JPH0763295B2 - How to prevent seafood from swimming - Google Patents
How to prevent seafood from swimmingInfo
- Publication number
- JPH0763295B2 JPH0763295B2 JP62008552A JP855287A JPH0763295B2 JP H0763295 B2 JPH0763295 B2 JP H0763295B2 JP 62008552 A JP62008552 A JP 62008552A JP 855287 A JP855287 A JP 855287A JP H0763295 B2 JPH0763295 B2 JP H0763295B2
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- Prior art keywords
- seafood
- value
- electric field
- swimming
- field strength
- Prior art date
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、水中における魚介類の所定域外への遊泳を
遮断する魚介類の遊泳遮断方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for blocking the swimming of seafood that blocks the swimming of seafood outside a predetermined area in water.
〔従来の技術〕 一般に、水力発電所のように，ダムにより水をせき止め
て給水口よりせき止めた水を取り込む水力設備や、養殖
用の大規模な水槽に海水を給水する水力設備などにおい
て、給水口に養殖中の特定の魚介類が遊泳すると、給水
ラインに詰まりが生じて水力設備の各部の異常を招き、
設備の全機能を停止させるおそれがあるため、このよう
な水力設備の給水口への魚介類の遊泳を防止する手法と
して、従来給水口の近傍に網を配設し、当該網により所
定域外である給水口の近傍への魚介類の遊泳を遮断する
ことが考えられている。[Prior Art] Generally, in a hydropower plant such as a hydroelectric power plant that takes in water dammed by dam dams and dams from the water supply port, or a hydropower plant that supplies seawater to a large-scale aquaculture tank, When a certain seafood under cultivation swims in the mouth, the water supply line becomes clogged, causing abnormalities in each part of the hydropower plant,
Since there is a risk of stopping all the functions of the equipment, as a method of preventing swimming of seafood to the water supply port of such a hydropower facility, a net has been placed near the water supply port in the past and outside the prescribed area by the net. It is considered to block the swimming of seafood near a certain water supply port.
しかし、この場合、魚介類の遮断に網を使用すると、網
の保守，点検に多大な費用と労力を要し、非常に手間が
かかるという欠点がある。However, in this case, if the net is used to shut off the seafood, there is a drawback that it requires a great deal of cost and labor for the maintenance and inspection of the net, which is very troublesome.
そこで、本件出願人において、つぎのような遮断方法を
提案している。Therefore, the applicant of the present application has proposed the following blocking method.
すなわち、水中の所定域外の近辺に複数の電極列を並行
に配設し、各電極列に電圧を印加して各電極列間に所定
の電界強度の領域を形成し、各領域により魚介類の所定
域外への遊泳を遮断している。That is, a plurality of electrode rows are arranged in parallel near the outside of a predetermined area in water, a voltage is applied to each electrode row to form an area of a predetermined electric field strength between each electrode row, and each area causes It blocks swimming outside the designated area.
しかし、この場合、同じ電界強度でも，魚介類の体長に
よつて魚介類の受ける電気的刺激が異なり、体長の長い
魚介類が強い電気的刺激を受けて痺れや麻痺などの反応
を示すような電界強度であつても、体長の短い魚介類は
弱い電気的刺激しか受けないため前記各電極列間を容易
に遊泳して所定域外へ遊泳してしまい、逆に体長の短い
魚介類が強い電気的刺激を受けるような電界強度である
と、体長の長い魚介類はさらに強い電気的刺激を受けて
死滅してしまい、遮断対象である魚介類の遊泳を確実に
遮断できるような電界強度の設定が非常に困難であると
いう問題点がある。However, in this case, even if the electric field strength is the same, the electrical stimulation received by the seafood differs depending on the body length of the seafood, and the long-body seafood shows a reaction such as numbness or paralysis due to the strong electrical stimulation. Even if the electric field strength is short, seafood with a short body length receives only a weak electric stimulus, so that it easily swims between the electrode rows and swims outside the predetermined range. If the electric field strength is such that it is subject to dynamic stimulation, long-length seafood will be killed by stronger electrical stimulation, and the electric field strength will be set so that the swimming of the target seafood can be reliably blocked. There is a problem that it is very difficult.
そこで、この発明では、遮断対象である特定の魚介類の
遊泳を確実に遮断できるようにすることを技術的課題と
する。Therefore, it is a technical object of the present invention to reliably block the swimming of a specific seafood to be blocked.
