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http://dx.doi.org/10.5657/kfas.2009.42.3.297

Influence of Water Temperature During the Main Spawning Period on Anchovy Catch  

Lee, Chung-Il (Faculty of Marine Bioscience & Technology, Kangnung-Wonju National University)
Jang, Lee-Hyun (National Fisheries Research and Development Institute)
Park, Sung-Eun (National Fisheries Research and Development Institute)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.42, no.3, 2009 , pp. 297-301 More about this Journal
Abstract
The water temperature from 1980 to 2000 and the anchovy catch from 1990 to 2000 in the southeastern portion of the South Sea of Korea were used to illustrate the influence of water temperature on the catch of the anchovy, Engraulis japonica. 1993 and 1998 were selected as poor and good fishing years therefore, the horizontal and vertical distribution of water temperature and catch per unit effort in these years was compared. When the anchovy catch was lower, the water temperature at 10 m was also about $0-2^{\circ}C$ lower than during a normal year, which resulted in the formation of a weak thermocline. Conversely, when the anchovy catch was higher, the water temperature at 10m was $0-2^{\circ}C$ greater than during a normal year, which resulted in the formation of a strong thermocline at around 20 m.
Keywords
Anchovy; South Sea of Korea; Spawning period; Thermocline; Water temperature;
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