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Assessment of fishing power of common octopus (Octopus minor) trap fishery

낙지통발어업의 어획성능지수 산정

  • An, Heui-Chun (Fisheries Engineering team, National Fisheries Research & Development Institute) ;
  • Lee, Kyoung-Hoon (Fisheries Engineering team, National Fisheries Research & Development Institute) ;
  • Park, Seong-Wook (Fisheries Engineering team, National Fisheries Research & Development Institute) ;
  • Park, Chang-Doo (Fisheries resources management and enhancement team, West Sea Fisheries Research Institute, NFRDI) ;
  • Shin, Jong-Keun (Fisheries Engineering team, National Fisheries Research & Development Institute)
  • 안희춘 (국립수산과학원 수산공학팀) ;
  • 이경훈 (국립수산과학원 수산공학팀) ;
  • 박성욱 (국립수산과학원 수산공학팀) ;
  • 박창두 (서해수산연구소 자원관리조성팀) ;
  • 신종근 (국립수산과학원 수산공학팀)
  • Published : 2007.08.31

Abstract

Fishing power, which means performance of fishing vessel or catchability of fishing gear, can explain using by fishing power index(FPI) to compare fishery efficiency among uniformity types of fishery that work during the fixed period in specific fishing ground. This research analyzed on their fishing power and catchability using comparing each sampled vessels of coastal trap fishery for common octopus. The results showed that they were no difference in amount of used trap and immersed time etc. in CPUE among sampled vessels, and had no correlation of catch production due to vessel's tonnage. Most vessel's FPI estimates but 3 vessels were higher than the averaged, and showed similar fishing power in general. And then, CPUE and FPI showed that 4 to 5 tonnage vessels would be superior to another, 4 tonnage vessels had also good catchability. Therefore, we estimated that 4 tonnage vessels had the most efficiency work for coastal trap fishery for common octopus.

Keywords

Fishing power index;CPUE;Catchability;Trap fishery;Common octopus

References

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