海洋科学2016，Vol.40Issue(10)：49-54,6.DOI:10.11759/hykx20150107003
水温和盐度对皱纹盘鲍"97"选群第6代变态及变态幼体生长存活的影响
Effects of water temperature and salinity on metamorphosis, post-larval survival, and growth of the sixth generation of "97" selective breeding population of Haliotis discus hannai Ino
摘要
Abstract
The effects of water temperature and salinity on metamorphosis, post-larval survival, and growth of Haliotis discus hannai Ino were explored in this study. In the temperature experiment, the animals were reared at eight water temperatures of 14 , 16, 18, 20, 22, 24 , 26, and 28℃. The results illustrated that the water temperature considerably influenced the metamorphosis rate, post-larval survival, and growth of H. discus hannai Ino (P< 0.01). At 14~28℃, the metamorphosis, post-larval survival, and growth rates were first increased and subsequently de-creased. The metamorphosis rate reached its peak at 24℃ with a value of 86.05%. The best post-larval survival was obtained at 18℃ with a value of 96.00%. The optimal water temperature for post-larval growth was 26℃, at which the growth rates of shell length and shell width within 6 days after casting were 48.49 and 43.81μm/d, respectively, and the two growth rates within 15 days after casting were 68.06 and 59.69μm/d, respectively. In the salinity ex-periment, animals were reared at 10 salinities of 22, 24, 26, 28, 30, 32, 34, 36, 38, and 40. The salinity considerably affected the metamorphosis rate and post-larval growth (P< 0.01); however, it had no impact on post-larval survival (P> 0.05). At 22~40, the metamorphosis rate first increased and subsequently decreased, reaching its peak at 32 with a value of 79.23%. The lower salinity limit of metamorphosis was 22, at which only 2.21% of individuals could complete metamorphosis. At 26~40, the post-larval survival rate was above 85%. Within this range, the growth rate first increased and subsequently decreased. Maximum growth rates of shell length and shell width within 6 days after casting were obtained at 34, with values of 32.03 and 25.20μm/d, respectively. The growth rates of shell length and shell width within 15 days after casting reached their peak at 34 and 32, respectively, with values of 43.03 and 39.00μm/d.关键词
皱纹盘鲍(Haliotis discus hannai Ino)/水温/盐度/变态率/生长存活Key words
Haliotis discus hannaiIno/water temperature/salinity/metamorphosis rate/survival and growth分类
农业科技引用本文复制引用
孔宁,连建武,薛艳洁,钟兆山,李鹏,刘晓..水温和盐度对皱纹盘鲍"97"选群第6代变态及变态幼体生长存活的影响[J].海洋科学,2016,40(10):49-54,6.基金项目
国家高技术研究发展计划资助项目(2012AA10A412) The National High Technology Research and Development Program, No.2012AA10A412 （2012AA10A412）
