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낙동강 하구역에 출현하는 청어(Clupea pallasii) 자치어의 식성
Feeding Habits of Larval Clupea pallasii from the Nakdong River Estuary, Korea 원문보기

한국수산과학회지 = Korean journal of fisheries and aquatic sciences, v.48 no.4, 2015년, pp.498 - 506  

최희찬 (국립수산과학원 수산해양종합정보과) ,  박주면 (맥쿼리대학교 생물학부) ,  윤석현 (국립수산과학원 수산해양종합정보과) ,  허성회 (부경대학교 해양학과)

Abstract AI-Helper 아이콘AI-Helper

We examined the feeding habits of larval Clupea pallasii using 148 specimens collected from December 2010 to April 2011 in the Nakdong River estuary, Korea. We found that larval C. pallasii [8.3-26.0 mm NL (notochord length)] are carnivorous, consuming mainly copepods, rotifers, cirripeds, and free-...

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  • 한국 남해안의 대표적인 어류 산란 및 성육장인 낙동강 하구역에 출현하는 어종의 초기생활사에 대한 종합적인 연구의 일환으로 중요한 상업성 어종 중 하나인 청어 자치어의 주먹이 생물을 파악하고, 성장에 따른 먹이변화와 일주기 섭식생태(dielfeeding pattern)를 파악하고자 한다.
본문요약 정보가 도움이 되었나요?

질의응답

핵심어 질문 논문에서 추출한 답변
청어는 무엇인가? 청어(Clupea pallasii)는 한류성 어류로 우리나라 동해 및 서해, 일본북부, 발해만, 북태평양 등에 분포하는 부어류이다(NFRDI, 2004). 청어의 산란기는 겨울에서 봄까지로 긴 산란기를 보이지만, 주 산란기는 3-4월이며, 해조류 군락이 있는 얕은 연안이나 내만으로 떼를 이루어 몰려와 해조류와 같은 기질에 알을 붙이는 산란습성을 보인다(NFRDI, 2004).
청어의 산란기는 언제인가? 청어(Clupea pallasii)는 한류성 어류로 우리나라 동해 및 서해, 일본북부, 발해만, 북태평양 등에 분포하는 부어류이다(NFRDI, 2004). 청어의 산란기는 겨울에서 봄까지로 긴 산란기를 보이지만, 주 산란기는 3-4월이며, 해조류 군락이 있는 얕은 연안이나 내만으로 떼를 이루어 몰려와 해조류와 같은 기질에 알을 붙이는 산란습성을 보인다(NFRDI, 2004).
낙동강 하구역에 출현하는 청어 자치어의 식성을 알아보기 위한 실험에서 장내용물은 어떤 장비를 이용해서 동정하였는가? 1 mm까지 측정하여 해부현미경(Olympus SZ40) 하에서 위장을 분리하였다. 장내용물은 쌍안실체현미경(Olympus CH2)을 이용하여 먹이 종류별로 구분하였고, 출현량이 많은 먹이생물은 가능한 속(genus)수준까지 동정하였으며, 그 외 먹이생물은 그 보다 상위 분류단계까지만 동정하였다. 먹이생물의 동정에는 Yamaji (1984), Cho (1993), Yoo (1995) 등을 참고하였다.
질의응답 정보가 도움이 되었나요?

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