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2023 Vol.35, Issue 4 Preview Page

Research Article

Length–weight Relationship and Condition Factor of The Invasive Fish Species Brown Trout (Salmo trutta) in Soyang River

소양강에 분포하는 생태계교란어종 브라운송어(Salmo trutta)의 성장도 및 비만도 분석

Jaehoon Kim1
,
Doupyo Hong1
,
Jongjin Kim2
,
Bumjun Kim1
,
Hekap Kim3
,
Jaeseok Choi4*
김 재훈1
,
홍 두표1
,
김 종진2
,
김 범준1
,
김 희갑3
,
최 재석4*
1MS Student, Department of Environmental Science, Kangwon National University, Chuncheon 24341, Korea
2Student, Department of Natural Resources and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
3Professor, School of Natural Resources and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
4Research Professir, Institute of Environmental Research, Kangwon National University, Chuncheon 24341, Korea
1강원대학교 자연과학대학 환경학과 석사과정
2강원대학교 농업생명과학대학 에코환경학과 학부과정
3강원대학교 농업생명과학대학 환경융합학부 교수
4강원대학교 환경연구소 연구교수
*Corresponding Author
31 December 2023. pp. 604-617
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Abstract

This study examined the habitat and settlement patterns of Brown Trout (Salmo trutta), designated as an ecosystem-disrupting species in 2022. A total of 348 individuals were captured from the Soyang River area in Chuncheon, Gangwon do, South Korea, which is a domestic habitat of Brown Trout. Monthly surveys were conducted from May 2022 to May 2023. Age structure analysis revealed that individuals with sizes ranging from 10 to 50 mm were classified as age 0 (0+), 40 to 90 mm as age 1, and 70 to 160 mm as age 2. The length–weight relationship did not exceed 3.00 in October and November 2022 and April 2023. The condition factor showed temporary poor growth, with negative (-) values in June, October, and November 2022 and April 2023. However, the overall length-weight relationship was 3.03, and the condition factor was positive (+), indicating good growth.

Keywords
Age Distribution
Disturbance
Exotic Species
Population
Water Ecosystem
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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 : 35
  • No :4
  • Pages :604-617
  • Received Date : 2023-10-31
  • Revised Date : 2023-12-07
  • Accepted Date : 2023-12-08
  • DOI :https://doi.org/10.22698/jales.20230049
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