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연곡천 하류에서 소상하는 연어(Chum salmon, Oncorhynchus keta)의 이동특성
Behavior Patterns during Upstream Migration of Chum Salmon (Oncorhynchus Keta) in the Lower Reaches of Yeon-gok Stream in Eastern Korea 원문보기

Journal of environmental science international = 한국환경과학회지, v.29 no.9, 2020년, pp.885 - 905  

김범식 (강릉원주대학교 해양자원육성학과) ,  정용우 (강릉원주대학교 해양자원육성학과) ,  정해근 (국립수산과학원 동해수산연구소 자원환경과) ,  박주면 (한국해양과학기술원 동해연구소 독도전문연구센터) ,  이철호 (강릉원주대학교 산학협력단) ,  이충일 (강릉원주대학교 해양자원육성학과)

Abstract AI-Helper 아이콘AI-Helper

This study described the characteristics of the upstream migration of salmon (Chum salmon, Oncorhynchus keta) along Yeon-gok Stream in the eastern coastal region of Korea from October 24 to November 9, 2018 using radio tag and data storage tag loggers for the detection of the locations of tagged sal...

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AI 본문요약
AI-Helper 아이콘 AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

  • 본 연구는 우리나라 동해안에 위치한 연곡천(강원도 강릉시) 하류에서 소상하는 연어의 이동특성을 알아보고자 했으며 연어 위치 추적이 가능한 전자태그를 이용하여 소상하는 연어의 이동특성을 분석하였다.
  • 본 연구는 우리나라 하천(연곡천)에서 소상하는 연어의 이동특성을 조사하였다. 연어 이동특성 조사는 위치추적이 가능한 radio tag를 이용해 방류 시각과 방류 개체수를 달리한 4가지 유형으로 진행하였고, 하천 환경 조사(수질, 지형 등)를 병행하였다.
본문요약 정보가 도움이 되었나요?

질의응답

핵심어 질문 논문에서 추출한 답변
연어란 무엇인가? 연어(Chum salmon, Oncorhynchus keta)는 북태평양에 서식하는 6종의 연어과 어류(Chum salmon, Coho salmon, Chinook salmon, Sockeye salmon, Pink salmon, Cherry salmon) 중 하나로 하천에서 태어나 바다에서 성장 과정을 거친 후 다시 하천으로 돌아와 산란하는 모천회귀성 어종이다(Hiyama et al., 1967; Dittman and Quinn, 1996; Kim et al.
연어 이동 및 행동 특성에 영향을 주는 환경 조건은? , 2006). 하지만 연어 이동 및 행동 특성은 하천의 환경 조건(유속, 지형, 수온, 경쟁관계 등)과 이동거리 등에 따라 다르게 나타난다(Gilhousen, 1980; Bernatchez and Dodson, 1987; Brett, 1995; Hinch et al., 2002; Makiguchi et al.
우리나라 연어의 하천 회귀에서 나타나는 특징은? 이와 같이 우리나라 하천으로 돌아온 연어는 하구로부터 대략 10 km 이내의 상대적으로 짧은 거리를 이동하고, 그 과정에서 다양한 지형, 저질, 수질 등의 환경 변화를 겪으며 산란, 수정, 부화 활동을 하게 된다. 우리나라 하천으로 회귀하는 연어는 다른 나라(예: 캐나다, 미국, 러시아, 일본 등) 하천으로 회귀하는 연어에 비해 바다에서 이동하는 거리가 가장 긴 반면, 지리적인 특성으로 인해 하천에서는 상대적으로 짧은 거리를 이동하는 특징이 있다(Jung et al., 2001; Urawa, 2001; Seo et al.
질의응답 정보가 도움이 되었나요?

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