この発明は、前記の点に留意してなされたものであり、
水中に複数の電極列を並行に配設し、前記各電極列に電
圧を印加して前記各電極列間に所定の電界強度の領域を
形成し、前記各領域により魚介類の所定域外への遊泳を
遮断する魚介類の遊泳遮断方法において、前記各領域の
電界強度と，遮断対象である魚介類の体長との積の比の
関係が、1:（２ないし３）：（４以上）の条件を満足す
る少なくとも３種類の電界強度のうち、２種類の組み合
わせを含むように前記各領域を形成することを特徴とす
る魚介類の遊泳遮断方法である。The present invention has been made with the above points in mind,
A plurality of electrode rows are arranged in parallel in water, a voltage is applied to each of the electrode rows to form a region having a predetermined electric field strength between the electrode columns, and each region causes the seafood to move outside the predetermined region. In the method for blocking swimming of seafood for blocking swimming, the relationship between the product of the electric field strength of each region and the length of the seafood to be blocked is 1: (2 to 3): (4 or more). A method for blocking swimming of seafood, characterized in that each region is formed so as to include a combination of two types among at least three types of electric field strengths that satisfy the conditions.
したがつて、この発明によると、各電極列間の電界強度
を決定するパラメータとして、電界強度Ｅ〔V/cm〕と遮
断対象である魚介類の体長Ｌ〔cm〕との積Ｅ・Ｌが導入
され、積の比の関係が1:（２ないし３）：（４以上）の
条件を満足する少なくとも３種類の電界強度のうち、２
種類の組み合わせを含むように各領域が形成され、遮断
対象である魚介類に驚き，痺れ，麻痺程度の感電反応を
示す電気的刺激を与えることが可能となり、魚介類の硬
直や致死などを招くことなく、魚介類の遊泳が確実に遮
断されることになる。Therefore, according to the present invention, the product E · L of the electric field strength E [V / cm] and the body length L [cm] of the seafood to be cut off is used as a parameter for determining the electric field strength between the electrode rows. Of the at least three types of electric field strengths that are introduced and satisfy the condition that the ratio of products is 1: (2 to 3) :( 4 or more), 2
Each region is formed so as to include a combination of types, and it becomes possible to give an electrical stimulus to the target fish and shellfish to be electrocuted to the extent that they are surprised, numb, or paralyzed, leading to rigidity or lethality of the fish or shellfish. The swimming of the seafood will be blocked without fail.
つぎに、この発明を、その実施例を示した図面とともに
詳細に説明する。Next, the present invention will be described in detail with reference to the drawings showing the embodiments thereof.
（実施例１） まず、実施例１を示した第１図ないし第３図について説
明する。Example 1 First, FIGS. 1 to 3 showing Example 1 will be described.
第１図において、（1a），（1b），（1c），（1d）は水
中に並行に配設された４個の電極列であり、それぞれ複
数個の棒状導電電極が等間隔に配列されて構成され、各
電極列（1a）〜（1d）ごとの各導電電極が図外の接続体
により電気的に接続されている。（2a），（2b），（2
c）は３個の電源であり、電極列（1a）を共通電極とし
て、各電源（2a）〜（2c）により他の各電極列（1b）〜
（1d）にたとえば直流電圧が印加され、各電極列（1a）
〜（1d）間それぞれに所定の電界強度の電気スクリーン
領域が形成される。In FIG. 1, (1a), (1b), (1c), and (1d) are four electrode rows arranged in parallel in water, and a plurality of rod-shaped conductive electrodes are arranged at equal intervals. The conductive electrodes of each of the electrode rows (1a) to (1d) are electrically connected by a connection body (not shown). (2a), (2b), (2
c) is three power supplies, the electrode array (1a) as a common electrode, each power supply (2a) ~ (2c) other electrode array (1b) ~
For example, a DC voltage is applied to (1d) and each electrode array (1a)
Between (1d) to (1d), an electric screen region having a predetermined electric field strength is formed.
