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Effect of Temperature on the Development of Egg and Larvae of Sea Urchin (Strongylocentrotus intermedius)  

이채성 (국립수산과학원 강릉수산종묘시험장)
김완기 (국립수산과학원 강릉수산종묘시험장)
김두호 (국립수산과학원 강릉수산종묘시험장)
정세한 (동해수산연구소)
박기영 (강릉대학교 해양생명공학부)
Publication Information
Journal of Aquaculture / v.16, no.2, 2003 , pp. 94-98 More about this Journal
Abstract
Effect of temperature (5, 10, 15, 18, 21$^{\circ}C$) on pre-and post-embryonic development of the sea urchin Strongylocentrotus intermedius was studied. The egg, which measured 122.5 ${\mu}{\textrm}{m}$, became globular. At 18$^{\circ}C$, it attained 4 celled stage at 3 hours after fertilization, hatched after 15 hours, 4-armed larval stage after 3 days and 8- armed larval stage after 20 days. The relationships between temperature (WT) and time (1, hour) required for each of the selected developmental stages are: Hatching: 1/t=0.0036WT+0.0088 Pyramid: 1/t=0.0014Wl-0.0016 4- armed: 1/t=0.0009WT-0.0020 6- armed: 1/t=0.0004WT-0.0005 8-armed : 1/t=0.0002WT+0.0002 Biological minimum temperature for the egg and larval development is calculated as 1.61$^{\circ}C$.
Keywords
Sea urchin; Egg; Development; Larva; Temperature;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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