JPS5948032A - Algae removing method and net to set net or fish preserve - Google Patents
Algae removing method and net to set net or fish preserveInfo
- Publication number
- JPS5948032A JPS5948032A JP57160299A JP16029982A JPS5948032A JP S5948032 A JPS5948032 A JP S5948032A JP 57160299 A JP57160299 A JP 57160299A JP 16029982 A JP16029982 A JP 16029982A JP S5948032 A JPS5948032 A JP S5948032A
- Authority
- JP
- Japan
- Prior art keywords
- net
- nets
- algae
- fixed
- cage
- 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
- 241000195493 Cryptophyta Species 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 9
- 241000251468 Actinopterygii Species 0.000 title claims description 8
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000034303 cell budding Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は定置網、生簀網などに対する除藻方法に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing algae from fixed nets, cage nets, etc.
定１〆網に於いて、網地に耐着成育する藻類は定置網の
潮流による変形を著るしく助長すると共に定置網内を暗
くして魚の大綱を阻害することになる。又、生簀網に於
いてはわ１内の潮通しを悪くするのほか、酸素欠乏を来
し魚の成育を阻害する問題のあるものである。In fixed nets, algae that grow resistant to the net material significantly promote the deformation of the fixed net by the tidal currents, and also darken the inside of the fixed net, inhibiting the movement of fish. In addition, fish cage nets have the problem of not only impairing the passage of water within the cage but also causing oxygen deficiency and inhibiting the growth of fish.
而して、これらの網に耐着成育した藻類を除去するには
、一旦網を陸上に引き揚げてから多数の人力を使用して
取り除くのであって。Therefore, in order to remove the algae that have grown resistant to these nets, the nets must be brought back to land and then removed using the power of many people.
大変に面倒な労作を必要とする。従って、これを防止す
る一般的なノ５法として藻類を忌避する薬剤を網に塗布
することが今日専ら採用されているのであるが、この種
の薬剤は３〜６箇月毎の再塗布が必要なのであり、これ
また多大な労力を必要として漁業家の大きな負担となっ
ているところである。It requires very tedious exertion. Therefore, the most common method used today to prevent this is to apply algae-repellent chemicals to the nets, but these types of chemicals require reapplication every 3 to 6 months. This also requires a great deal of labor and is a heavy burden on fishermen.
本発明は如上の間鴫点を解決する新規な方法及びその方
法の実施に直接使用する有）１＋な除藻網を提供せんと
するものであって、その特徴とするところは定置網や生
簀網など（以下本体網という）に除藻を目的とする網（
以下除藻網という）を常に接するように配置して潮流と
波浪などによる網同志の摺動摩擦により、耐着した藻類
を常時物理的に脱落するようになさしめることにあり、
以下本発明実箔の一例を添附図面にもとづいて説明する
。The present invention aims to provide a new method for solving the above problem and a 1+ algae removal net that can be used directly to implement the method. etc. (hereinafter referred to as the main net), nets for the purpose of algae removal (
The purpose of this method is to arrange algae removal nets (hereinafter referred to as algae removal nets) so that they are always in contact with each other, and to use the sliding friction between the nets caused by currents and waves to physically remove the algae that have adhered to the nets at all times.
An example of the actual foil of the present invention will be described below based on the accompanying drawings.
第１図は定置網の垣網ＩＫ実Ｍした例であって、垣網１
は通常水深よりも長い網を使用しているため、潮流のな
い場合は網裾は海底に着いている。ところで藻類が耐着
成育するのは凡そ海面下１〜２ｍから２５〜３０ ｍま
でのところであり、従ってこの範囲に除藻網２を取付け
るようになす。Figure 1 shows an example of IK actual netting for a fixed net.
They usually use nets that are longer than the depth of the water, so when there is no current, the net ends up on the seabed. By the way, the algae grow resistant to growth from about 1 to 2 meters below the sea surface to 25 to 30 meters below the sea surface, and therefore the algae removal net 2 is installed in this range.
