DEVELOPMENTAL SPEED AND HATCHING RATE OF Epinephelus akaara EGGS WITH DIFFERENT WATER TEMPERATURE

Title
DEVELOPMENTAL SPEED AND HATCHING RATE OF Epinephelus akaara EGGS WITH DIFFERENT WATER TEMPERATURE
Author(s)
강성원; 정태혁; 안재연; 박중열; 방인철; 김근식; 노충환; 임한규
KIOST Author(s)
Noh, Choong Hwan(노충환)
Publication Year
2015-05-26
Abstract
Water temperature in fish culture is the one of important environmental factors that affect egg development in fish and growth of its larvae. Commonly, low water temperature make development pace slower, and high water temperature make development pace faster. In this study, egg development of Epinephelus akaara was possible to hatch when water temperature ranged 19~28°C, and it was possible to survive to mouth opening time (MOT) when water temperature ranged 22~28°C. MOT in each water temperature take 110hr in 22°C, 94hr in 25°C, 73hr in 28°C respectively. The higher water temperature attend the shorter to takes time and the shortest consumption time by MOT was in 28°C. The highest hatching rate with different water temperature showed 50.4% in 25°C, and the highest survival rate to MOT showed 31.1% in 25°C. In this result, optimal temperature of egg development in Epinephelus akaara was 25°C.lopment pace faster. In this study, egg development of Epinephelus akaara was possible to hatch when water temperature ranged 19~28°C, and it was possible to survive to mouth opening time (MOT) when water temperature ranged 22~28°C. MOT in each water temperature take 110hr in 22°C, 94hr in 25°C, 73hr in 28°C respectively. The higher water temperature attend the shorter to takes time and the shortest consumption time by MOT was in 28°C. The highest hatching rate with different water temperature showed 50.4% in 25°C, and the highest survival rate to MOT showed 31.1% in 25°C. In this result, optimal temperature of egg development in Epinephelus akaara was 25°C.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25413
Bibliographic Citation
World Aquaculture 2015 Jeju, pp.261, 2015
Publisher
World Aquaculture Society
Type
Conference
Language
English
Publisher
World Aquaculture Society
Related Researcher
Research Interests

Fish genetics and breeding,Living modified organism,Sbtropical mariculture,어류유전육종,어류형질전환,아열대어류양식

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