Chemical-biological analysis to determine the trophic status of Tres Palos Lagoon, Guerrero, Mexico

Authors

  • Guadalupe De la Lanza Espino Laboratorio de Química y Productividad Acuática, Instituto de Biología, Universidad Nacional Autónoma de México. A.P. 70-153, C.P. 04510, D.F.
  • Javier Alcocer Durand Proyecto de Investigación en Limnología Tropical, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios 1, Los Reyes Iztacala, Tlalnepantla 54090 Edo. de México. e-mail jalcocer@servidor.unam.mx
  • José Luis Moreno Ruiz Laboratorio de Química y Productividad Acuática, Instituto de Biología, Universidad Nacional Autónoma de México. A.P. 70-153, C.P. 04510, D.F.
  • Salvador Hernández Pulido Laboratorio de Química y Productividad Acuática, Instituto de Biología, Universidad Nacional Autónoma de México. A.P. 70-153, C.P. 04510, D.F.

Keywords:

Chemical-biological characteristics, lagoon systems, hypereutrophic.

Abstract

An evaluation of the main physicochemical and biological parameters was carried out in Tres Palos coastal lagoon in 2003; the aim of the study was to evaluate the environmental quality and the trophic status of the lagoon, and to compare these results with the data obtained in 1971. The salinity, temperature and dissolved oxygen remained similar: oligohaline (2-4 ups), warm (28-31°C), with dissolved oxygen oversaturation at the surface and hypoxia or anoxia at the bottom. However, other characteristics changed considerably. In 1971 the coastal lagoon was eutrophic with high densities of phytoplankton (8 x 103 cel mL-1), and blooms of cyanophytes (i.e., Mycrocystis, Anabaena, Spirulina). Thirty-two years later, the trophic status of Tres Palos coastal lagoon evolved to hypereutrophy. Phytoplankton biomass (?100 mg chlorophyll a m-3) and density (i.e., >10 x 104 cel mL-1) increased in response to the large concentration of available phosphorus (3.6 to 80.6 µM); the cyanophyta continued as the dominant group but with different representative species (i.e., Aphanocapsa delicatissima, Merismopedia punctata, Chroococcus dispersus var. minor, Raphidiopsis curvata and Pseudoanabaena limnetica). The ß-mesosaprobic organisms dominated and revealed the large amount of organic matter coming from allochthonous (urban and industrial wastewater) and autochthonous (phytoplankton) sources.

Downloads

Download data is not yet available.

Published

2017-01-11

How to Cite

De la Lanza Espino, G., Alcocer Durand, J., Moreno Ruiz, J. L., & Hernández Pulido, S. (2017). Chemical-biological analysis to determine the trophic status of Tres Palos Lagoon, Guerrero, Mexico. HIDROBIOLÓGICA, 18(1), 21–30. Retrieved from https://hidrobiologica.izt.uam.mx/hidrobiologica/index.php/revHidro/article/view/865

Issue

Section

Artículos

Most read articles by the same author(s)