한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제29권1호
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- Pages.115-123
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- 1996
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
금강하구 풀망둑 (Synechogobius hasta)의 생태
Ecology of Synechogobius hasta (Pisces : Gobiidae) in the Kum River Estuary, Korea
- 최윤 (전북대학교 자연과학대학 생물학과) ;
- 김익수 (전북대학교 자연과학대학 생물학과) ;
- 유봉석 (군산대학교 해양산업대학 양식학과) ;
- 박종영 (전북대학교 자연과학대학 생물학과)
- CHOI Youn (Department of Biology, Chonbuk National University) ;
- KIM Ik-Soo (Department of Biology, Chonbuk National University) ;
- RYU Bong-Suk (Department of Aquaculture, Kunsan National University) ;
- PARK Jong-Young (Department of Biology, Chonbuk National University)
- 발행 : 1996.01.01
초록
서해 군산연안에 서식하는 풀망둑의 생태 연구를 위해 1994년 5월부터 1995년 6월까지 매월 표본을 채집하였으며, 서식환경, 난소의 성숙과정과 산란기, 포란수, 자어의 출현과 착저(着底)시기, 성장, 먹이생물 등을 분석하였다. 본 종의 난소 발달과정은
For ecological study of Synechogobius hasta the environmental factors, length composition, stages of ovarian maturation, growth, and stomach contents of this species were examined. The samples were collected from the Kum River estuary from May, 1994 to June, 1995. The ovarian egg development of this species underwent 4 stages : the oogonium stage in October to November, growth stage in December to February of next year, maturity stage in February to April, and spawning stage in late April to middle May. The peak spawning period appeared in early to middle May. The fecundity varied from 8,600 to 49,000 showing a exponential increase by body size. The minimum size having matured eggs was 225 mm in total length (standard length 180 mm). The larvae smaller than 10 mm appeared in late May, and young fish of total length