Resumen
The coastal lagoon system of El Carmen-Machona-Redonda, located in the coastal plateau South of the Gulf of Mexico, in the State of Tabasco was studied from August 1977 to July 1978. Tempetature, chlorinity and dissolved oxygen were recorded every two months during the study period. The maximum depth of the system is 3.0 m, decreasing toward the edges and the oyster banks: the average depth is 1.0 - 1.30 m. Only a very small amount of freshwater reaches the system; the chlorinity content is additionally increased on account of the very recent opening of an artificial sea mouth. The highest average temperature (30.1ºC) was recorded in august 1977, and the lowest (25.5ºC) was recorded in december of the same year, thus showing m small annual variation. The average chlorinity value of 4.12‰ between the highest and the lowest average monthly values (19.19-15.47‰) makes it a rather homogeneous system throughout the year. Dissolved oxygen average values varied from 4,52 ml/L in February 1978, to 5.92 ml/L in July of the same year. Thus the system represent a typical, tropical marine lagunar system, with small freshwater influence.
ARTIGOS
Hidrologia de un sistema de lagunas costeras del sur del Golfo de Mexico, en un periodo comprendido entre 1977/1978
Andrés Resendez Medina
Departamento de Zoología, Universidad Nacional Autónoma de México, México
SYNOPSIS
The coastal lagoon system of El Carmen-Machona-Redonda, located in the coastal plateau South of the Gulf of Mexico, in the State of Tabasco was studied from August 1977 to July 1978. Tempetature, chlorinity and dissolved oxygen were recorded every two months during the study period. The maximum depth of the system is 3.0 m, decreasing toward the edges and the oyster banks: the average depth is 1.0 - 1.30 m. Only a very small amount of freshwater reaches the system; the chlorinity content is additionally increased on account of the very recent opening of an artificial sea mouth. The highest average temperature (30.1ºC) was recorded in august 1977, and the lowest (25.5ºC) was recorded in december of the same year, thus showing m small annual variation. The average chlorinity value of 4.12 between the highest and the lowest average monthly values (19.19-15.47) makes it a rather homogeneous system throughout the year. Dissolved oxygen average values varied from 4,52 ml/L in February 1978, to 5.92 ml/L in July of the same year. Thus the system represent a typical, tropical marine lagunar system, with small freshwater influence.
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Agradecimientos
El autor desea expresar su agradecimiento a Guadalupe de la Lanza, María Teresa Reyna y Jorge Cabrera, por su valiosa ayuda y sugerencias en este trabajo; a Samuel Gómez y Rafael Lamothe por su crítica e identificación de algunos organismos, y al Sr. Bartolo Nadal Suárez, Jefe de la Oficina de Pesca de Sánchez Magallanes. Tab., por permitirnos el acceso a los datos de pesca del Puerto de 1970 a 1976.
- ANÓNIMO. 1970. Carta de climas (Hoja Coatzacoalcos 15Q-V). Universidad Nacional Autónoma de México, Comisión de Estudios del Territorio Nacional (CETENAL).
- ______ 1976. Estudio de gran visión del Estado de Tabasco. (Proyecto EI-6-2). Sría. de la Presidencia. Universidad Nacional Autónoma de México, Comisión de Estudios del Territorio Nacional (CETENAL), 227p.
- REYNA, T.T. 1970. Relaciones entre la sequía intraestival y algunos cultivos en México. Serie Cuad. Inst. Geogr. Univ. Nac. Aut. Méx., :5-37.
- VILLALOBOS. A.; GÓMEZ, S.; ARENAS, V.; RESENDEZ, A. & LANZA, G. de la Estudios hidrobiológicos en laguna de Tamiahua, Veracruz, México. Revta Soc. mex. Hist. nat. (en prensa).
Fechas de Publicación
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Publicación en esta colección
06 Jun 2012 -
Fecha del número
1980
