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http://dx.doi.org/10.3796/KSFOT.2022.58.4.310

Catch status of the giant pacific octopus, Enterocotpus dofleini, by drift line fishery in the central coast of the East Sea, Korea  

Young il, SEO (Coastal Water Fisheries Resources Research Division, National Institute of Fisheries Science)
Soo Jeong, LEE (West Sea Fisheries Research Institute, National Institute of Fisheries Science)
Jae-Hyeong, YANG (East Sea Fisheries Research Institute, National Institute of Fisheries Science)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.58, no.4, 2022 , pp. 310-316 More about this Journal
Abstract
Giant pacific octopus, Enteroctopus dofleini, is a large mollusk distributed in the East Sea of Korea. In this study, the catch status of giant pacific octopus by drift line fishery and the effect of sea temperature on fishing ground were investigated in Goseong-gun, Gangwon-do, which is the central coast of the East Sea. The average catch of giant pacific octopus in Gangwon-do was 1,570 tons over the past ten years, and it accounted for 21% in 2008 and 44% in 2021 compared to the total catch in the East Sea during the same period. Such data indicates that the catch in Gangwon-do has recently increased. In this study area, giant pacific octopus weighing 1.1-5.0 kg dominated accounting for 56% of the total individuals, and followed by those weighing 1 kg or less. However, the ratio of catch of giant pacific octopus over 5.1 kg tended to increase in 2021, which is thought to be related to the sea temperature that affected the fishing ground. The main depth of fishing ground was from 21 m to 50 m in this area and fishing grounds were widely distributed throughout the season except summer. Fishing ground was formed with the conditions of bottom sea temperature under 10℃ and was diminished by moving of giant pacific octopus to deeper depth with conditions of bottom sea temperature over 18℃.
Keywords
Catch status; Giant pacific octopus; Enteroctopus dofleini; Drift line fishery; Korea;
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1 Sano M and Bando T. 2015. Seasonal migration of North Pacific giant octopus Enteroctopus dofleini in the Soya/La Perouse Strait. Nippon Suisan Gakkaishi 81, 27-42. https://doi.org/10.2331/suisan.81.27.   DOI
2 Sato K. 1996. Survey of sexual Maturation in Octopus dofleini in the Coastal Waters off Cape Shifiya, Shimokota Peninsula. Aomori precenture. Nippon Suisan Gakkaishi. 62, 355-360.   DOI
3 An YI and Park JY. 2006. Octopus fisheries in the coastal waters of Gangneung-II. Octopus drift-line fishery. J Kor Soc Fish Tech 42, 78-85. https://doi.org/10.3796/ksft.2006.42.2.078.   DOI
4 Fukuda T. 1990. Ecology of Octopus dofleini and the effects of artificial reefs. Monthly report of Japan Fisheries Resources Conservation Association 318, 8-16.
5 Fukuda T. 1995. Ecology of Octopus dofleini in the Tsugaru Strait. The aquaculture 271, 2-15.
6 Fukuda T and Yamashita Y. 1978. Study on Octopus dofleini in the La Perouse Strait and the waters off Rirei. Journal of Hokkaido Fisheries Experimental Station 35, 1-16.
7 Joh M, Miyoshi K, Sato M and Sano M. 2017. Seasonal migration, growth, and exposed water temperature of immature giant octopus Enteroctopus dofleini using mark and recapture experiment and seasonal change in bottom water tempreature in the fishing ground. Bull Jpn Soc Fish Oceanogr 81, 50-59.
8 Kim JB, Yang JH and Lee SJ. 2016. First record of Octopus longispadiceus (Cephalopoda: Octopodidae) from Korea. Kor J Malacol 32, 221-229. https://doi.org/10.9710/kjm.2016.32.3.221.   DOI
9 Kim SA and Zhang CI. 1994. Fish Ecology. Seoul Press, Seoul, Korea. 273.
10 KOSIS. 2022. Korean statistical information service, Fishery production survey. Retrieved from https://kosis.kr.statisticalList/statisticsListindex.do?vwcd=MT-ZTITLE&menuld=M_01_01. Accessed 27 Jul 2022.
11 Lee SI, Yang JH, Lee HW, Kim JB and Cha HK. 2014. Maturity and spawning of the giant Pacific octopus, Octopus dofleini, in the coast of Gangwondo, East Sea, J Kor Soc Fish Tech 50, 154-161. https://doi.org/10.3796/KSFT.2014.50.2.154.   DOI
12 Noro K and Sakurai Y. 2012. Migration, distribution and growth patterns of the North Pacific giant octopus Enteroctopus dofleini in waters adjacent to Tsugaru Strait. Aquaculture Sci 60, 429-443.
13 Park SW, Lee JW, Yang YS and Seo DO. 2004. A study on behaviour of giant pacific ocotpus, Paratopus dofleini to single line hook for hook design. Bull Korean Soc Fish Tech 40, 1-8. https://doi.org/10.3796/ksft.2004.40.1.001.   DOI
14 Rigby PR and Sakurai Y. 2004. Temperature and Feeding related growth efficiency of immature octopuses Enteroctopus dofleini. Suisanzoshoku 52, 29-36. https://doi.org/10.11233/aquaculturesci1953.53.29.   DOI
15 Sano M. 2006. Reproductive season of the north pacific giant octopus Octopus dofleini in coastal area around Bakkai, Wakkanai, northern Hokkaido in the Sea of Japan. Sci Rep Hokkaido Fis Exp Stn 70, 95-98.