Hatching ofCoregonus albula andC. lavaretus embryos at different stages of development |
| |
| Authors: | Miroslaw Luczyński Ryszard Kolman |
| |
| Institution: | (1) Chair of Fisheries, Academy of Agriculture and Technology, 10-957 Olsztyn 5, Kortowo, Poland;(2) Inland Fisheries Institute, 10-957 Olsztyn 5, Kortowo, Poland |
| |
| Abstract: | Synopsis Hatching in Coregoninae embryos is not closely connected with a determined stage of embryonic development. Electrical stimulation (AC) induced precocious hatching, and incubation at low temperature caused delay of hatching compared to controls. Embryos hatched precociously had shorter bodies and larger yolksacs than those whose hatching was normal or delayed. This was accompanied by respective changes in duration of the eleutheroembryonic phase (DEP) — inCoregonus lavaretus DEP decreased from 7 days in embryos hatched precociously to 0 days in embryos from delayed hatching. |
| |
| Keywords: | Precocious hatching Electric stimulation Delayed hatching Duration of eleutheroembryonic phase |
| 本文献已被 SpringerLink 等数据库收录！ |
