槽等は本発
明の原理と同様に適用されるものである。In order to solve the above-mentioned problems, we have conducted various studies and found that friction between freshwater or seawater and substances containing calcium carbonate, such as coral stones, causes water quality (in-situ PH (hydrogen ion concentration) and DO ( It has been found that the above object can be achieved by constantly dissolving calcium carbonate in water in an amount necessary to improve the amount of dissolved oxygen. In the case of the device (Fig. 1), the above-mentioned friction of a certain amount or more means a water flow rate of 1
0000cc/m, the cross-sectional area inside the pipe, etc. (1) (
As shown in Figure 1(a)-2(a), the area should be within 150cm2. Further, the cross-sectional area (FIGS. 1(a)-2(a)) is made proportional to the change in flow rate. In addition, according to the principle of the present invention, the effect can be improved as the flow rate is increased and the amount of calcium carbonate-containing substances such as embedding coral stones is increased. Also, the mounting position of this device (Fig. 1) is shown in Fig. 2-
In addition to A, Figure 2-B etc. can be considered (in this case, the third
However, when pumping water up, it is uneconomical because it encounters resistance from the device (see Figure 1). Further, the principles of the present invention can be applied to water tanks, filter tanks, etc. in the same manner as the principles of the present invention.
本発明の原理を利用すれば、淡水又は海水で清流に生息
する淡水魚を長時間生存させることが可能になったため
、遠距離でも、活魚の状態で海水魚と共に輸送及び販売
等が可能になる。また、魚類の養殖地等においても、養
殖に可能な水は限られているが、本発明の原理を利用す
れば、生存率を高めると共に、従来養殖されている場所
以外でも、養殖が可能になる。また、本発明の原理を利
用すれば世界的に問題になっている酸性雨等による悪化
した水質を改善し、魚類の生存率を高めることが可能に
なる。By utilizing the principles of the present invention, it has become possible to keep freshwater fish that live in clear streams in freshwater or seawater for a long time, making it possible to transport and sell live fish together with seawater fish, even over long distances. In addition, the amount of water that can be used for fish farming is limited in fish farming areas, but by using the principles of the present invention, survival rates can be increased and fish farming can be carried out in areas other than conventional fish farming locations. Become. Furthermore, by utilizing the principles of the present invention, it becomes possible to improve water quality deteriorated due to acid rain, which is a worldwide problem, and increase the survival rate of fish.
次に、本発明の実施例を説明する。まず、従来の貯水式
の循環水槽（第２図）に２０００００ｃｃのカルキを抜
いた水道水を入れ、エアレーションをし、水温２０℃に
設定し、２００００ｃｃ／ｍのポンプ（７）を始動させ
、その中に、清流に生息する淡水魚（アマゴ５ｋｇ、ニ
ジマス２ｋｇ、イワナ３ｋｇ）を入れた結果、１時間以
内に４割の魚が死亡し、６時間以内に全部の魚が死亡し
た。次に、前記と同様の設備（第２図）に本発明の原理
を利用した装置（この場合、断面積（第１図（ａ）−２
（ａ））を２００ｃｍ２にし、直経１ｃｍ粒程度のサン
ゴ石を深さ１０ｃｍ詰めた）を取り付け、前記と同量の
魚を入れた結果、１ヶ月経過しても９割以上の魚が生存
した。その設備と同様にし、淡水を海水に換えても、前
記と同様の結果が得られた。つまり、本発明の原理を利
用した装置による清流に生息する淡水魚の生存率を高め
ることが確認された。Next, examples of the present invention will be described. First, pour 200,000 cc of descaled tap water into a conventional water storage type circulation tank (Fig. 2), perform aeration, set the water temperature to 20°C, start the 20,000 cc/m pump (7), and When freshwater fish that live in clear streams (5 kg of amago, 2 kg of rainbow trout, and 3 kg of char) were placed inside, 40% of the fish died within one hour, and all of the fish died within six hours. Next, a device using the principles of the present invention (in this case, the cross-sectional area (Fig. 1 (a) - 2
(a)) was made to be 200 cm2, coral stones of about 1 cm diameter were filled to a depth of 10 cm), and the same amount of fish as above was put in. As a result, more than 90% of the fish survived even after one month. did. Even when using the same equipment and replacing fresh water with seawater, the same results as above were obtained. In other words, it has been confirmed that the survival rate of freshwater fish living in clear streams can be increased by using a device using the principles of the present invention.
