Development of the common
dentex (Dentex dentex) eggs in relation to temperature
Ş. Saka, K. Fırat, D. Çoban-2004
Aquaculture
Research, 35(3):
224-231
Abstract:
Embryonic development of common dentex (Dentex
dentex) was investigated at nine different constant water temperatures
(8°C, 10°C, 12°C, 14°C, 16°C, 18°C, 20°C, 22°C and 24°C). The
observed effects were compared using of regression analysis. Constant water
temperatures between 12°C and 18°C were found to support successful
embryonic development. A negative relationship between the rate of embryonic
development and incubation temperature was observed. While embryonic
development was completed within this range (12°C-18°C), there was no cell
division at water temperatures of 8°C and 24°C. Total mortalities were
observed at the 128 cleavage stage at a temperature of 10°C, and after the
beginning of gastrulation at 20°C and 22°C.
(Department of Aquaculture, Faculty of Fisheries, Ege
University, 35440 Urla-Iskele, Izmir, Turkey, E-mail: sahsak@yahoo.co.uk)