![]() Temperatures of 30 oC or greater had a negative effect on spawning and was similar at a salinity of 30 psu. Thermal shock was less effective with only 34% of organisms spawning and, unlike the salinity results, the number of females was higher than that of males. The best spawning results were obtained by using salinity shock, which induced spawning in 55% of the oysters tested, with the number of males that spawned being significantly higher than that of the females. The objective of this work was to determine the effects of salinity and thermal shock on spawning of C. Temperatures used were 10, 15, 20, 25 and 30 ☌ and the salinities were 10, 15, 20, 25 and 30 psu. Organisms were obtained in Machona Lagoon, located in Sánchez Magallanes, Tabasco. ![]() ![]() ABSTRACT: The effectiveness of two stimuli (thermal and salinity shock) in inducing spawning in the eastern oyster Crassostrea virginica was tested under laboratory conditions. ![]()
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