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http://dx.doi.org/10.11626/KJEB.2020.38.1.030

Assessment of fish stocks and economic value in accordance with fishway renovation: Case study of Samcheokoshipcheon0010 Weir  

Moon, Woon-Ki (Chungrok Environmental Ecosystem Research Institute)
Bae, Dae-Yeul (Chungrok Environmental Ecosystem Research Institute)
Kim, Do-Hyun (Chungrok Environmental Ecosystem Research Institute)
Shin, Hyun-Beom (Korea Rural Community Corporation)
Suh, Jung Bin (Korea Rural Community Corporation)
Lim, Kyeong Hun (Korea Rural Community Corporation)
Lee, Eui-Haeng (Korea Rural Community Corporation)
Yoo, Jae-Sang (Hanmac Engineering Co., Ltd)
An, Kwang-Guk (Department of Biological Science, College of Bioscience and Biotechnology, Chungnam National University)
Kim, Jai-Ku (Chungrok Environmental Ecosystem Research Institute)
Publication Information
Korean Journal of Environmental Biology / v.38, no.1, 2020 , pp. 30-39 More about this Journal
Abstract
The changes in fish stock and biomass before and after fishway renovation located in a Korean estuary were studied and fluctuations in the economic value of the fish resources were estimated. The target fishway located in the east coast area in Korea was renovated in 2014 from the small fish ladder to the ice-harbor fishway. Monitoring was continued for five consecutive years after the renovation(2015 to 2019). Since the renovation of the fish passage, the economic values increased with increases in the fishery resources, except for in 2016 when the drought impact was severe. The yearly average incremental increase in the five years after the renovation was about 227%. The increase in economic value is believed to be due to the increased population of migratory fish as a result of habitat expansion. The exponential rise model showed an increase in economic value with increasing fishery resources (R2=0.896). The model coefficient contributing to economic analysis was 0.582 and the maximum economic value after the renovation was estimated at about 30.4 million. The economic value would be a useful index for quantitative comparison in terms of ecosystem services before and after renovation.
Keywords
fishway; fish stocks; economic value; ecosystem services;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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