Effects of temperature and salinity on inducing spawning in the eastern oyster (Crassostrea virginica) under laboratory conditions

Autores/as

  • Antonio Magaña Carrasco Universidad Juárez Autónoma de Tabasco
  • Nancy Patricia Brito Manzano Universidad Juárez Autónoma de Tabasco
  • Armando Gómez Vázquez Universidad Juárez Autónoma de Tabasc
  • Aldenamar Cruz-Hernández División Académica de Ciencias Agropecuarias UJAT

DOI:

https://doi.org/10.19136/era.a5n14.1236

Palabras clave:

Induction spawning, oyster, Crassostrea virginica, Machona lagoon

Resumen

The effectiveness of two stimuli (thermal and salinity shock) in inducing spawning in the eastern oyster Crassostrea virginica was tested under laboratory conditions. Organisms were obtained in Machona Lagoon, located in Sánchez Magallanes, Tabasco. Temperatures used were 10, 15, 20, 25 and 30 ◦C and the salinities were 10, 15, 20, 25 and 30 psu. The objective of this work was to determine the effects of salinity and thermal shock on spawning of C. virginica oyster. 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 signi cantly higher than that of the females. Thermal shock was less e ective with only 34% of organisms spawning and, unlike the salinity results, the number of females was higher than that of males. Temperatures of 30 ◦C or greater had a negative e ect on spawning and was similar at a salinity of 30 psu. The optimum time for spawning was between 11 and 15 min of exposure to salinity shock, whilst for thermal shock it was between 16 and 20 min. 

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Biografía del autor/a

Antonio Magaña Carrasco, Universidad Juárez Autónoma de Tabasco

División Académica de Ciencias Agropecuarias

Nancy Patricia Brito Manzano, Universidad Juárez Autónoma de Tabasco

División Académica de Ciencias Agropecuarias

Cuerpo Académico Producción Agropecuaria en el Trópico Húmedo

Armando Gómez Vázquez, Universidad Juárez Autónoma de Tabasc

División Académica de Ciencias Agropecuarias

Cuerpo Académico Producción Agropecuaria en el Trópico Húmedo

Aldenamar Cruz-Hernández, División Académica de Ciencias Agropecuarias UJAT

División Académica de Ciencias Agropecuarias

Cuerpo Académico Producción Agropecuaria en el Trópico Húmedo

Citas

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Publicado

2018-04-24

Cómo citar

Magaña Carrasco, A., Brito Manzano, N. P., Gómez Vázquez, A., & Cruz-Hernández, A. (2018). Effects of temperature and salinity on inducing spawning in the eastern oyster (Crassostrea virginica) under laboratory conditions. Ecosistemas Y Recursos Agropecuarios, 5(14), 239–246. https://doi.org/10.19136/era.a5n14.1236

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