Climate variability and its effects on major fisheries in Korea |
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Authors: | Suam Kim Chang-Ik Zhang Jin-Yeong Kim Jae-Ho Oh Sukyung Kang Jae Bong Lee |
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Institution: | (1) Pukyong National University, 608-737 Busan, Korea;(2) National Fisheries Research and Development Institute, 619-705 Busan, Korea |
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Abstract: | Understanding in climate effects on marine ecosystem is essential to utilize, predict, and conserve marine living resources
in the 21s t century. In this review paper, we summariz ed t h e past history and current status of Korean fisheries as well
as the changes in climate and oceanographic phenomena since the 1960s. Ocean ecosystems in Korean waters can be divided into
three, based on the marine commercial fish catches; the demersal ecosystem in the Yellow Sea and the East China Sea, the pelagic
ecosystem in the Tsushima Warm Current from the East China Sea to the East/Japan Sea, and the demersal ecosystem in the northern
part of the East/Japan Sea. Through the interdisciplinary retrospective analysis using available fisheries, oceanographic,
and meteorological information in three important fish communities, the trend patterns in major commercial catches and the
relationship between climate/ environmental variability and responses of fish populations were identified. Much evidence revealed
that marine ecosystems, including the fish community in Korean waters, has been seriously affected by oceanographic changes,
and each species has responded differently. In general, species diversity is lessening, and mean trophic level of each ecosystem
has decreased during the last 3~4 decades. Future changes in fisheries due to global warming are also considered for major
fisheries and aquaculture in Korean waters. |
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Keywords: | climate change marine ecosystem fisheries Korean waters |
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