수온과 염분이 양태 (Platycephalus indicus) 난발생에 미치는 영향

• 영문명: Effect of Temperature and Salinity on the Egg Development of Platycephalus indicus
• 발행기관: 전남대학교 수산과학연구소
• 저자명: 윤지원 이성훈 김희진 이진 한경호
• 간행물 정보: 『수산과학연구소 논문집』제31권 제1호, 7~12쪽, 전체 6쪽
• 주제분류: 농수해양 > 수산학
• 파일형태: PDF
• 발행일자: 2022.02.28

영문 초록

Platycephalus indicus is a shallow sea fish, and it is a major fish species that contributes to the income increase of the aquaculture industry through seedling production and fry release. In this study, for the study on the ecology and early growth of the P. indicus, egg development of the P. indicus was observed according to temperature and salinity changes. The eggs of the P. indicus were spherical and separable, and the diameter of the fertilized eggs was 1.0~1.1 mm. The time taken and hatching rate according to the water temperature were 51.1 hours at 19.0℃, the hatching rate was 81.3%, 50.4 hours at 22.0℃, the hatching rate was 82.3%, 49.8 hours at 25.0℃, the hatching rate was 72.4%, 13.0℃. It did not hatch at 16.0℃. The time and hatching rate according to the salinity were 53.6 hours at 14.0 psu, the hatching rate was 42.1%, 52.0 hours and 74.2% at 21.0 psu, 50.5 hours and 82.1% at 28.0 psu, and 50.1 hours and 84.3% at 32.0 psu. These results will be utilized as basic biological data for the production of artificial seedlings of farmed fish species.

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키워드

Platycephalus indicus Water temperature Salinity Hatching rate Egg development