第１図は本発明の原理を応用した装置、第１図（ａ）は
第１図の断面図、第２図は循環水槽、第３図は第２図−
Ｂ等に取り付けるための装置１…パイプ等、２…サンゴ
石等炭酸カルシウムを含んだ物質、２（ａ）…パイプ等
（１）内の断面図、３…網目状の板等、４…異形ソケッ
ト、５…冷却機、６…濾材、７…ポンプ、８…水槽、９
…濾過槽、１０…水、（また、矢印は流水方向を示す）Figure 1 is a device applying the principle of the present invention, Figure 1 (a) is a sectional view of Figure 1, Figure 2 is a circulating water tank, and Figure 3 is Figure 2-
Device for attaching to B etc. 1...pipe etc., 2...substance containing calcium carbonate such as coral stone, 2(a)...cross-sectional view of pipe etc. (1), 3...mesh plate etc., 4...irregular shape Socket, 5... Cooler, 6... Filter medium, 7... Pump, 8... Water tank, 9
...Filter tank, 10...Water, (Also, the arrow indicates the direction of water flow)
Claims (1)
んだ物質との間に、一定量以上の摩擦を発生させ、水中
に炭酸カルシウムを溶かし込む方法。前記一定量以上の
摩擦とは、第１図の装置の場合水の流量１０，０００ｃ
ｃ／ｍに対し、パイプ等（１）内の断面積（第１図（ａ
）−２（ａ））１５０ｃｍ＾２以内を目安とする。また
、断面積（第１図（ａ）−２（ａ））は、流量の変化に
比例させる。(1) A method in which a certain amount of friction is generated between freshwater or seawater and a substance containing calcium carbonate, such as coral stone, to dissolve calcium carbonate into the water. In the case of the device shown in FIG.
c/m, the cross-sectional area inside the pipe, etc. (1) (Fig. 1 (a)
)-2(a)) The approximate distance is within 150cm^2. Further, the cross-sectional area (FIGS. 1(a)-2(a)) is made proportional to the change in flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2104424A JPH044831A (en) | 1990-04-20 | 1990-04-20 | Method for increasing live survival rate of fishes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2104424A JPH044831A (en) | 1990-04-20 | 1990-04-20 | Method for increasing live survival rate of fishes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044831A true JPH044831A (en) | 1992-01-09 |
Family
ID=14380313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2104424A Pending JPH044831A (en) | 1990-04-20 | 1990-04-20 | Method for increasing live survival rate of fishes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240001509A1 (en) * | 2022-07-01 | 2024-01-04 | The Boeing Company | Damage tolerant cavitation nozzle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5099896A (en) * | 1973-12-29 | 1975-08-07 | ||
| JPS63237722A (en) * | 1987-03-25 | 1988-10-04 | 北辰造機有限会社 | Living fish and shellfish water tank |
| JPS6471428A (en) * | 1987-09-10 | 1989-03-16 | Seinan Jidosha Kogyo Kk | Filter device for live fish tank |
-
1990
- 1990-04-20 JP JP2104424A patent/JPH044831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5099896A (en) * | 1973-12-29 | 1975-08-07 | ||
| JPS63237722A (en) * | 1987-03-25 | 1988-10-04 | 北辰造機有限会社 | Living fish and shellfish water tank |
| JPS6471428A (en) * | 1987-09-10 | 1989-03-16 | Seinan Jidosha Kogyo Kk | Filter device for live fish tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240001509A1 (en) * | 2022-07-01 | 2024-01-04 | The Boeing Company | Damage tolerant cavitation nozzle |
| US12466028B2 (en) * | 2022-07-01 | 2025-11-11 | The Boeing Company | Damage tolerant cavitation nozzle |
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