JPH0441569B2 - - Google Patents
Info
- Publication number
- JPH0441569B2 JPH0441569B2 JP63049583A JP4958388A JPH0441569B2 JP H0441569 B2 JPH0441569 B2 JP H0441569B2 JP 63049583 A JP63049583 A JP 63049583A JP 4958388 A JP4958388 A JP 4958388A JP H0441569 B2 JPH0441569 B2 JP H0441569B2
- Authority
- JP
- Japan
- Prior art keywords
- fish
- reef
- mesh
- dimensional
- net
- 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
- Artificial Fish Reefs (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、人工種苗され、海洋に放流された稚
魚を外敵である大きな魚から守りながら生育させ
るために海中に設置される立体網の目魚礁に関す
るものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to a three-dimensional net that is installed in the sea in order to grow artificially seeded and released young fish into the sea while protecting them from large fish that are predators. It is about fish reefs.
従来の魚礁の多くは、コンクリート製の中空ブ
ロツク状のものであり、藻や海草が付きにくく、
また、海底に設置されるため、設置する魚礁の水
深を調整することはできなかつた。
Most conventional fish reefs are hollow blocks made of concrete, which prevent algae and seaweed from accumulating.
Also, because it was installed on the seabed, it was not possible to adjust the water depth of the fish reef.
また、人工種苗生産された稚魚を、海洋または
海洋牧場に放流する場合、稚魚が外敵に食われる
確率は非常に高く、その生育の確率が非常に低く
なつている。 Furthermore, when artificially produced fingerlings are released into the ocean or on a marine farm, the probability that the fry will be eaten by foreign predators is very high, and the probability of their survival is very low.
これは、従来の魚礁が、ともかく魚が住みやす
い水中空間を作ることを目的としたものであり、
稚魚用の魚礁が存在しないことからである。 The purpose of this is to create an underwater space where fish can easily live, unlike conventional fish reefs.
This is because there are no reefs for young fish.
本発明は、前記従来の問題点を解消するために
なされたものであり、藻や海草が付着しやすく、
魚類の育生環境に向上させると共に、所望の水深
に設置することを目的とし、また、放流された稚
魚を外敵である大きな魚が入れない立体網内で生
育させ、その立体網内に設けた給餌キヤツチ板で
餌づけさせることにより、自然環境内で外敵から
守りながら稚魚を生育させて、その生育の確率を
向上させることを目的としたものである。
The present invention was made in order to solve the above-mentioned conventional problems, such as easy attachment of algae and seaweed,
The purpose is to improve the breeding environment for fish and to place them at the desired water depth. Also, the released young fish are grown in a three-dimensional net where large predators cannot enter, and feeding is provided within the three-dimensional net. The purpose is to raise the fry in a natural environment while protecting them from predators by feeding them with a catch board, thereby increasing the probability of their growth.
上記の問題点を達成するための本発明の立体網
の目魚礁は、網の目を立体的に張設した立体網内
の平面方向及び／または上下方向の適宜の位置に
給餌キヤツチ板を配設した立体網の目魚礁からな
り、稚魚が住むのに適し、かつ外敵である稚魚よ
り大きな魚が入れない網の目サイズからなる立体
網内の水平方向のメツシユに、その平面方向及
び／または上下方向に適宜な位置、例えば千鳥状
配置で、複数の水平な給餌キヤツチ板６を配設し
て立体網の目魚礁を形成する。
In order to achieve the above-mentioned problems, the three-dimensional mesh fish reef of the present invention has feeding catch plates disposed at appropriate positions in the plane direction and/or the vertical direction within the three-dimensional net in which the mesh mesh is stretched three-dimensionally. The horizontal mesh in the three-dimensional mesh is made up of a three-dimensional mesh reef that is suitable for young fish to live in, and that does not allow fish larger than the external enemy, the young fish, to enter, in the horizontal direction and/or A plurality of horizontal feeding catch plates 6 are arranged at appropriate positions in the vertical direction, for example, in a staggered arrangement, to form a three-dimensional mesh fish reef.
実施例
以下図面を参照して本発明の各実験例における
立体網の目魚礁を説明する。立体網の目魚礁の形
状は、第６図に示すように網の目を立体的に張設
しており、その内部もＡ−Ａ矢視の断面第７−Ａ
図、Ｂ−Ｂ矢視の断面第７−Ｂ図、Ｃ−Ｃ矢視の
断面第７−Ｃ図のように立体的に網の目が張設さ
れている。第１図を実施例１は、稚魚が住むのに
適し、かつ外敵である稚魚より大きな魚が入れな
い網の目サイズからなる立体網１内の水平方向の
メツシユに、その平面方向及び上下方向に適宜な
位置、例えばこの実施例１のごとく千鳥状配置
で、複数の水平な給餌キヤツチ板６を配設して立
体網の目魚礁を形成している。EXAMPLES Hereinafter, three-dimensional mesh reefs in experimental examples of the present invention will be described with reference to the drawings. The shape of the three-dimensional mesh reef is as shown in Figure 6, where the mesh is stretched three-dimensionally, and the inside of the reef also has a cross section 7-A in the direction of the A-A arrow.