ところで、各電極列（1a）〜（1d）間の電界強度を決定
するパラメータとして、電界強度Ｅ（V/cm〕と遮断対象
である魚介類の体長Ｌ〔cm〕との積Ｅ・Ｌ〔Ｖ〕を導入
し、以下のようにして積Ｅ・Ｌの最適値を求めた。By the way, as a parameter for determining the electric field strength between the electrode rows (1a) to (1d), the product E · L [of the electric field strength E (V / cm] and the body length L [cm] of the fish or shellfish to be cut off is calculated. V] was introduced and the optimum value of the product E · L was obtained as follows.
すなわち、第２図に示すように、水を満たした容器
（３）内の両端部に平行に２枚の電極（4a），（4b）を
配設し、両電極（4a），（4b）に電源（５）により直流
電圧を印加し、容器（３）内に各種の体長の魚介類
（６）を入れ、両電極（4a），（4b）間の電界強度Ｅと
魚介類（６）の体長Ｌとの積Ｅ・Ｌがどれくらいの値に
なつたときに，魚介類（６）がどのような反応を示すか
を調べたところ、遮断対象である魚介類（６）を“あ
ゆ”とすると、第３図に示す体長Ｌと電界強度Ｅとの関
係図中の曲線Ａの左側の範囲で驚く程度の軽微な反応
を示し、同図中の曲線Ａと曲線Ｂとの間の範囲で痺れ
を示し、同図中の曲線Ｂと曲線Ｃとの間の範囲で麻痺
し、同図中の曲線Ｃの右側の範囲で致死状態となり、
各曲線A,B,Cは、それぞれ積Ｅ・Ｌが1.0〔Ｖ〕,3.0
〔Ｖ〕,30〔Ｖ〕にほぼ近似する。That is, as shown in FIG. 2, two electrodes (4a) and (4b) are arranged in parallel at both ends of a container (3) filled with water, and both electrodes (4a) and (4b) are arranged. A DC voltage is applied to the container by a power source (5), seafood (6) of various body lengths is placed in the container (3), and the electric field intensity E between both electrodes (4a) and (4b) and the seafood (6) When the product E · L of the fish's body length L reached a value, the reaction of the seafood (6) was examined. Then, a surprisingly slight reaction is exhibited in the range on the left side of the curve A in the relationship diagram between the body length L and the electric field strength E shown in FIG. 3, and the range between the curve A and the curve B in the figure is shown. Shows numbness, paralyzes in the range between the curve B and the curve C in the figure, and becomes lethal in the range on the right side of the curve C in the figure.
Each curve A, B, C has a product E · L of 1.0 [V], 3.0
It is approximated to [V] and 30 [V].
したがつて、前記した第１図の各電極列（1a）〜（1d）
間に、Ｅ・Ｌの値がそれぞれ前記した第３図中の範囲
，，内の値になるように、各電源（2a）〜（2c）
の印加電圧を制御することにより、遮断対象魚介類とし
てのあゆが、仮死，致死状態に至ることなく，効果的に
あゆの所定域外への遊泳を遮断することができる。Therefore, the electrode rows (1a) to (1d) shown in FIG.
In between, each power supply (2a) ~ (2c), so that the value of E · L becomes the value within the range ,, in the above-mentioned FIG. 3, respectively.
By controlling the applied voltage of Ayu, it is possible to effectively block Ayu from swimming outside the predetermined range without causing asphyxia or lethality as the seafood to be shut off.
ところで、たとえば電極列（1a）〜（1d）間のE1・Ｌの
値を前記範囲内の0.5〔Ｖ〕，電極列（1b），（1c）
間のE2・Ｌの値を前記範囲内の1.5〔Ｖ〕，電極列（1
c），（1d）間のE3・Ｌの値を前記範囲内の10〔Ｖ〕
にするためには、あゆの体長Ｌを10〔cm〕，電極列（1
a），（1b）間，電極列（1b），（1c）間，電極列（1
c），（1d）間の距離X1,X2,X3をそれぞれX1＝200〔c
m〕,X2＝150〔cm〕,X3＝100〔cm〕とすると、電源（2
a），（2b），（2c）のそれぞれの印加電圧V1,V2,V3は
それぞれ、 とすればよい。By the way, for example, the value of E 1 · L between the electrode rows (1a) to (1d) is 0.5 [V] within the above range, the electrode rows (1b), (1c)
The value of E 2 · L between is 1.5 [V] within the above range, and the electrode array (1
The value of E 3 · L between c) and (1d) is 10 [V] within the above range.
