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사육조건이 꽃게 (Portunus trituberculatus (Miers)) 유생과 어린 게의 생존과 성장에 미치는 영향
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  • 사육조건이 꽃게 (Portunus trituberculatus (Miers)) 유생과 어린 게의 생존과 성장에 미치는 영향
저자명
서형철,임한규,김종식,조영록,장인권,강언종,Seo. Hyung-Chul,Lim. Han-Kyu,Kim. Jong-Seek,Cho. Yeong-Rok,Jang. In-Kwon,Kang. Eon-Jong
간행물명
한국수산과학회지
권/호정보
2011년|44권 3호|pp.243-250 (8 pages)
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한국수산과학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The effects of food, temperature, salinity, and rearing density on the survival and growth of the swimming crab Portunus trituberculatus, were studied. With regard to food, the larval survival rate to zoea IV was the highest (53.9%) in the mixed feed group (rotifers+ Artemia), followed, in order, by the rotifer, commercial feed, and Artemia groups. The growth of young crabs reared on different diets was the highest in group VI. The survival rate to zoea II at 20 to $30^{circ}C$ ranged between 77.2% and 83.1%, and was the highest for crab I (17.3%) at $25^{circ}C$. When young crabs were cultured individually at four different temperatures (20, 25, 30, and $35^{circ}C$), the growth did not differ significantly at 25 to $30^{circ}C$, but was higher than at $20^{circ}C$. The survival rate of larvae to crab I was 12.7 and 11.4% at 25 and 28 psu, respectively, while all of the larvae died at 15 psu. For young crabs, there was no significant difference in growth and survival from 20 to 30 psu. The survival rate decreased with increasing rearing density from zoea I to crab I. Each molting cycle took 1 month from crab I to VIII. Subsequently, the interval increased with growth. The mean body weight of crab XV after 24 months was $428.05{pm}57.63;g$.