As shown in FIG. 7-B, a cross section taken along the line B-B, and FIG. 7-C, a cross-section taken along the line C-C, the net is stretched three-dimensionally. Embodiment 1 shown in FIG. 1 shows that the mesh in the horizontal direction in the three-dimensional net 1 is made of a mesh size that is suitable for young fish to live in and that does not allow fish larger than the fry, which are external enemies, to enter, in the horizontal direction and vertical direction. A plurality of horizontal feeding catch plates 6 are arranged at appropriate positions, for example, in a staggered arrangement as in the first embodiment, to form a three-dimensional mesh reef.
この立体網１の上下の周囲には、その立体形状
を保つために、塩ビパイプや木材等の骨格部材５
を取付けており、その上部には浮体２を取付け、
下方及びサイドのロープ４をシンカー３に係留
し、海底Ｂにこの稚魚を固定している。 Around the top and bottom of this three-dimensional net 1, skeletal members 5 such as PVC pipes and wood are used to maintain its three-dimensional shape.
is installed, and a floating body 2 is installed on top of it,
The lower and side ropes 4 are moored to the sinker 3, and the young fish are fixed on the seabed B.
また、水面Ｌに標識ブイ７を設置して、給餌装
置８を介して水面Ｌ上から矢印Ｆのごとく給餌す
る際と、メンテナンス時の目印とする。 Further, a marker buoy 7 is installed on the water surface L to serve as a mark when feeding from above the water surface L via the feeding device 8 as shown by an arrow F and during maintenance.
なお、この立体網１からなる魚礁は使用目的と
する魚の種類の性質により、ロープ４を調節する
ことにより、その水深位置を変えることとする。 The depth position of the fish reef made of the three-dimensional net 1 can be changed by adjusting the rope 4 depending on the nature of the type of fish to be used.
この立体網の目魚礁では、その放流稚魚のサイ
ズに合せて網の目のサイズを適宜に決めることに
より稚魚１０のみが住みつける魚礁とすることが
でき、大型の魚１２は中に入ることができないの
で外敵から稚魚１０は自然に守られることにな
る。 In this three-dimensional mesh fish reef, by appropriately determining the mesh size according to the size of the released young fish, it is possible to create a fish reef where only the young fish 10 can live, and large fish 12 cannot enter inside. Since this is not possible, the fry 10 will be naturally protected from external predators.
また、この実施例１では浮体２で魚礁を海中の
稚魚１０の棲息する水深に合せて設置でき、魚礁
の上から給餌装置８を介して給餌Ｆを行なう場合
に、給餌キヤツチ板６が千鳥状に配置してあるの
で、落ちてくる餌をこの魚礁内でキヤツチでき他
に散逸しないので経済的である。 In addition, in this embodiment 1, the fish reef can be installed on the floating body 2 according to the water depth where the young fish 10 live in the sea, and when feeding F is performed from above the fish reef via the feeding device 8, the feeding catch plate 6 is arranged in a staggered shape. This is economical because falling bait can be caught within the reef and not dissipated elsewhere.
次に、第２図の実施例は第１図の実施例１とほ
ぼ同様の構成および機能を有するものであるが、
第１図及び第２図、更に以下に説明する第３図、
第４図及び第５図と共に、それぞれ同じ部品は同
じ部品番号で示している。 Next, the embodiment shown in FIG. 2 has almost the same configuration and function as the embodiment 1 shown in FIG.
FIG. 1 and FIG. 2, and FIG. 3, which will be explained below,
Like FIGS. 4 and 5, the same parts are designated by the same part numbers.
そこで、第２図は第１図と同様な給餌キヤツチ
板６を設けた立体網１が、陵線のみからなる中空
コンクリート枠９内に固定ロープ１１で取付けら
れることにより内蔵されており、この中空コンク
リート枠９を海底Ｂに設置することにより、この
魚礁が主に底層魚の稚魚１０の専用として使用で
きる。 Therefore, in FIG. 2, a three-dimensional net 1 equipped with a feeding catch plate 6 similar to that shown in FIG. By installing the concrete frame 9 on the seabed B, this fish reef can be used mainly for the exclusive use of young bottom fish 10.
更に、第３図の実施例３及び第４図の実施例４
は、１年のものと２年ものの稚魚１０が同居でき
ることをねらつた第１図の実施例と同様な構成の
ものであり、一つの立体網の目魚礁の中に２種類
の網の目部分を配設したものである。 Furthermore, Example 3 shown in FIG. 3 and Example 4 shown in FIG.
