中国水产科学2018，Vol.25Issue(2)：336-345,10.DOI:10.3724/SP.J.1118.2018.17224
墨西哥湾扇贝选育系早期发育与生长
Early development and growth of a selective line of Argopecten irra-dians concentricus
摘要
Abstract
Development of embryos, larvae, and juveniles of Argopecten irradians concentricus were observed using an optical microscope, with a digital camera at water temperatures of 28℃ to 29℃ and salinity of 24 to 25. Zygotes began the first cleavage at 50 min post-fertilization, developed to D-shaped larvae between 22 and 24 h, and the larvae developed eye points and feet at day 11 and entered the attachment metamorphosis stage. There was no significant difference in the time of embryo development between the selective and control lines (P>0.05). The shell length and shell height were not significantly different at the embryonic and early larval stages between the selective and control lines (P>0.05), but there was a significant difference in shell length and shell height at the post-larval and attachment metamorphosis stages between the selective and control lines (P<0.05). The metamor-phosis and survival rates of the selective line were significantly different from those of the control line (P<0.05), and the selective line has obvious advantages. The results show that the growth of the early planktonic larval stage of A.irradians concentricus was slow but at the post-larval and juvenile stages,it was rapid.The growth of shell length and shell height of A.irradians concentricus was not synchronized. The growth speed of shell length ex-ceeded that of shell height at the earlier larval stage, and at the later larval stage, the growth speed of shell height exceeded that of shell length; at 28 to 30 days, shell height exceeded shell length. At the larval and juvenile stages, the growth of the selective line significantly exceeded that of the control line. The selective line has obvious growth advantages and growth potential.关键词
墨西哥湾扇贝/选育系/胚胎发育/幼虫/稚贝Key words
Argopecten irradians concentricus/selective line/embryonic development/larvae/juveniles分类
农业科技引用本文复制引用
封杰,赵乃乾,郑宇辰,王文杰,刘行,潘英..墨西哥湾扇贝选育系早期发育与生长[J].中国水产科学,2018,25(2):336-345,10.基金项目
广西科学研究与技术开发计划项目(桂科攻14121006-2-5). （桂科攻14121006-2-5）
