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Tolerance of Juvenile gobiidae, Tridentiger trigonocephalus Exposed to Various Salinity  

강주찬 (부경대학교 수산생명의학과)
지정훈 (부경대학교 수산생명의학과)
김성길 (부경대학교 수산생명의학과)
박경수 (국립수산과학원 서해수산연구소)
박승윤 (국립수산과학원 동해수산연구소)
Publication Information
Korean Journal of Environmental Biology / v.22, no.1, 2004 , pp. 153-158 More about this Journal
Abstract
The juvenile gobiidae, Tridentiger trigonocephatus were reared for 40 days under the salinity ranges between 0 and 33.6$\textperthousand$ to examine the effects of salinity on the survival, growth and oxygen consumption rates of the fish. Survival rates were significantly declined for the fish reared under 3.4$\textperthousand$, and daily growth rates were also reduced below 6.7$\textperthousand$ Body length and weight of gobiids reared below 6.7$\textperthousand$ were smaller than those reared above 13.4$\textperthousand$. Oxygen consumption rates in the salinity conditions $\leq$ 10.1$\textperthousand$ were significantly reduced with decreasing salinity. This study reveled that low salinity reduced survival, growth and oxygen consumption rates of the juvenile gobiids suggesting potential influence on the natural mortality of Tridentiger trigonocephalus in the estuarine areas where experience the extreme salinity fluctuations in Korean waters.
Keywords
Tridentiger trigonocephalus; salinity tolerance; survival; growth; oxygen consumption;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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