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http://dx.doi.org/10.5657/kfas.2002.35.5.497

Fluctuation of Bag-net Catches off Wando, Korea and the Effect of Sea Water Temperature  

Kim Jin Koo (Mokpo Laboratory, South Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
Choi Ok In (kunssn Laboratory, West Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
Chang Dae Soo (South Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
Kim Joo Il (Fisheries Resources Department National Fisheries Research and Development Institute)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.35, no.5, 2002 , pp. 497-503 More about this Journal
Abstract
Fluctuation of the yield of anchovy, Engraulis japonicus and species composition of by-catch were examined to clarify the effect of sea water temperature using samples by bag net off Wando, west southern of Korea from 1999 to 2001. In 1999 and 2001, sea water temperature were higher than 20$^{\circ}C$ from July to October, However that of 2000 was higher than 20$^{\circ}C$ from August to September owing to the strong tidal front formed in south western area of Korea from late spring to summer. Fish captured by bag net off Wando was composed of approximately 73 species which belonging to the juveniles and young stages. Among them, Gymnapogon urospilotus, Lagocephalus sp., Omobranchus elegans, Platycephalus indicus and Konosirus punctatus did not appeared in 2000 when tidal front were developed stronger than in 1999 and 2001. Yield of anchovy landed at fishery of Wando were 1,000 M/T in 1999, 620 M/T in 2000, 1,056 M/T in 2001 respectively and have a tendency to increase from July to August and reach to maximum from August to October.
Keywords
Fisheries oceanography; Bag net; Tidal front Engraulis japonicus;
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