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멸종위기에 처한 한둑중개(Cottus hangiongensis)의 산란습성 및 초기생활사
Spawning Behavior and Early Life History of Endangered Cottus hangiongensis

서원일    (전라남도수산기술사업소영광지소   ); 유동재    (경상북도민물고기연구센터   ); 변순규    (국립수산과학원 동해특성화연구센터   ); 김이청    (국립수산과학원 내수연양식연구센터   ); 이성훈    (전남대학교 해양기술학부   ); 연인호    (전남대학교 해양기술학부   ); 한경호    (전남대학교 해양기술학부   ); 임후순    (경상북도 수산진흥과   ); 이배익    (경상북도 수산진흥과  );
  • 초록

    Spawning behavior and early life history of the tuman river sculpin, Cottus hangiongensis were studied in the laboratory and in the field at Wangpi Stream, Gyeongsangbuk-do, Korea, from January to December, 2007. The spawning ground was in the lower Wangpi Stream, which is a shallow region about 40cm or less in depth. During the spawning period, from March to April, mature males made nest cavities under stone 10 which they led a gravid female. The male and female then turned upside down, and spawning and fertilization occurred onto the ceiling of the nest cavity. After spawning, the male chased the female from the nest and mated with several other females. Fertilized eggs were spherical in shape, demersal, adhesive, transparent and yellow in color, measuring 1.86 mm (1.79~1.93 mm) in diameter. A mean of 17(12~22) various-sized oil globules were counted in the yolk. Granular materials formed a mass in the yolk. Fertilized eggs hatched at 256 hrs, 10 minutes after the morula stage under water temperature of $15.0{\sim}18.0^{\circ}C$ . Newly hatched larvae 9.34 mm (9.02~9.69 mm. n=10) in total length (TL) had a large yolk At 14 days after hatching, larvae 11.40 mm (11.07~11.72 mm, n=10) in TL transformed to the postlarval stage. At 41 days after hatching, postlarvae of 18.42 mm (17.31~18.62 mm, n=10) in TL had reached the juvenile stage. The result of this study indicate that Cottus hangiongensis has the spawning ground in the lower stream and the amphidromous life history which is the different from that of Cottus poecilopus.


  • 주제어

    Cottus hangiongensis .   Spawning behavior .   Early life history .   Egg development .   Larvae .   Juveniles.  

  • 참고문헌 (19)

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    19. Yabe M. 1985. Comparative osteology and myology of the superfamily Cottoidea (Pisces: Scorpaenifonnes), and its phylogenetic classfication. Mem Fac Fish Hokkaido Univ 32, 1-130. 
  • 이 논문을 인용한 문헌 (1)

    1. 2015. "" Development & reproduction = 발생과 생식, 19(1): 25~31     

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