TY - JOUR
T1 - Gonadal maturity of crassostrea corteziensis cultivated in the Gulf of California
AU - Góngora-Gómez, Andrés Martín
AU - Sepúlveda, Carlos Humberto
AU - Verdugo Escobar, Héctor Alejandro
AU - Astorga Castro, Osvaldo
AU - Rodríguez-González, Hervey
AU - Domínguez-Orozco, Ana Laura
AU - Hernández-Sepúlveda, Juan Antonio
AU - García-Ulloa, Manuel
N1 - Publisher Copyright:
© 2020, Escuela de Ciencias del Mar. All rights reserved.
PY - 2020
Y1 - 2020
N2 - The gonadal maturation of the pleasure oyster Crassostrea corteziensis during four cultivation cycles (November 2004-June 2005, N4J5; August 2014-February 2016, A14F16; September 2015-December 2016, S15D16; September 2016-August 2017, S16A17) was studied in the southeastern Gulf of California, Mexico. Although C. corteziensis exhibited the typical reproductive phases (undifferentiated or resting, initial gametogenesis, advanced gametogenesis, maturity, spawning and post-spawning), the intensity of reproduction and the timing of the onset of the different phases of gonadal development varied in each cultivation cycle. Reproductive peaks were observed in different months (N4J5 in May, A14F16 in July, S15D16 in May and S16A17 in June) during spring and summer. Spawning correlated with temperature in the N4J5 and A14F16 cultivation cycles but it showed no correlation with chlorophyll-a concentration in any of the cultivation cycles. C. corteziensis presented an opportunistic continuous reproductive strategy with spawning occurring during several months of the year. The modification of the species' reproduction pattern could contribute to the natural settlement of larvae, increasing the natural production of this native oyster resource in the southeast of the Gulf of California, where it has been fished intensively.
AB - The gonadal maturation of the pleasure oyster Crassostrea corteziensis during four cultivation cycles (November 2004-June 2005, N4J5; August 2014-February 2016, A14F16; September 2015-December 2016, S15D16; September 2016-August 2017, S16A17) was studied in the southeastern Gulf of California, Mexico. Although C. corteziensis exhibited the typical reproductive phases (undifferentiated or resting, initial gametogenesis, advanced gametogenesis, maturity, spawning and post-spawning), the intensity of reproduction and the timing of the onset of the different phases of gonadal development varied in each cultivation cycle. Reproductive peaks were observed in different months (N4J5 in May, A14F16 in July, S15D16 in May and S16A17 in June) during spring and summer. Spawning correlated with temperature in the N4J5 and A14F16 cultivation cycles but it showed no correlation with chlorophyll-a concentration in any of the cultivation cycles. C. corteziensis presented an opportunistic continuous reproductive strategy with spawning occurring during several months of the year. The modification of the species' reproduction pattern could contribute to the natural settlement of larvae, increasing the natural production of this native oyster resource in the southeast of the Gulf of California, where it has been fished intensively.
KW - Cortez oyster
KW - Crassostrea corteziensis
KW - Farming
KW - Gametogenesis
KW - Reproduction
KW - Sinaloa
KW - Spawning
UR - http://www.scopus.com/inward/record.url?scp=85087646557&partnerID=8YFLogxK
U2 - 10.3856/vol48-issue3-fulltext-2422
DO - 10.3856/vol48-issue3-fulltext-2422
M3 - Artículo
SN - 0718-560X
VL - 48
SP - 381
EP - 395
JO - Latin American Journal of Aquatic Research
JF - Latin American Journal of Aquatic Research
IS - 3
ER -