上海海洋大学学报2013，Vol.22Issue(4)：538-544,7.
大黄鱼(♀)×(鮸)鱼(♂)杂交F1和大黄鱼初孵仔鱼盐度适应性的比较研究
Comparison of salinity tolerance of newly hatched larvae of Pseudosciaena crocea and hybrid F1 of Pseudosciaena crocea (♀) × Miichthys miiuy (♂)
摘要
Abstract
The effects of salinity on the survivial of newly hatched larvae of Pseudosciaena crocea and the hybrid F1 of Pseudosciaena crocea (♀) × Miichthys miiuy (♂) were investigated.The newly hatched larvae were transferred from sea water (salinity 27) to other seven salinities (12,17,22,27,32,37,42).The results showed that the survival rate,mean survival time (MST) and survival activial index (SAI) of the newly hatched larvae of large yellow croaker and hybrid F1 are decreased following the increase of salinity.In the salinity range of 12 to 32,the SAI values of hybrid F1 was up to 62.42 to 86.56 which was significantly higher than the large yellow croaker (46.18 to 53.89).At the salinity 12,the MST of large yellow croaker and hybrid F1 reached the maximum value,(10.69 ± 0.16) d and (13.47 ± 0.35) d,and at the salinity 42,the MST reached a minimum value,(4.91 ±0.27) d and (6.30 ±0.27) d.The continued downward trend of survival rate,median death time (DT50),mean survival time (MST) and survival activial index (SAI) of the newly hatched larvae of large yellow croaker and hybrid F1 were compared at the same salinity.The results show that the newly hatched larvae of hybrid F1 had stronger ability to survive during salinity changes,and showed strong heterosis.关键词
大黄鱼/(鋔)鱼/远缘杂交/盐度Key words
Pseudosciaena crocea / Miichthys miiuy/ distant hybridization / salinity分类
农业科技引用本文复制引用
赵虎,崔国强,吕为群..大黄鱼(♀)×(鮸)鱼(♂)杂交F1和大黄鱼初孵仔鱼盐度适应性的比较研究[J].上海海洋大学学报,2013,22(4):538-544,7.基金项目
国家自然科学基金(31072228) （31072228）
上海市科学技术委员会重点项目(10JC1406200) （10JC1406200）
