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Distribution of cichlid fishes in the littoral of Lake Bacalar, Yucatan Peninsula

Tipo de material: Artículo impreso(a) Artículo impreso(a) Idioma: Inglés Tema(s) en español: Tema(s) en inglés: Clasificación:
  • AR/597.5 G3
Formatos físicos adicionales disponibles:
  • Disponible en línea
 En: Environmental Biology of Fishes número 54, número 1 (1999), páginas 35-43Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Resumen:
Inglés

The distribution of cichlids in Lake Bacalar was assessed from January to September 1996, in eight shallow-water (< 2 m) stations, using a 20 m long seine net. Temperature, salinity/conductivity and dissolved oxygen were sensor-obtained; depth, submerged vegetation and bottom type were determined by visual inspection. Affinities between stations, based on fish abundance and environmental parameters, were analyzed by multivariate methods. Littoral of Bacalar town was the site with highest richness, diversity and abundance, probably promoted by the additional urban waste of organic matter. PCA defined two station-groups, one associated with muddy substrates, the other one with rocky/sandy bottoms. Cichlids are more abundant over muddy bottoms with abundant submerged vegetation, probably because of the abundance of prey and shelter.

Número de sistema: 24444
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Artículos Biblioteca Campeche Artículos (AR) ECOSUR AR597.5 G3 002 Disponible ECO040006673
Artículos Biblioteca Electrónica Recursos en línea (RE) ECOSUR Recurso digital ECO400244446712
Artículos Biblioteca San Cristóbal Artículos (AR) ECOSUR AR 597.5 G3 001 Disponible SER001284

Disponible para usuarios de ECOSUR con su clave de acceso

The distribution of cichlids in Lake Bacalar was assessed from January to September 1996, in eight shallow-water (< 2 m) stations, using a 20 m long seine net. Temperature, salinity/conductivity and dissolved oxygen were sensor-obtained; depth, submerged vegetation and bottom type were determined by visual inspection. Affinities between stations, based on fish abundance and environmental parameters, were analyzed by multivariate methods. Littoral of Bacalar town was the site with highest richness, diversity and abundance, probably promoted by the additional urban waste of organic matter. PCA defined two station-groups, one associated with muddy substrates, the other one with rocky/sandy bottoms. Cichlids are more abundant over muddy bottoms with abundant submerged vegetation, probably because of the abundance of prey and shelter. Inglés

Disponible en línea

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