In order to make the body length L of the sweetfish 10 [cm], the electrode array (1
a), (1b), electrode rows (1b), (1c), electrode row (1
The distances X 1 , X 2 , X 3 between c) and (1d) are X 1 = 200 [c
m], X 2 = 150 [cm], X 3 = 100 [cm], the power source (2
Applied voltages V 1 , V 2 and V 3 of a), (2b) and (2c) are And it is sufficient.
このとき、電極列（1a），（1b）間のE1・Ｌの値（＝0.
5V），電極列（1b），（1c）間のE2・Ｌの値（＝1.5
V），電極列（1c），（1d）間のE3・Ｌの値（＝10V）の
比の関係は、E1・Ｌの値を基準とすると、1:3:20とな
る。At this time, the value of E 1 · L between the electrode rows (1a) and (1b) (= 0.
5V), the electrode array (1b), (1c) the value of E 2 · L between (= 1.5
V), the electrode rows (1c), (1d), the ratio relationship of the E 3 · L value (= 10V) is 1: 3: 20 with the E 1 · L value as the reference.
（実施例２） つぎに、実施例２を示した第４図について説明する。Example 2 Next, FIG. 4 showing Example 2 will be described.
実施例２において適用する遮断装置の概略構成は、前記
した第１図と同様であり、実施例１と異なる点は、遮断
対象魚介類を“まだい”にした点であり、まだいに対し
て前記した第２図に示す装置と同じものを用い、まだい
の体長Ｌと電界強度Ｅとの関係を調べたところ、第４図
に示すようになつた。The schematic configuration of the shutoff device applied in the second embodiment is the same as that in FIG. 1 described above, and the difference from the first embodiment is that the seafood to be shut off is “still”. Then, the same apparatus as shown in FIG. 2 was used, and the relationship between the body length L and the electric field strength E was examined, and the result was as shown in FIG.
すなわち、第４図に示す体長Ｌと電界強度Ｅとの関係図
中の曲線Ｄの左側の範囲で驚く程度の軽微な反応を示
し、同図中の曲線Ｄと曲線Ｆとの間の範囲で痺れを示
し、同図中の曲線Ｆの曲線Ｇとの間で範囲で麻痺し、
同図中の曲線Ｇの右側の範囲で致死状態となり、各曲
線D,F,Gは、それぞれ積Ｅ・Ｌが0.7〔Ｖ〕,1.5〔Ｖ〕,
3.0〔Ｖ〕にほぼ近似する。That is, a surprisingly slight reaction is exhibited in the range on the left side of the curve D in the relationship diagram between the body length L and the electric field strength E shown in FIG. 4, and in the range between the curve D and the curve F in the figure. Shows numbness and is paralyzed in the range between the curve F and the curve G in the figure,
In the range on the right side of the curve G in the figure, the state is lethal, and the curves E, L, and G have product E and L of 0.7 [V], 1.5 [V], respectively.
It is close to 3.0 [V].
したがつて、前記した第１図の各電極列（1a）〜（1d）
間に、Ｅ・Ｌの値がそれぞれ前記した第４図中の範囲
，，内の値になるように、各電源（2a）〜（2c）
の印加電圧を制御することにより、遮断対象魚介類とし
てのまだいが、仮死，致死状態に至ることなく，効果的
にまだいの所定域外への遊泳を遮断することができる。Therefore, the electrode rows (1a) to (1d) shown in FIG.
In between, each power supply (2a)-(2c) so that the value of E and L becomes the value within the range ,, in the above-mentioned FIG. 4, respectively.
By controlling the voltage applied to the fish, it is possible to effectively block the swimming outside the predetermined area without causing asphyxia or lethality as the fish to be blocked.
ところで、たとえば電極列（1a），（1b）間のE4・Ｌの
値を前記範囲内の0.5〔Ｖ〕，電極列（1b），（1c）
間のE5・Ｌの値を前記範囲内の1.0〔Ｖ〕，電極列（1
c），（1d）間のE6・Ｌの値を前記範囲内の2.0〔Ｖ〕
にするためには、まだいの体長Ｌを５〔cm〕，電極列
（1a），（1b）間，電極列（1b），（1c）間，電極列
（1c），（1d）間の距離X1,X2,X3をそれぞれX1＝200〔c
m〕,X2＝150〔cm〕,X3＝100〔cm〕とすると、電源（2
a），（2b），（2c）のそれぞれの印加電圧V4,V5,V6は
それぞれ、 とすればよい。By the way, for example, the value of E 4 · L between the electrode rows (1a), (1b) is 0.5 [V] within the above range, the electrode rows (1b), (1c)
The value of E 5 · L between is 1.0 [V] within the above range, and the electrode array (1
The value of E 6 · L between c) and (1d) is 2.0 [V] within the above range.
