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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 516 - 524 (9page)
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초록· 키워드
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Objectives: The annual catch of the common squid Todarodes pacificus in Korean coastal waters has gradually increased since the late 1980s. We investigated the long-term effects of climate variability on the variation in catches of the squid in the offshore fisheries of Korea.
Methods: Moving average method, correlation analysis, and regression analysis were used to determine the relationship between the environmental factors and fluctuation in the catch of the squid during the past 30 years (1981- 2010). A ten-year moving average was calculated and used for each variable.
Results: Squid catches in Korean coastal waters increased over time, and there were significant variations within every ten years (p < 0.001). Air temperature, atmospheric pressure, and wind grade among the meteorological factors, alongside sea surface temperature (SST) and concentrations of phosphate phosphorous, and nitrite/nitrate nitrogen in the sea water increased and were positively related with the catch size of squid (p < 0.001). However, salinity decreased and was negatively related with the catch size (p < 0.001). The increase in air temperature and SST was almost parallel, although there was a time lag between the two factors.
Conclusion: These results suggest that there is a causal association between climate change and squid populations. Climate change, especially ocean warming, appears to have been largely favorable for squid range expansion into Korean seas. Although the expansion may be helpful for the human food supply, the safety of the squid caught should be monitored since the concentrations of phosphorous and nitrogen in the sea water increased, which indicates that Korean seas have grown gradually more polluted.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Bower JR / 1996 / Laboratory observations on Todarodes pacificus (Cephalopoda: Ommastrephidae)egg masses / American Malacological Bulletin 13 : 65 ~ 71
Cho KD / 2004 / Relationship between fishing condition of common squid and oceanic condition in the East Sea / Journal of the Korean Society for Marine Environment and Safet
Choi KH / 1997 / Fishing conditions of common squid (Todarodes paci cus Steenstrup) in Korean waters. I. Spatio-temporal distribution of common squid related to the changes
Choi KH / 2008 / Distribution and migration of Japanese common squid, Todarodes pacificus, in the southwestern part of the East(Japan) Sea / Fisheries Research 91 : 281 ~ 290
FAO / / Summary of the world squid catch in 2002, in Review of World Squid Resources
Cho KD / 2004 / Relationship between fishing condition of common squid and oceanic condition in the East Sea / Journal of the Korean Society for Marine Environment and Safet
Choi KH / 1997 / Fishing conditions of common squid (Todarodes paci cus Steenstrup) in Korean waters. I. Spatio-temporal distribution of common squid related to the changes
Choi KH / 2008 / Distribution and migration of Japanese common squid, Todarodes pacificus, in the southwestern part of the East(Japan) Sea / Fisheries Research 91 : 281 ~ 290
FAO / / Summary of the world squid catch in 2002, in Review of World Squid Resources
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