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Underwater Geometry of the Anchovy Boat Seine in Process of the Fishing Operation

기선권현망어구의 조업과정중 수중형상

  • Published : 2005.05.01

Abstract

This study was carried out to observe the underwater geometry of the anchovy boat seine by two fishing operation systems. One was a traditional operation system that used a fish detecting boat, another was a new operation system that used the same fishing gear with floats and sinkers in comparison with a fish detecting boat. Vertical opening of the fishing gear that used a casting net, working depth of each part of the fishing gear that used a new operation system was almost canstant, but was gradually shallow in a traditional operation system. Just before hauling net, working depth of each part of the fishing gear that used a new operation system was maintained stable, but was vertically unstable in a traditional operation system because as rear part of the fishing gear was risen up the upper layer. Just after hauling net, working depth of the fishing gear that used a new operation system was also maintained stable, and then anchovy school could be lead to bag net.

Keywords

anchovy boat seine;casting net;hauling net;anchovy;bag net

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Cited by

  1. The opening efficiency of the existent net of the anchovy boat seine vol.54, pp.1, 2018, https://doi.org/10.3796/KSFOT.2018.54.1.001
  2. The opening efficiency of the miniaturized large-scale net for anchovy boat seine to reduce the fleet size vol.54, pp.1, 2018, https://doi.org/10.3796/KSFOT.2018.54.1.012