In order to make the length of the body still 5 [cm], between the electrode rows (1a) and (1b), between the electrode rows (1b) and (1c), between the electrode rows (1c) and (1d) Set the distances X 1 , X 2 and X 3 to X 1 = 200 [c
m], X 2 = 150 [cm], X 3 = 100 [cm], the power source (2
The applied voltages V 4 , V 5 and V 6 of a), (2b) and (2c) are And it is sufficient.
このとき、電極列（1a），（1b）間のE4・Ｌの値（＝0.
5V），電極列（1b），（1c）間のE5・Ｌの値（＝10
V），電極列（1c），（1d）間のE6・Ｌの値（＝2.0V）
の比の関係は、E4・Ｌの値を基準とすると、1:2:4とな
る。At this time, the value of E 4 · L between the electrode rows (1a) and (1b) (= 0.
5V), electrode row (1b), (1c) E 5 · L value (= 10
V), the electrode array (1c), (1d) the value of E 6 · L between (= 2.0 V)
The relationship of the ratio is 1: 2: 4 with the value of E 4 · L as the standard.
（実施例３） つぎに、実施例３を示した第５図について説明する。Example 3 Next, FIG. 5 showing Example 3 will be described.
実施例３において適用する遮断装置の概略構成は、前記
した実施例２と同じく第１図と同様であり、実施例１と
異なる点は、遮断対象魚介類を“ひらめ”および“かれ
い”にした点であり、ひらめおよびかれいに対して前記
した第２図に示す装置と同じものを用い、ひらめ，かれ
いの体長Ｌと電界強度Ｅとの関係を調べたところ、第５
図に示すようになつた。The schematic configuration of the interruption device applied in the third embodiment is the same as that of the second embodiment described above with reference to FIG. 1, and the difference from the first embodiment is that the seafood to be intercepted is “inspiration” and “karei”. Using the same device as the device shown in FIG. 2 for the inspiration and the hemisphere, the relationship between the body length L of the inspiration and the hemisphere and the electric field strength E was examined.
It became as shown in the figure.
すなわち、第５図に示す体長Ｌと電界強度Ｅとの関係図
中の曲線Ｈの左側の範囲で驚く程度の軽微な反応を示
し、同図中の曲線Ｈと曲線Ｉとの間の範囲で痺れを示
し、同図中の曲線Ｉと曲線Ｊとの間の範囲で麻痺し、
同図中の曲線Ｊの右側の範囲で致死状態となり、各曲
線H,I,Jは、それぞれ積Ｅ・Ｌが0.9〔Ｖ〕,2.0〔Ｖ〕,1
0〔Ｖ〕にほぼ近似する。That is, a surprisingly slight reaction is shown in the range on the left side of the curve H in the relationship diagram between the body length L and the electric field strength E shown in FIG. 5, and in the range between the curve H and the curve I in the figure. Showing numbness, paralyzing in the range between the curve I and the curve J in the figure,
In the range on the right side of the curve J in the figure, the state is lethal, and the products E and L of the curves H, I, and J are 0.9 [V], 2.0 [V], 1 respectively.
It is approximately close to 0 [V].
したがつて、前記した第１図の各電極列（1a）〜（1d）
間に、Ｅ・Ｌの値がそれぞれ前記した第５図中の範囲
，，内の値になるように、各電源（2a）〜（2c）
の印加電圧を制御することにより、遮断対象魚介類とし
てのひらめ，かれいが、仮死，致死状態に至ることな
く，効果的にひらめ，かれいの所定域外への遊泳を遮断
することができる。Therefore, the electrode rows (1a) to (1d) shown in FIG.
In between, each power supply (2a) ~ (2c), so that the value of E, L becomes the value within the range ,, in the above-mentioned FIG. 5, respectively.
By controlling the voltage applied to the fish, it is possible to effectively inspire and block the swimming of helicopter as a target for shutoff without causing asphyxia or lethality.
