Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Survival and Growth in Larval Stage of Induced Hybrid between Olive Flounder (Paralichthys olivaceus) and Spotted Flounder (Verasper variegatus)

유도된 넙치와 범가자미간 잡종 자어의 생존 및 성장에 관한 연구

  • Kim Kyung-Kil (Fish culture Division, National Fisheries Research and Development Agency) ;
  • Bang In Chul (Fish culture Division, National Fisheries Research and Development Agency) ;
  • Kim Yoon (Fish culture Division, National Fisheries Research and Development Agency) ;
  • Kim Dong Soo (Department of Aquaculture, National Fisheries University of Pusan)
  • 김경길 (국립수산진흥원 어류양식과) ;
  • 방인철 (국립수산진흥원 어류양식과) ;
  • 김윤 (국립수산진흥원 어류양식과) ;
  • 김동수 (부산수산대학교 양식학과)
  • Published : 1995.02.01
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Abstract

Hybrid fish were induced between olive flounder (Paralichthys olivaceus) female and spotted flounder (Verasper variegatus) male by artificial inseminations. Survival, growth and morphological changes in larval stage of hybirds were examined and compared to their parental species. Survival and growth up to 25 days after hatching of the hybrids were more similar to those of olive flounder than to those of spotted flounder (P<0.05). The ratio of yolk length to yolk width in hybrids was similar to that of female parents (P<0.05). The oil globule were resorbed within 18 days after hatching in hybrids and 14 days after hatching in olive flounder, and spotted flounder has no oil globule. These results indicated that survival, growth and morphological changes in larval stage of hybrids were similar to those of maternal olive flounder.

넙치(Paralichthys olivaceus) 암컷과 범가자미(Verasper variegatus) 수컷간의 잡종을 유도하여 넙치, 범가자미 및 잡종을 대상으로 변태기 전인 부화후 25일째까지 자어의 생존율 및 성장을 비교 조사하였다. 실험 종료시 잡종의 생존율과 성장은 양친으로 사용된 두 종 중 넙치와 유사하였다(P>0.05). 부화자어의 형태에서 잡종은 난황의 길이 대 폭의 비에서 넙치와 좀 더 많이 닮았고, 수온 $17\pm1^{\circ}C$에서 유구가 완전히 소실되는 기간은 잡종이 18일, 넙치가 14일이었으며 범가자미에서는 유구가 관찰되지 않았다. 조사 결과 변태기전까지의 잡종은 그의 생존율 및 성장에서 범가자미 보다 넙치와 더 유사한 경향을 나타내었다(P>0.05).

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