전어 (Konosirus punctatus) 자치어의 체형변화 및 비늘형성

• 영문명: Morphological Changes and Scale Formation in Juvenile Konosirus punctatus
• 발행기관: 전남대학교 수산과학연구소
• 저자명: 김관석 성하영 차상훈 이성훈 한경호
• 간행물 정보: 『수산과학연구소 논문집』제32권 제1호, 25~29쪽, 전체 5쪽
• 주제분류: 농수해양 > 수산학
• 파일형태: PDF
• 발행일자: 2023.02.28

영문 초록

In the study, we observed the morphological changes and scale formation of Konosirus punctatus juvenile, which are collected from he estuary of the Mankyeong River and fertilized using artificial insemination. The hatched juveniles were sorted 15 per day, and the relative growth was assessed through measurements of total length, standard length, anus length, and body height. The process of scale formation was also observed in the hatched juveniles. Regarding morphological changes, body length showed consistent relative growth from immediately after hatching to the juvenile stage. Body height exhibited higher relative growth values than the overall length starting from the post-larval stage. The head length showed consistent relative growth until the post-larval stage and then decreased. The anus length showed low relative growth until the post-larval stage but increased steadily from the juvenile stage onwards. Scales first appeared in the post-larval stage and completed scale formation throughout the body just before transitioning to the juvenile stage, starting from the posterior part of the operculum, above the pectoral fin, at the anterior part of the anal fin, and the posterior part of the anal fin. These research results can be used for management and protection of fish species as resources of biological characteristics.

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키워드

Konosirus punctatus Morphological change Scale formation Juvenile Larvae