ところで、たとえば電極列（1a），（1b）間のE7・Ｌの
値を前記範囲内の0.5〔Ｖ〕，電極列（1b），（1c）
間のE8・Ｌの値を前記範囲内の1.5〔Ｖ〕，電極列（1
c），（1d）間のE9・Ｌの値を前記範囲内の5.0〔Ｖ〕
にするためには、ひらめ，かれいの体長Ｌを５〔cm〕，
電極列（1a），（1b）間，電極列（1b），（1c）間，電
極列（1c），（1d）間の距離X1,X2,X3をそれぞれX1＝20
0〔cm〕,X2＝150〔cm〕,X3＝100〔cm〕とすると、電源
（2a），（2b），（2c）のそれぞれの印加電圧V7,V8,V9
はそれぞれ、 とすればよい。By the way, for example, the value of E 7 · L between the electrode rows (1a), (1b) is 0.5 [V] within the above range, the electrode rows (1b), (1c)
The value of E 8 · L between is 1.5 [V] within the above range, and the electrode array (1
The value of E 9 · L between c) and (1d) is 5.0 [V] within the above range.
In order to achieve this, the inspiration, the length L of his body should be 5 [cm],
The distance X 1 , X 2 , X 3 between the electrode rows (1a) and (1b), between the electrode rows (1b) and (1c), and between the electrode rows (1c) and (1d) is X 1 = 20, respectively.
When 0 [cm], X 2 = 150 [cm], X 3 = 100 [cm], the applied voltages V 7 , V 8 and V 9 of the power supplies (2a), (2b) and (2c), respectively.
Respectively And it is sufficient.
このとき、電極列（1a），（1b）間のE7・Ｌの値（＝0.
5V），電極列（1b），（1c）間のE8・Ｌの値（＝1.5
V），電極列（1c），（1d）間のE9・Ｌの値（＝5.0V）
の比の関係は、E7・Ｌの値を基準とすると、1:3:10とな
る。At this time, the value of E 7 · L between the electrode rows (1a) and (1b) (= 0.
5V), electrode array (1b), (1c) E 8 · L value (= 1.5
V), the electrode array (1c), (1d) the value of E 9 · L between (= 5.0V)
The ratio relationship is 1: 3: 10 based on the value of E 7 · L.
（実施例４） つぎに、実施例４を示した第６図について説明する。Example 4 Next, FIG. 6 showing Example 4 will be described.
実施例４において適用する遮断装置の概略構成は、前記
した第１図と同様であり、実施例１と異なる点は、遮断
対象魚介類を“くるまえび”にした点であり、くるまえ
びに対して前記した第２図に示す装置と同じものを用
い、くるまえびの体長Ｌと電界強度Ｅとの関係を調べた
ところ、第６図に示すようになつた。The schematic configuration of the shutoff device applied in the fourth embodiment is the same as that in FIG. 1 described above, and the difference from the first embodiment is that the seafood to be shut off is “shrimp”. Then, the same apparatus as that shown in FIG. 2 was used to examine the relationship between the body length L of the shrimp and the electric field strength E, and the result was as shown in FIG.
すなわち、第６図に示す体長Ｌと電界強度Ｅとの関係図
中の曲線Ｋの左側の範囲で驚く程度の軽微な反応を
し、同図中の曲線Ｋと曲線Ｍとの間の範囲で痺れを示
し、同図中の曲線Ｍと曲線Ｎとの間の範囲で麻痺し、
同図中の曲線Ｎの右側の範囲で致死状態なり、各曲線
K,M,Nは、それぞれ積Ｅ・Ｌが0.25〔Ｖ〕,0.7〔Ｖ〕,10
〔Ｖ〕にほぼ近似する。That is, a surprisingly slight reaction occurs in the range on the left side of the curve K in the relationship diagram between the body length L and the electric field strength E shown in FIG. 6, and in the range between the curve K and the curve M in the figure. Showing numbness, paralyzing in the range between the curve M and the curve N in the figure,
In the area on the right side of the curve N in the figure, a fatal state is reached, and each curve
K, M, N have product E · L of 0.25 [V], 0.7 [V], 10 respectively
It is almost similar to [V].
