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28 December 2020 Reproductive Strategy of Dosinia ponderosa (Gray, 1838) (Veneridae) in Puerto Libertad, Sonora, Mexico
Carlos A. Aguilar-Cruz, Abril K. Romo-Piñera, Francisco J. Fernández-Rivera Melo, Carmen Rodríguez-Jaramillo, Emelio Barjau-González
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Abstract

The reproductive strategy of Dosinia ponderosa at a site of the eastern coast of the Gulf of California, Puerto Libertad, Sonora is reported. Samples of visceral mass were taken from 30 clams that were collected monthly from March 2015 to March 2016, and the length and weight of the tissue without shell of each organism were recorded. Through histological analysis, the gonadal index were calculated, and the reproductive stages of the ponderous dosinia were determined. Six oocyte substages and five gonadal development stages for females and five for males are described. The sex ratio was 1:1, and no undifferentiated specimens were found. The sexual maturity phase was observed throughout the year, with two reproductive peaks in June–July and October–November. No correlation was observed between the reproductive activity and temperature or primary productivity.

Carlos A. Aguilar-Cruz, Abril K. Romo-Piñera, Francisco J. Fernández-Rivera Melo, Carmen Rodríguez-Jaramillo, and Emelio Barjau-González "Reproductive Strategy of Dosinia ponderosa (Gray, 1838) (Veneridae) in Puerto Libertad, Sonora, Mexico," Journal of Shellfish Research 39(3), 511-518, (28 December 2020). https://doi.org/10.2983/035.039.0302
Published: 28 December 2020
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