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Resumen del producto
Romo-Piñera, A., F.A., García Domínguez & E.F., Félix Pico
(2015).
Reproductive aspects of mangrove bivalve mollusks in Baja California Sur.
R., Riosmena Rodríguez, A.F., González Acosta & R., Muñiz Salazar (Eds.),
Nova Science Publishers Inc. (Ed.), Environmental Research Advances. The arid mangroves from Baja California Peninsula.
Cap. 4, pp.47-61.
Reproductive aspects of mangrove bivalve mollusks in Baja California Sur
Abril Romo-Piñera, Federico Andrés García Domínguez y Esteban Fernando Félix Pico
Some reproductive features of Saccostrea palmula (Carpenter, 1857) and Anadara tuberculosa (Sowerby, 1833) from the Santo Domingo (SD) and El Conchalito (ECO) estuaries were investigated to determine differences related to environmental variability and similarities arising from sharing the same location. Both species display five stages of gonadal development (undifferentiated, development, ripe, spawning and spent), which occur synchronously in females and males.[br]In both locations, S. palmula showed an annual reproductive cycle while A. tuberculosa showed a continuous reproductive cycle. Sex ratios significantly departed (p < 0.05) from 1:1 for both species in ECO, but not for S. palmula in SD. For S. palmula, a significant correlation (p < 0.05) between mean maturity index (MMI) and temperature was found at both sites, and between MMI and chlorophyll-a concentration in ECO. For A. tuberculosa no significant correlation (p > 0.05) between MMI and either temperature or chlorophyll-a concentration was observed. S. palmula behaves as an opportunistic species in SD, but as a conservative species in ECO, as does A. tuberculosa. This seems to be related to chlorophyll-a concentration at each site.
Palabras clave: Reproductive cycles; Anadara tuberculosa; SACCOSTREA PALMULA
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