したがつて、前記した第１図の各電極列（1a）〜（1d）
間に、Ｅ・Ｌの値がそれぞれ前記した第６図中の範囲
，，内の値になるように、各電源（2a）〜（2c）
の印加電圧を制御することにより、遮断対象魚介類とし
てのくるまえびが、仮死，致死状態に至ることなく，効
果的にくるまえびの所定域外への遊泳を遮断することが
できる。Therefore, the electrode rows (1a) to (1d) shown in FIG.
In between, each power supply (2a) ~ (2c), so that the value of E · L becomes the value in the range,
By controlling the voltage applied to the fish, it is possible to effectively block the swimming of the shrimp outside the predetermined range without causing asphyxia or lethality.
ところで、たとえば電極列（1a），（1b）間のE10・Ｌ
の値を前記範囲内の0.1〔Ｖ〕，電極列（1b），（1
c）間のE11・Ｌの値を前記範囲内の0.5〔Ｖ〕，電極
列（1c），（1d）間のE12・Ｌの値を前記範囲内の5.0
〔Ｖ〕にするためには、くるまえびの体長Ｌを５〔c
m〕，電極列（1a），（1b）間，電極列（1b），（1c）
間，電極列（1c），（1d）間の距離X1,X2,X3をそれぞれ
X1＝200〔cm〕,X2＝150〔cm〕,X3＝100〔cm〕とする
と、電源（2a），（2b），（2c）のそれぞれの印加電圧
V10,V11,V12はそれぞれ、 とすればよい。By the way, for example, E 10 · L between the electrode rows (1a) and (1b)
Value of 0.1 [V] within the above range, electrode array (1b), (1
The value of E 11 · L between c) is 0.5 [V] within the above range, and the value of E 12 · L between electrode rows (1c) and (1d) is 5.0 within the above range.
To obtain [V], set the length L of the prawns to 5 [c
m], between electrode rows (1a), (1b), electrode rows (1b), (1c)
The distance X 1 , X 2 , X 3 between the electrode rows (1c) and (1d), respectively.
When X 1 = 200 [cm], X 2 = 150 [cm], X 3 = 100 [cm], the applied voltages of the power supplies (2a), (2b), (2c)
V 10 ,, V 11 , V 12 are And it is sufficient.
このとき、電極列（1a），（1b）間のE10・Ｌの値（＝
0.1V），電極列（1b），（1c）間のE11・Ｌの値（＝0.5
V），電極列（1c），（1d）間のE12・Ｌの値（＝5.0V）
の比の関係は、E10・Ｌの値を基準とすると、1:5:50と
なる。At this time, the value of E 10 L between the electrode rows (1a) and (1b) (=
0.1 V), the electrode array (1b), (1c) the value of E 11 · L between (= 0.5
V), the electrode array (1c), (1d) the value of E 12 · L between (= 5.0V)
The relationship of the ratio is 1: 5: 50 based on the value of E 10 · L.
（実施例５） なお、実施例５として、前記した各実施例１ないし４に
おける各電極列（1a）〜（1d）のうち３個を選択的に配
設し、たとえば第７図に示すように電極列（1a），（1
b），（1c）を配設し、これらの各電極列（1a），（1
b），（1c）間に、電界強度Ｅと魚介類の体長Ｌとの積
の比の関係が、1:（２ないし３）：（４以上）の条件を
満足する少なくとも３種類の電界強度のうち、２種類の
組み合わせを含むような電界強度の領域を形成してもよ
い。(Fifth Embodiment) As a fifth embodiment, three of the electrode rows (1a) to (1d) in the above-described first to fourth embodiments are selectively arranged, as shown in FIG. 7, for example. The electrode array (1a), (1
b) and (1c) are arranged, and each of these electrode rows (1a), (1
Between b) and (1c), the relationship of the product ratio of the electric field strength E and the body length L of the seafood is at least three kinds of electric field strength satisfying the condition of 1: (2 to 3): (4 or more). Of these, a region having an electric field strength that includes a combination of two types may be formed.
また、電極列を５以上にしても、この発明を同様に実施
することができる。Further, even when the number of electrode rows is 5 or more, the present invention can be similarly implemented.
