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한국 영일만에서 수산자원 종조성과 계절변동

이재봉;신영재;이수정;이종희;최영민;이동우;김상우;양재형
Lee, Jae Bong;Shin, Young Jae;Lee, Soo Jeong;Lee, Jong Hee;Choi, Young Min;Lee, Dong Woo;Kim, Sang Woo;Yang, Jae Hyeong

  • 투고 : 2012.05.09
  • 심사 : 2012.10.09
  • 발행 : 2012.10.31

초록

Coastal marine ecosystem plays important role of spawning and nursery grounds for fisheries resources. Yongil Bay is one of major coastal marine ecosystems, which is located in the southwestern East Sea of Korea. Species composition and abundance of marine organism in the Yongil Bay were investigated by season from March to November 2009. Gill net and pot fisheries were used for survey of pelagic and demersal species composition, and collected 106 species, 67 families, and 7 taxa of fisheries resources from the coastal ecosystem. Species were included 2 species in Ascidiacea, 2 species in Bivalvia, 6 in Cephalopoda, 22 in Crustacea, 5 in Echinodermata, 12 in Gastropoda, and 57 in Pisces. Diversity indices (Shannon index, H') showed seasonal variation with low value of 2.11 in winter, and high value of 2.63 in autumn. Main dominant species were Asterias amurensis, Pleuronectes yokohamae, Siphonalia spadicea fuscolineata, Trachurus japonicas, Sillago japonica, Conger myriaster, Volutharpa ampullaceal, Engraulis japonicus, Asterina pectinifera, and Portunus (Portunus) sanguinolentus that were occupied over 71.5% of total individuals, and 52.9% of wet weight. Seasonal variations of fisheries resources composition were discussed on correlationships with those of environmental factors in the coastal ecosystem of the Yongil Bay in Korea. Those results from this study will provide scientific data and information to develop the ecosystem-based coastal fisheries assessment and management system in Korea.

키워드

Seasonal variations;Fisheries resources composition;Coastal ecosystem;Yongil Bay;PCA

참고문헌

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피인용 문헌

  1. Maturity and Spawning of the Marbled Flounder Pseudopleuronectes yokohamae off the Coast of Pohang, East Sea vol.49, pp.3, 2016, https://doi.org/10.5322/JES.2012.21.10.1275
  2. Species composition and distribution property of dredge fishery in Yeongil Bay, Korea vol.52, pp.1, 2016, https://doi.org/10.5322/JES.2012.21.10.1275

과제정보

연구 과제번호 : 독도 및 심해 생태계자원조사

연구 과제 주관 기관 : 국립수산과학원