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http://dx.doi.org/10.3741/JKWRA.2013.46.1.1

Effect of Climate Change on Fish Habitat in the Nakdong River Watershed  

Kang, Hyeongsik (Div. of Water Environment, Korean Environment Institute)
Park, Min-Young (Div. of Water Environment, Korean Environment Institute)
Jang, Jae-Ho (Div. of Water Environment, Korean Environment Institute)
Publication Information
Journal of Korea Water Resources Association / v.46, no.1, 2013 , pp. 1-12 More about this Journal
Abstract
In this study, the potential effects of increased water temperature on fish habitat were analysed in the streams of Nakdong River watershed. The changes in suitable habitats for each fish species and in species number at a habitat site were predicted, based on the maximum thermal tolerances of 22 fish species. The estimated maximum thermal tolerance ranged between $27.7^{\circ}C$ and $33.1^{\circ}C$. Then, the increase of water temperature in 78-sites of Nakdong River watershed by 2100 was predicted by using the estimated air temperature data by 2100 in the literature and the regression analysis between air-temperature and water-temperature at each sites. The water temperature was estimated to have increased by $0.69^{\circ}C$, $1.76^{\circ}C$, and $2.32^{\circ}C$ in 2011~2040 (period S1), 2041~2070 (S2), and 2071~2100 (S3), respectively. With such increases in water temperature, the averaged suitable habitats for all 22 fish species would be influenced by 21.9%, 36.3%, and 51.4% in periods S1, S2, and S3, respectively.
Keywords
water temperature increase; fish; habitat; maximum thermal tolerances; Nakdong river;
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Times Cited By KSCI : 3  (Citation Analysis)
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