15 SEPTEMBER 1999
EFFECTS OF TEMPERATURE AND SALINITY ON FERTILIZATION OF HALIBUT (HIPPOGLOSSUS HIPPOGLOSSUS L.) EGGS
D. J. Martin-Robichaud, M. A. Rommens-1998
Bulletin of the Aquaculture Association of Canada, 98-2 (contributing papers Aquaculture Canada '98): 27-29
Abstract:
The objective of this study was to determine whether the temperature and salinity of the water used during artificial fertilization of halibut eggs affect fertilization success and egg viability. Halibut eggs from 5 egg batches were fertilized in water of various temperature and salinity combinations (2, 4, 6 and 8 C; 27, 30, 33 and 36 ppt). There were significant differences in egg viability among batches of eggs, but temperature and salinity did not affect viability. Fertilization success was significantly different among batches and was also affected by temperature. Temperatures of 6 and 8 C resulted in the highest fertilization success, although the difference was not significant for all batches. Salinity did not significantly affect egg viability or fertilization success.
(Fisheries and Oceans Canada, Biological Station, St. Andrews, NB, Canada E0G 2X0)