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통영-거제해역 수하연 양식 참굴(Crassostrea gigas)의 비만도 장기변화와영향 요인 고찰

Long-term Change and Factors Affecting the Fatness of the Pacific Oyster Crassostrea gigas in Tongyeong-Geoje Bays, Korea

심정희|구준호|이상준|정래홍
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)|2021.08|한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)|제54권 제4호|pp. 434-444|DOI https://doi.org/10.5657/KFAS.2021.0434

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참고문헌

키워드

Pacific oysterCondition indexFatnessEdible portion yieldTongyeong-Geoje Bay
주제분류수산학

초록

The decrease in fatness of the Pacific oyster Crassostrea gigas, which consequently results in decrease in the profit ofaquaculture industry, has become a source of serious concern in southeast coast of Korea. The ratio of flesh (edibleportion) to total oyster weight, commonly called edible portion yield (“suyul” in Korean), have been used as a fatnessindex for the healthy and valuable state of oyster from the early stage of oyster farming in Korea. More than 360 datasets were collected from early culturing periods (in the 1970s) to the present from approximately 15 published literaturesto evaluate the long-term fatness trend of oyster, reared particularly in submerged longline culturing system inGyeongsangnam-do province. Slight decrease in oyster fatness during the 1970s to 1990s was detected in Tongyeongand Geoje Bays; however, from the 1990s to the present, clear decreasing trends were observed with a decrease of0.04-0.08% year-1, especially during harvest season. Oyster mass production per unit area almost doubled within ashort period in the early 2000s; however, changes in coastal environment factors inhibited the fattening of shellfishfrom the mid 1990s. These results indicate that the severe competition in feeding and low biological production inwater column might be some convincing reasons for the decrease in fatness of oyster from the 1990s, in Tongyeongand Geoje Bays, Korea.

Abstract

The decrease in fatness of the Pacific oyster Crassostrea gigas, which consequently results in decrease in the profit ofaquaculture industry, has become a source of serious concern in southeast coast of Korea. The ratio of flesh (edibleportion) to total oyster weight, commonly called edible portion yield (“suyul” in Korean), have been used as a fatnessindex for the healthy and valuable state of oyster from the early stage of oyster farming in Korea. More than 360 datasets were collected from early culturing periods (in the 1970s) to the present from approximately 15 published literaturesto evaluate the long-term fatness trend of oyster, reared particularly in submerged longline culturing system inGyeongsangnam-do province. Slight decrease in oyster fatness during the 1970s to 1990s was detected in Tongyeongand Geoje Bays; however, from the 1990s to the present, clear decreasing trends were observed with a decrease of0.04-0.08% year-1, especially during harvest season. Oyster mass production per unit area almost doubled within ashort period in the early 2000s; however, changes in coastal environment factors inhibited the fattening of shellfishfrom the mid 1990s. These results indicate that the severe competition in feeding and low biological production inwater column might be some convincing reasons for the decrease in fatness of oyster from the 1990s, in Tongyeongand Geoje Bays, Korea.

참고문헌 (44)

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관련 논문AI추천

Seasonal Variation of Edible Portion Yield and Coefficient of Fatness of Pacific Oyster (Crassostrea gigas) in Kamak Bay, KoreaChoon-KyuPark한국수산과학회 · Fisheries and Aquatic Sciences2003 · 제6권 제4호Studies for the Sustainable Management of Oyster Farms in Pukman Bay, Korea: Estimation of Carrying Capacity from Food Availability이상준, 정우건, 조상만한국수산과학회 · Fisheries and Aquatic Sciences2009 · 제12권 제2호가막만 양식 굴, Crassostrea gigas의 산란에 따른 체조성과 생존율 변화김응오, 김철원, 박민우, 손상규, 정춘구, 정희동한국수산과학회 · 한국수산과학회지2009 · 제42권 제5호경남 거제만 및 자란만 굴(Crassostrea gigas)의 일반성분, pH, 글리코겐 함량의 월별 변화김민아, 박재승, 신순범, 심길보, 오은경, 임치원, 박큰바위한국수산과학회 · 한국수산과학회지2014 · 제47권 제6호Seasonal Changes in Reproductive Condition of The Pacific Oysters, Crassostrea gigas(Thunberg) from Suspended Culture in Gosung Bay, KoreaKwang-SikChoi, Sang-GyunKang, ThaoT.T.Ngo한국환경생물학회 · 환경생물2002 · 제20권 제3호The Annual Reproductive Cycle, Proximate Composition, Fatty Acid and Amino Acid Content of Pacific Oyster, Crassostrea gigas (Magallana gigas), in Gadeok-do, Korea문지성, 박수진, 서봉승, 이예인, 이희정, 조인규, 최윤희, 허영백, 황수연한국발생생물학회 · 발생과 생식2023 · 제27권 제3호

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