寡齿新银鱼胚胎发育及其与温度的关系研究

Embryonic development of Neosalanx oligodontis and its relation with temperature

在平均水温分别为１４．２、１５．６、１６．５、２３．４和２４．５℃时，寡齿新银鱼胚胎孵化时数依次为１４２、１１９、１０８、６８和６１ｈ．胚胎发育时序可分为１０期．温度与胚胎孵化时间呈幂函数关系，Ｈ＝６８６１．１９８８×Ｔ－１．４７１７；积温与胚胎孵化时间亦呈幂函数关系，Ｈ＝１．６０８１×１０－８×Ａ３．０１５１．

When average water temperature is 14. 2, 15. 6,16. 5,23. 4 and 24.5℃,the incubationtime of Neosalanx oligodontis is 142, 119, 108,68 and 61 hours in turn.Its embryonic development can be divided into ten stages. The relationship between temperature and incubation time is expressed as H=6861.1988 T-1.4717,and that between accumulated temperature and incubation time is H=1.6081×10-8A3.0151.