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KMID : 0894520070110020105
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Development & Reproduction
2007 Volume.11 No. 2 p.105 ~ p.109
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Temperature Effect in Egg Development and Hatching of Longtooth Grouper, Epinephelus bruneus
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Yang Moon-Ho
Choi Young-Ung
Jung Min-Min
Ku Hag-Dong
Oh Bong-Sae
Moon Tae-Seok
Lee Chang-Hoon
Han Seok-Jung
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Abstract
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This study examined temperature effect in egg development and hatching of longtooth grouper, Epinephelus bruneus. Fertilized embryos was not growth after morula stage at 15℃, at 18, 21, 24 and 27℃, the required time from fertilized embryos to hatching were 70 h. 30 min., 44 h. 10 min., 29 h. 10 min. and 24 h. 30 min., respectively. The hatching rates at 24℃ were higher than the other conditions and the hatching was not occurred at 15℃. These results suggest that the water temperature range of egg development and hatching was 18∼27℃.
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KEYWORD
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Longtooth Grouper, Epinephelus bruneus, Egg Development, Hatching rates
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