The structure is similar to the embodiment shown in Fig. 1, which aims to allow 1-year-old and 2-year-old fry 10 to live together, and has two types of mesh parts in one three-dimensional mesh reef. is arranged.
即ち、第３図で立体網１の中心部１５に小さ目
の網の目サイズのものが使用され１年ものの稚魚
１０Ａの稚魚とし、その外周部１４に上記より少
し大き目の網の目サイズのものが使用され２年も
のの稚魚１０Ｂの魚礁としたものである。 That is, in FIG. 3, a one-year-old fry with a smaller mesh size is used in the center 15 of the three-dimensional net 1, and a mesh with a slightly larger mesh size than the above is used in the outer peripheral part 14. was used to create a 2-year-old juvenile 10B fish reef.
一方、第４図では、立体網１を、大きな網の目
サイズの部分２４と小さな網の目サイズの部分２
３とが上下互い違いになるように構成しており、
それぞれを２年ものの稚魚１０Ｂと１年ものの稚
魚１０Ａを各魚礁したものである。 On the other hand, in FIG. 4, the three-dimensional mesh 1 is divided into a large mesh size part 24 and a small mesh size part 2.
3 and 3 are arranged alternately up and down,
Each of these is a 2-year-old fry 10B and a 1-year-old fry 10A.
以上のごとく、第３図及び第４図のごとく、網
の目の大きさを変えた海中空間を設けることによ
り、稚魚１０の生育の段階に合せて棲息する空間
を設けることができる。 As described above, by providing underwater spaces with different mesh sizes as shown in FIGS. 3 and 4, it is possible to provide habitat spaces for the young fish 10 according to their growth stages.
次に、第５図の実施例５は、立体網１の網糸に
ブラシ状の糸３１を使用した魚礁を示しており、
このブラシ状の糸３１にはその突起部分に海草３
２が付着しやすく、このようなブラシ状の糸３１
からなる立体網１を前記第１図から第４図までの
各実施例に適用すれば、その魚礁としての環境が
向上し、稚魚１０の育生上好まく、更に、このよ
うなブラシ状の糸３１を小さな網の目の方に使用
すれば、稚魚１０同志の活動範囲を自然に制御で
き、共食い性のある稚魚にも効果がある。 Next, Example 5 in FIG. 5 shows a fish reef using a brush-like thread 31 as the thread of the three-dimensional net 1.
This brush-like thread 31 has seaweed 3 on its protrusion.
2 is easy to adhere to, such brush-like thread 31
If the three-dimensional net 1 made of the above-mentioned three-dimensional net 1 is applied to each of the embodiments shown in FIGS. If No. 31 is used for small meshes, the activity range of the fry 10 can be naturally controlled, and it is also effective against cannibalistic fry.
なお、このような立体網１の網の糸に海草の菌
を植込んでおけば、網に海草を植付けることがで
きるので、魚礁としての環境が良くなる。 In addition, if seaweed bacteria are planted in the net threads of such a three-dimensional net 1, seaweed can be planted in the net, and the environment as a fish reef will be improved.
以上に説明したごとく、本発明の立体網の目魚
礁を採用すれば、藻や海草が付着しやすく、魚類
の育生環境を向上させると共に、所望の水深に容
易に設置できるという効果があり、網の目を大き
な魚、即ち外敵が入れないサイズとすれば放流さ
れた稚魚だけが住みつける魚礁が得られ、稚魚は
その立体網で外敵から守られ、その生育の確率を
著しく向上することができるという効果がある。
As explained above, if the three-dimensional mesh fish reef of the present invention is adopted, algae and seaweed will easily adhere to it, improving the breeding environment for fish, and the net can be easily installed at a desired depth. If the eyes of the fish are large, i.e., large enough to prevent predators from entering, a reef can be created in which only the released fry can live, and the fry can be protected from predators by the three-dimensional net, significantly improving their chances of survival. There is an effect.
また、その立体網内に水平方向の給餌キヤツチ
板が適宜な位置に配設されているので、海面上か
ら供給され落ちてくる餌をその魚礁内で効率良く
キヤツチし、魚礁外に無駄に散逸することなしに
魚に給餌され、経済的であるという利点もある。 In addition, since horizontal feeding catch plates are placed at appropriate positions within the three-dimensional net, the bait that falls from the sea surface is efficiently caught within the reef, and is not wasted outside the reef. It also has the advantage of being economical and being able to feed the fish without having to do anything.
