Reproductive biology of the tropical clam Donax denticulatus in eastern Venezuela
Velez Rojas, A. (1985). Reproductive biology of the tropical clam Donax denticulatus in eastern Venezuela. Caribb. J. Sci. 21(3-4): 125-136
In: Caribbean Journal of Science. Department of Marine Sciences, University of Puerto Rico: Mayagüez. ISSN 0008-6452, meer
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| Abstract |
The reproductive biology of the tropical clam Donax denticulatus, an important Venezuelan fishery resource, was studied for 24 months. Histological examinations were made of gonadal tissue from 966 clams collected from a population on the coast of the Araya Peninsula. Gametogenesis and sexual differentiation began asynchronously when juveniles were approximately 9 mm long. Half of the juveniles spawned for the first time at 6-7 months. Adults clams reproduced continuously throughout the year, but showed greatest activity between July and December, when water temperatures were highest (28°C). Sex ratio was 1:1 in all samples of individuals longer than 9 mm. |
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