本発明で使用される除藻網２は平面網で垣＠１とは幾分
か１合に差を持たせるようにすることが、即ち１合を相
互で異ならＬめるようにすることが両者間で目の重なり
合いが防止される上で目的とする摩擦作用が効果的に行
われて好結果が得られる。一方このさい除藻網の網糸の
太さは潮流抵抗を少くできる上で垣網のそれより細くす
ることが好ましい。The algae removal net 2 used in the present invention is a flat net with a slight difference in 1 go from the fence @ 1, that is, it is possible to make the 1 go different from each other. In addition to preventing the eyes from overlapping between the two, the desired frictional action is effectively performed and good results are obtained. On the other hand, in this case, it is preferable that the thickness of the threads of the algae removal net be thinner than that of the fencing net in order to reduce resistance to tidal currents.
この取付けにさいし、除藻網の上部は２〜３ｍの長さの
ロープ３を結んでお・き、これを介して浮子４に取付け
るようになすのであり、また下部は鉛入りロープ５を結
んでおき、これを介して垣細工に取付けるようになすの
である。ｆｒお５図面で６は垣網下端の沈子である。For this installation, a rope 3 with a length of 2 to 3 meters is tied to the upper part of the algae removal net, and it is attached to the float 4 via this, and a lead-filled rope 5 is tied to the lower part. It is then attached to the fence through this. 6 in the 5th drawing is the dipstick at the bottom of the fence.
本実がＵ例では除藻網２台・垣網１０月側に取付けたも
のを示したが両（ｔ！１１に取付けるようにしても良く
本発明実施の他の例とする。まだ、上記実施例でけ除藻
網２が垣網１からｉｔｌ＃れるのを防ぐために鉛入りロ
ープを・使用したものを示したが、これに代−りチェノ
や沈子なトラ・使用しても良い。In the example U, two algae removal nets and one installed on the fence net October side are shown, but it may be installed on both (t!11), and this is another example of implementing the present invention. In the example, a lead-containing rope was used to prevent the algae removal net 2 from slipping from the fence net 1, but it is also possible to use a cable rope or a sink rope instead. .
第２図は生簀網７に実ＩＫｕ した列であり、該網の外
側に対し前例と同様にして、除藻網２゜を取付けるよう
になす。Figure 2 shows a row of IKu actually installed on the fish cage net 7, and an algae removal net 2° is attached to the outside of the net in the same manner as in the previous example.
本発明は以上の如〈実施するものであって、本体網１に
対し除藻網２、に゛を常に接触状態下に置き、潮流や波
浪などの作用で両４′４４間に摺動摩擦を生じさせるよ
うになすのであり、従って常時物理的に付着成育する藻
類をその幼芽期に脱落させることのできるものであって
、省力化に寄与すること極めて大なるものである。The present invention is carried out as described above, in which the algae removal net 2 and the net are always kept in contact with the main net 1, and sliding friction is created between the two 4'44 by the action of tides, waves, etc. Therefore, it is possible to remove the algae that are constantly physically attached to the algae during their budding stage, which greatly contributes to labor saving.
添附図面は本発明実施の一例を説明するだめのもので、
第１図は定置梢の垣網に実施した場合の概略図、第２図
は生簀網に実施した ′場合の前面斜視図である。
１ ・・−垣 網 ２．２°・・・除藻網４ ・
・・浮 子 ５・・・鉛入りロープ６・・・沈子
７・・・生簀網
−１（The attached drawings are only for illustrating an example of the implementation of the present invention.
Fig. 1 is a schematic view of the method applied to a fence net for fixed treetops, and Fig. 2 is a front perspective view of the case applied to a fish cage net. 1...-fence net 2.2°...algae removal net 4 ・
... Float 5 ... Lead-filled rope 6 ... Sinker 7 ... Fish cage net -1 (
Claims (2)
る定置網、生簀網などの外（１４Ｉ＋に目金を異にし且
つ太さを細くした平面網を潮流や波浪により両線同志が
摺動摩擦を生ずるように設けしめることを特徴とする定
置網、生簀網などに対する除藻方法。(1) Outside of fixed nets, fish preserve nets, etc. in the range of 1-2 m to 25-30 m below the sea surface (flat nets with different eyes and thinner thickness than 14I+) are used to prevent both wires from collapsing due to currents and waves. A method for removing algae from fixed nets, cage nets, etc., which is characterized in that they are installed so as to generate sliding friction.
