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Effect of Salinity on Survival and Growth of 3 Gobiidae  

Hwang, Un-Gi (National Fisheries Research & Development Institute, West Sea Fisheries Research Institute, Marine Ecological Risk Assessment Center)
Min, Eun-Yong (Department of Aquatic Life Medicine, Pukyong National University)
Kang, Ju-Chan (Department of Aquatic Life Medicine, Pukyong National University)
Publication Information
Korean Journal of Environmental Biology / v.30, no.1, 2012 , pp. 9-14 More about this Journal
Abstract
The gobiidae, $Tridentiger$ $trigonocephalus$, $Chasmichtthys$ $dolichognathus$ and $Favonigobius$ $gymnauchen$ were reared for 4 weeks under 0~33.6‰ salinity conditions to examine the effects of various salinity on its survival and growth. Survival rate of $C.$ $dolichognathus$ and $F.$ $gymnauchen$ were significantly declined below 3.4‰ and 0‰, respectively. Growth rate of $T.$ $trigonocephalus$ was significantly reduced 0‰ salinity. Growth rate of $C.$ $dolichognathus$ and $F.$ $gymnauchen$ exposed to ${\geq}$13.4‰ and ${\geq}$6.7‰ were significantly higher than those of gobiidae exposed to below ${\leq}$10.1‰ and ${\leq}$3.4‰ salinity, respectively. This study reveled that low salinity (${\leq}$3.4‰) reduced survival and growth rates of the 3 gobiidae suggesting potential influence on the natural mortality of gobiidae in the coastal areas.
Keywords
Gobiidae; salinity; survival; growth;
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