以上のように、この発明の魚介類の遊泳遮断方法による
と、各電極列間の電界強度を決定するパラメータとし
て、電界強度Ｅと遮断対象である魚介類の体長Ｌとの積
Ｅ・Ｌを導入し、積の比の関係が1:（２ないし３）：
（４以上）の条件を満足する少なくとも３種類の電界強
度のうち、２種類の組み合わせを含むように各領域を形
成するため、遮断対象である魚介類に驚き，痺れ，麻痺
程度の感電反応を示す電気的刺激を与えることが可能と
なり、魚介類の硬直や致死などを招くことなく、魚介類
の遊泳を確実に遮断することができる。As described above, according to the method for blocking seafood swimming according to the present invention, the product E · L of the electric field strength E and the body length L of the seafood to be cut off is used as a parameter for determining the electric field strength between the electrode rows. Introduced, the product ratio relationship is 1: (2 or 3):
Since each region is formed so as to include a combination of two types among at least three types of electric field strengths satisfying the condition (4 or more), a shocking reaction to the seafood to be cut off, such as surprise, numbness, or paralysis. The electric stimulation shown can be given, and the swimming of the seafood can be reliably blocked without causing rigidity or death of the seafood.
図面は、この発明の魚介類の遊泳遮断方法の実施例を示
し、第１図ないし第３図は実施例１を示し、第１図は概
略構成図、第２図は動作説明用の断面図、第３図は魚介
類の体長と電界強度との関係図、第４図ないし第６図は
それぞれ実施例２ないし４の魚介類の体長と電界強度と
の関係図、第７図は実施例５の概略構成図である。 （1a）〜（1d）……電極列、（2a）〜（2c）……電源、
（６）……魚介類。The drawings show an embodiment of the method for blocking swimming of seafood according to the present invention, FIGS. 1 to 3 show Embodiment 1, FIG. 1 is a schematic configuration diagram, and FIG. 2 is a sectional view for explaining the operation. FIG. 3 is a relationship diagram between body length and electric field strength of seafood, FIGS. 4 to 6 are relationship diagrams between body length and electric field strength of seafood of Examples 2 to 4, and FIG. 7 is an example. 5 is a schematic configuration diagram of FIG. (1a) ~ (1d) ... electrode array, (2a) ~ (2c) ... power supply,
(6) …… Seafood.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大工 博之 大阪府大阪市西区江戸堀１丁目６番14号 日立造船株式会社内 (72)発明者 荒井 浩成 大阪府大阪市西区江戸堀１丁目６番14号 日立造船株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Carpenter 1-6-14 Edobori, Nishi-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Inventor Hironari Arai 1-16-1 Edobori, Nishi-ku, Osaka City, Osaka Within Hitachi Zosen Corporation
Claims (1)
各電極列に電圧を印加して前記各電極列間に所定の電界
強度の領域を形成し、前記各領域により魚介類の所定域
外への遊泳を遮断する魚介類の遊泳遮断方法において、 前記各領域の電界強度と，遮断対象である魚介類の体長
との積の比の関係が、1:（２ないし３）：（４以上）の
条件を満足する少なくとも３種類の電界強度のうち、２
種類の組み合わせを含むように前記各領域を形成するこ
とを特徴とする魚介類の遊泳遮断方法。1. A plurality of electrode rows are arranged in parallel in water, a voltage is applied to each of the electrode rows to form a region having a predetermined electric field strength between the electrode columns, and the seafood is formed by each of the regions. In the method for blocking swimming of seafood for blocking swimming outside the predetermined range, the ratio of the product of the electric field strength of each region and the length of the seafood to be blocked is 1: (2 to 3): Of at least three types of electric field strength that satisfy the condition (4 or more), 2
A method for blocking swimming of seafood, characterized in that each region is formed so as to include a combination of types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62008552A JPH0763295B2 (en) | 1987-01-16 | 1987-01-16 | How to prevent seafood from swimming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62008552A JPH0763295B2 (en) | 1987-01-16 | 1987-01-16 | How to prevent seafood from swimming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63178496A JPS63178496A (en) | 1988-07-22 |
| JPH0763295B2 true JPH0763295B2 (en) | 1995-07-12 |
Family
ID=11696285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62008552A Expired - Lifetime JPH0763295B2 (en) | 1987-01-16 | 1987-01-16 | How to prevent seafood from swimming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763295B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03143335A (en) * | 1989-10-30 | 1991-06-18 | Hitachi Zosen Corp | Isolation of ear shell |
-
1987
- 1987-01-16 JP JP62008552A patent/JPH0763295B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63178496A (en) | 1988-07-22 |
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