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논문 기본 정보

자료유형
학술저널
저자정보
양상근 (국립수산과학원) 김정현 (국립수산과학원) 김효원 (국립수산과학원) 안철민 (국립수산과학원) 지승철 (국립수산과학원) 정민환 (국립수산과학원) 명정인 (국립수산과학원) 이영돈 (제주대학교) 김대중 (국립수산과학원)
저널정보
한국수산해양교육학회 수산해양교육연구 수산해양교육연구 제30권 제5호(통권 제95호)
발행연도
2018.10
수록면
1,866 - 1,875 (10page)
DOI
10.13000/JFMSE.2018.10.30.5.1866

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초록· 키워드

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This study aimed to increase the survival rate of yellowtail kingfish (Seriola lalandi) larvae. We investigated, from hatching to the breeding period, the growth and survival rate of larvae as well as the the survival rate upon starvation, yolk resorption, mouth opening time, and change in mouth size. The survival activity index (SAI) of larvae at water temperatures between 20 and 28℃ ranged from 9.2 to 0.9, increasing with low temperatures (p<0.05). Furthermore, the yolk and oil globule resorption time reduced with elevated temperatures. Thus, the time taken to resorb 95% of the yolk was 72 and 84 hours after hatching at water temperatures of 24℃ and 20 to 22℃, respectively. The time of onset of larval mouth opening (y) showed a linear relationship with water temperature (x) that may be represented as: Y = -12.5X + 82 (r² = 0.959). The correlation between the total length (x) and upper jaw length (y) of the larvae also exhibited a linear relationship, from the onset of mouth opening behavior until 96 hours after and at a water temperature of 22℃, expressed as the equation: y = 0.069x (r² = 0.778). In addition, 72 hours after hatching, the upper jaw length was 0.259 ± 0.039 ㎜; rotifer feed was found in the intestinal tract of larvae from this time point on. Moreover, the total length and survival rate (both 60 days after hatching [DAH]), the annual growth rate (AGR), and specific growth rate (SGR) were 113.79 ±14.74 ㎜, 9.1%, 18.53 ㎜ per day, and 5.48% per day, respectively. Little growth was observed from hatching to 20 DAH; however, the growth rate gradually increased from 20 DAH, until the larvae rapidly grew post 30 DAH.

목차

Abstract
Ⅰ. 서론
Ⅱ. 재료 및 방법
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 요약
References

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UCI(KEPA) : I410-ECN-0101-2018-454-003548148