また、網の目を変えた空間をそれぞれ設けるこ
とにより、稚魚の生育の段階に合せた空間を設け
ることができ、稚魚の順調な生育をはかることも
できる。 Furthermore, by providing spaces with different mesh sizes, it is possible to provide spaces that match the growth stage of the young fish, and it is also possible to ensure the smooth growth of the young fish.
更に、網の糸にブラシ状の糸を使うことによ
り、海草を付着させ、魚礁としての環境を良くす
ることができる。 Furthermore, by using brush-like threads in the net, seaweed can be attached to the net, thereby improving the environment of the fish reef.
特に、本発明の魚礁では、周囲の水中とは立体
網で仕切られているだけであり、稚魚の育成に必
要なプランクトン等が自由に魚礁内に流通すると
いう利点がある。 In particular, the fish reef of the present invention has the advantage that it is only separated from the surrounding water by a three-dimensional net, and that plankton and the like necessary for raising young fish can freely circulate within the fish reef.
第１図から第５図までに示すのは本発明の立体
網の目魚礁の各実施例における側面図であり、第
１図は実施例１を、第２図は実施例２を、第３図
は実施例３を、第４図は実施例４を、そして第５
図は実施例５をそれぞれ示し、第６図は立体網の
目網礁の斜視図、第７−Ａ図、第７−Ｂ図、第７
−Ｃ図は、第６図のＡ−Ａ矢視、Ｂ−Ｂ矢視、Ｃ
−Ｃ矢視図である。
１……立体網、６……給餌キヤツチ板、９……
中空コンクリート、１０，１０Ａ，１０Ｂ……稚
魚、１４……外周部、１５……中心部、２３……
小さな網の目サイズ部分、２４……大きな網の目
サイズ部分、３１……ブラシ状の糸。
1 to 5 are side views of each embodiment of the three-dimensional mesh reef of the present invention. FIG. 1 shows embodiment 1, FIG. 2 shows embodiment 2, and The figure shows Example 3, Figure 4 shows Example 4, and Figure 5 shows Example 4.
The figures show Example 5, and FIG. 6 is a perspective view of a three-dimensional net mesh reef, FIG. 7-A, FIG. 7-B, and FIG.
-C is the A-A arrow view, B-B arrow view, and C of Fig. 6.
-C arrow view. 1...Three-dimensional net, 6...Feeding catch board, 9...
Hollow concrete, 10, 10A, 10B... fry, 14... outer periphery, 15... center, 23...
Small mesh size part, 24... Large mesh size part, 31... Brush-like thread.
Claims (1)
向及び／または上下方向の適宜の位置に給餌キヤ
ツチ板を配設した立体網の目魚礁。1. A three-dimensional fish reef with feeding catch plates arranged at appropriate positions in the plane and/or vertical direction within the three-dimensional net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049583A JPH01225428A (en) | 1988-03-04 | 1988-03-04 | Fish reef having mesh of three-dimensional net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049583A JPH01225428A (en) | 1988-03-04 | 1988-03-04 | Fish reef having mesh of three-dimensional net |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01225428A JPH01225428A (en) | 1989-09-08 |
| JPH0441569B2 true JPH0441569B2 (en) | 1992-07-08 |
Family
ID=12835239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63049583A Granted JPH01225428A (en) | 1988-03-04 | 1988-03-04 | Fish reef having mesh of three-dimensional net |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01225428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022172950A1 (en) | 2021-02-09 | 2022-08-18 | 川崎重工業株式会社 | Roll molded component manufacturing device and manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006063412A1 (en) * | 2004-12-16 | 2006-06-22 | Eyre Peninsula Aquaculture Pty Ltd | Self-sustaining abalone farming system |
| CN102499146A (en) * | 2011-10-31 | 2012-06-20 | 中国水产科学研究院淡水渔业研究中心 | Method for improving ricefield eel culture production by utilizing stacked hidden object |
| GR1009469B (en) * | 2017-08-30 | 2019-02-25 | Αργυρης Δημητριου Καπανταγακης | A structure for the protection of new-born fish |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54154294U (en) * | 1978-04-18 | 1979-10-26 | ||
| JPS56113233A (en) * | 1980-02-08 | 1981-09-07 | Toray Industries | Flexible artificial fish bank |
| JPS60185468U (en) * | 1984-05-21 | 1985-12-09 | 強靭繊維興業株式会社 | Substrate for the propagation of seafood |
| JPS61202638A (en) * | 1985-03-06 | 1986-09-08 | 長崎 作治 | Ocean float structure under surface of sea |
| JPS6216267U (en) * | 1985-07-17 | 1987-01-30 |
-
1988
- 1988-03-04 JP JP63049583A patent/JPH01225428A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022172950A1 (en) | 2021-02-09 | 2022-08-18 | 川崎重工業株式会社 | Roll molded component manufacturing device and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01225428A (en) | 1989-09-08 |
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