摘要
对绒螯近方蟹(Hemigrapsuspenicillatus)的生态习性和繁殖生物学进行了初步的调查和实验研究。雌性、雄性甲宽与体重的关系分别为W♀=0.6056×L2.9806(n=132,r=0.96),W♂=0.5893×L3.1215(n=50,r=0.97)。抱卵量与甲宽的关系为Q=865.82L-7275(r=0.97)。幼体发育分为5期状幼体和1期大眼幼体。胚胎、状幼体和大眼幼体的发育积温分别为219.4℃,226.35℃,49.3℃(以12℃为生物学零度)。
The habit and reproductive biology of crab Hemigrapsus penicillatus were preliminarily investigated. The relationship between body weight and carapace width for H. penicillatus was found to be W_♀= 0.6056 ×L 2.9806 (n=132,R=0.96) and W_♂=0.5893×L 3.1215 (n=50, r=0.97). The relationship between egg-carrying amount (Q) and carapace width (L) is Q=865.82L-7275 (r=0.97). Five zoea stages and one megalopa stage were observed before the larva developed into the first stage of junior crab. The accumulative temperatures for the embryo, zoea larva and megalopa larva development are 219.4℃, 226.35℃ and 49.3℃ respectively (12℃ is taken as biological zero degrees).
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第4期575-578,共4页
Periodical of Ocean University of China
基金
国家重点基础研究发展规划项目(G1999012011)资助
关键词
绒螯近方蟹
发育积温
甲宽
体重
Hemigrapsus penicillatus
accumulative temperature
carapace width
body weight
