An Efficiency Analysis of a Nature-Like Fishway for Freshwater Fish Ascending a Large Korean River

Water 2016, 8(1), 3; doi:10.3390/w8010003

Author 

Jeong-Hui Kim ¹

, Ju-Duk Yoon ²

, Seung-Ho Baek ¹

, Sang-Hyeon Park ³

, Jin-Woong Lee ¹

, Jae-An Lee ⁴

 and Min-Ho Jang ^1,* 

¹

Department of Biology Education, Kongju National University, Gongju 32588, Korea

²

Biological Resource Research Center, Kongju National University, Gongju 32588, Korea

³

Bio Monitoring Center, Daejeon 34576, Korea

⁴

Water Environment Research Department, Watershed Ecology Research Team, Incheon 22689, Korea

^*

Author to whom correspondence should be addressed. 

Academic Editor: Young-Seuk Park

Received: 5 November 2015 / Revised: 10 December 2015 / Accepted: 14 December 2015 / Published: 24 December 2015

(This article belongs to the Special Issue Ecological Monitoring, Assessment, and Management in Freshwater Systems)

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Abstract 

Using traps and passive integrated transponder (PIT) telemetry, we investigated the effectiveness of the nature-like fishway installed at Sangju Weir on the Nakdong River, Korea. In 11 regular checks over the study period, 1474 individuals classified into 19 species belonging to 5 families were collected by the traps, representing 66% of the species inhabiting the main channel of the Nakdong River. PIT tags were applied to 1615 individuals belonging to 22 species, revealing fishway attraction and passing rates of 20.7% and 14.5%, respectively. Interspecific differences were also shown. For 63.2% of fishes, it took more than a day to pass through the fishway. Some individuals spent a longer time (>28 days) inside the fishway, suggesting the fishway was also being used for purposes other than passage. In this study, we verified species diversity of fish using a nature-like fishway installed in a large river in Korea. The results of this study provide a useful contribution to the development of fishways suitable for fish species endemic to Korea and for non-salmonid fish species worldwide. View Full-Text

Keywords: nature-like fishway;  trap;  PIT telemetry;  attraction efficiency;  passage efficiency

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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