摘要
探讨了温度、盐度对褐牙鲆(♀)×犬齿牙鲆(♂)杂交子一代(杂交F1)胚胎和初孵仔鱼发育的影响。结果表明,杂交F1受精卵孵化适宜温度范围和最适温度分别为15～21℃和18℃,在适宜温度范围内胚胎发育时间随温度的升高而缩短,二者符合乘幂函数关系式N=115.99T-0.7668(R2=0.9769)。胚胎发育的生物学零度和有效积温分别是7.54℃和540.1℃.h,积算温度(A)与试验水温间呈乘幂函数相关,表达式:A=1328.1T-0.3149(R2=0.9624)。胚胎发育的最低盐度界限为10,孵化的适宜盐度范围和最适盐度范围分别为10～45、25～35;初孵仔鱼生存发育的适宜盐度范围、最适盐度范围分别为10～40和10～20。
The effects of temperature and salinity on the devetopment of embryo and prelarva in crossbreed F1 of Paralichthys olivaceus （♀ ）×Paralichthys dentatus （♂ ） were investigated. The results showed that the optimum temperature and suitable range for hatching were 18℃ and 15-21 ℃. The embryo development time was shortened with the increasing of temperature in the suitable temperature range. The relation of development time （N） to water temperature （T） tallied with the power function, N= 115.99T-0.7668 （R^2 =0.976 9）. Biological zero and sum of effective temperature of crossbreed F1 were 7.54℃ and 540.1℃· h. The corre-lation between water temperature （T） and accumulative temperature （A） could be described by the equation, A=1 328.1T-0.3149（R^2 =0. 962 4）. The crossbreed F1 embryos could develop at salinity 10-45, the optimum salinity range being 25-35. The suitable and optimum salinity range for prelarva survival were 10-40 and 10-20, respectively.
出处
《海洋水产研究》
CSCD
北大核心
2007年第3期31-37,共7页
Marine Fisheries Research
基金
农业部948计划项目(2001-479-4)
青岛市科技局科技计划专项(00-02-10-1)共同资助
关键词
褐牙鲆
犬齿牙鲆
杂交
温度
盐度
胚胎发育
初孵仔鱼
Paralichthys olivaceus Paralichthys dentatus Crossbreed F1 Temperature Salinity Embryonic development Prelarva
