Habitat Suitability Index Calculation According to Changes in the Fisheries of the Seom River After Hoengseong Dam Construction

Sang-Hui Hwang; Ui-Seok Kim; Sang-Don Byeon; Jae-Seok Choi; Jin-Hyuk An; Eun-Mi Hong

doi:10.22698/jales.20220038

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2022 Vol.34, Issue 3 Preview Page Next Page

Research Article

Habitat Suitability Index Calculation According to Changes in the Fisheries of the Seom River After Hoengseong Dam Construction 횡성댐 건설 후 섬강 어류상 변화에 따른 서식지적합도지수 산정

31 December 2022. pp. 388-402

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Abstract

In this study, the habitat suitability index (HSI) was calculated through on-site monitoring twice on July 9－10, 2021 and November 6, 2021. During the site monitoring 1,625 objects comprising 35 species belonging to nine families were collected from six survey stations. In addition, physical data, such as depth and velocity, and biological data, such as fish species and populations, were collected. The dominant and subdominant species were Pungtungia herzi (28.00%) and Zacco koreanus (19.26%), respectively, followed by Zacco platypus (13.72%), Rhodeus pseudosericeus (7.63%), Pseudogobio esocinus (3.75%), Coreoleuciscus splendidus (2.52%), Acheilognathus rhombeus (2.03%), and Acheilognathus lanceolatus (2.03%). To calculate the HSI using the Instream Flow and Aquatic Systems Group method, physical information, such as depth and velocity, were used from three selected fish species. P. herzi was selected as the dominant species, and Z. platypus and Z. koreanus as the subdominant species. For P. herzi, the water depth was 0.5－0.6 m and the velocity was 0.0–0.1 m/s. For Z. platypus and Z. koreanus, the water depths were 0.3－0.5 m and 0.4–0.5 m, respectively, while the velocity was 0.0–0.1 m/s for both species. These species have an HSI value of 1.0 in this range. The HSI developed in this study may be utilized to calculate environmental ecological flow and improve river health. Additionally, it is judged to be highly useful as basic data for river restoration plans.

Keywords

Aquatic ecosystem

Ecological flow

HSI

IFASG

Seom river

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Information

Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
Publisher(Ko) :강원대학교 농업생명과학대학 농업생명과학연구원
Journal Title :Journal of Agricultural, Life and Environmental Sciences
Journal Title(Ko) :농업생명환경연구
Volume : 34
No :3
Pages :388-402
Received Date : 2022-11-19
Revised Date : 2022-12-01
Accepted Date : 2022-12-04
DOI :https://doi.org/10.22698/jales.20220038

Journal of Agricultural, Life and Environmental Sciences ISSN:2233-8322(Print) 2508-870X(Online) 농업생명환경연구

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