細くした平面網で；その網裾には鉛入りロープ又は沈子
或はチェノなどを取付けせしめたことを特徴とする特許
請求の範囲第１項記載の定置網、生簀網などに対する除
藻方法の一実施に直接使用する除藻網。(2) A patent claim characterized in that it is a flat net with a different mesh and a thinner thickness than a fixed net, a fish cage net, etc.; a lead-filled rope or a piece of algae or chino is attached to the hem of the net. Scope: An algae removal net that can be used directly to carry out the algae removal method for fixed nets, cage nets, etc. as described in item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57160299A JPS5948032A (en) | 1982-09-13 | 1982-09-13 | Algae removing method and net to set net or fish preserve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57160299A JPS5948032A (en) | 1982-09-13 | 1982-09-13 | Algae removing method and net to set net or fish preserve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5948032A true JPS5948032A (en) | 1984-03-19 |
Family
ID=15711959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57160299A Pending JPS5948032A (en) | 1982-09-13 | 1982-09-13 | Algae removing method and net to set net or fish preserve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948032A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60156957U (en) * | 1984-03-28 | 1985-10-18 | 泰東製綱株式会社 | Fixed net fence |
| CN101869088B (en) | 2008-06-05 | 2012-09-05 | 敖志辉 | Tide and wave type device for automatically washing net cage under water |
| FR3096231A1 (en) * | 2019-05-23 | 2020-11-27 | Alexis De Jaham | Floating net |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574735A (en) * | 1978-11-30 | 1980-06-05 | Andrews & George Co Inc | Stain preventing apparatus for fishing net for breeding |
-
1982
- 1982-09-13 JP JP57160299A patent/JPS5948032A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574735A (en) * | 1978-11-30 | 1980-06-05 | Andrews & George Co Inc | Stain preventing apparatus for fishing net for breeding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60156957U (en) * | 1984-03-28 | 1985-10-18 | 泰東製綱株式会社 | Fixed net fence |
| CN101869088B (en) | 2008-06-05 | 2012-09-05 | 敖志辉 | Tide and wave type device for automatically washing net cage under water |
| FR3096231A1 (en) * | 2019-05-23 | 2020-11-27 | Alexis De Jaham | Floating net |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hyland et al. | Movement within and between different habitats by the portunid crab Scylla serrata | |
| Adams | Indigenous use of wetlands and sustainable development in West Africa | |
| Beamesderfer et al. | Alternatives for the protection and restoration of sturgeons and their habitat | |
| Ghulam Kibria et al. | Diversity of selective and non-selective fishing gear and their impact on inland fisheries in Bangladesh | |
| Guillory | Utilization of an inundated floodplain by Mississippi River fishes | |
| He | Gillnets: gear design, fishing performance and conservation challenges | |
| US5213058A (en) | Recoverable aquaculture habitat utilizing pneumatic tire casings | |
| KR200396100Y1 (en) | house type art a fish-breeding ground | |
| JPH0118697B2 (en) | ||
| JP3532865B2 (en) | Algae growing components | |
| JPS606142A (en) | Fish and shellfish culture apparatus | |
| JP2007105002A (en) | Alien fish collection device | |
| CN207083916U (en) | Triangular prism-shaped precious marine product finishing device | |
| JPS5820133A (en) | Float fish bank and fish gathering method | |
| Raju et al. | By-catch and Discard Management towards Sustainable Fisheries | |
| CN106069946B (en) | A kind of deep water mesh cage system and its framework method of construction | |
| JPH08140519A (en) | Artificial artificial reef made of concrete | |
| CN2425510Y (en) | High-efficiency net-trapping fishing apparatus | |
| JPH0337408Y2 (en) | ||
| JP3160602B1 (en) | Growing member and method for growing algae using the growing member | |
| Myat | Some Fishing Gears and Target Species in Chaungtha Coast Water, Ayeyarwady Region, Myanmar | |
| JPH04278039A (en) | Fixed shore net | |
| Anderson | Designing a Stream | |
| Johnston | Studies on the distribution and migrations of the flounder Platichthys flesus (L.), in the River Dee, North Wales | |
| Shepherd et al. | Reef fishes of NE Kangaroo Island: A nursery role for Eastern Cove |