Improvement of the Fishing Gear and Fishing Method of the East-Sea Trawl Fishery

동해구 트롤 어구어법의 개량

  • Published : 2001.05.01

Abstract

A serious of studies on the fishing gear and system of the East Sea trawl fishery was carried out to improve the fishing efficiency and the working conditions. As the first step of these studies, the fishing gear and system of the traditional East Sea trawl were checked in order to solve the some problems, such as the poor sheering efficiency of net mouth, the inconvenient fishing system of the side trawl and etc. And then the fishing system was reorganized from the side trawl into the stern trawl by setting up the net drum system on the stern deck, and introduction of two types of new designed nets, one for mainly the midwater trawl and the other for the bottom trawl. The results of the field experiment on the modified system and nets can be summarized as follows : 1. the modified system was well worked and could save the man-labour by about 80%. 2. The sheering efficiency of the improved net, A type was improved to 20 m height and 30 m width in the net mouth, and that of B type net, to 10 m height and 33 m width, compared with 1.5 m height and 15 m width in the traditional net. 3. Catch efficiency of pink shrimp in A or B type net was better about 3 or 5 times than that of traditional net, and in B net, for herring and other bottom fishes is better about 2 times than that of the traditional net.

Keywords

References

  1. 日水誌 v.32 no.2 機t船底曳網の漁具と漁獲性能に關する硏究-Ⅰ 肥後伸夫
  2. 鹿大水紀要 v.23 底曳網の網成んに關する硏究 不破茂;
  3. 鹿大水紀要 v.32 底曳網の天井網に起因する揚力につぃて 不破茂
  4. Mem. Fac. Fish. v.25 no.1 On an Approximation Equation Applicable to the Designing of the Trawl Net - Ⅰ Mouri, K.;Higo, N.;Gotoh, M.
  5. 農水講硏報 v.17 二 曳機船底曳網の模型實驗- Ⅱ 谷口武夫
  6. Bull. Japan. Soc. Sci. Fish. v.31 no.6 Behaviour of Sweep line in with heavy Ball 谷口武夫
  7. Bull. Japan, Soc. Sci. Fish. v.31 no.6 Behaviour of Chain fitted Sweep line in pairtrawling 谷口武夫
  8. 鹿大水紀要 v.20 no.2 底曳網の漁獲性能に關する硏究 肥後伸夫
  9. 日水誌 v.22 no.1 底曳網の硏究-Ⅱ 肥後伸夫;德水喜郞;田中建悟
  10. 鹿大水紀要 v.28 底曳網の網高にかかるる張力につぃての考察 肥後伸夫;德水喜郞;田中建悟
  11. 事業報告 v.2 새우트롤試驗漁業事業報告 中央水産試驗場
  12. 수진연구보고 v.18 東海區 機船底引網 및 새우트롤漁業의 對象資源에 대한 考察 韓熙
  13. 漁業技術 v.13 no.2 대서양 아프리카 연안 트롤의 예망속도와 끌줄의 장력에 관하여 金鎭乾
  14. 漁業技術 v.21 no.2 底曳網의 漁具形狀에 관한 基礎的 硏究(Ⅲ) 李珠熙
  15. 漁業技術 v.22 no.4 한국 근해에 있어서의 중층 트롤의 연구 - 1. 전개판의 동작상태의 전개성능 - 李秉錡(外)
  16. 水産海洋敎育硏究 v.6 no.1 北太平洋 中層트롤그물의 發達 權炳國;張鎬榮
  17. 韓國漁業技術學會誌 v.31 no.4 쌍끌이중층망의 전개성능 향상을 위한 모형실험 권병국
  18. 韓國漁業技術學會誌 v.34 no.3 중층트롤시스템의 계측 및 운동 특성 李春雨(外)