Structure of Benthic Diatom Assemblages from a Mangrove Environment in a Mexican Subtropical Lagoon

Structure of Benthic Diatom Assemblages from a Mangrove Environment in a Mexican Subtropical Lagoon

The taxonomic list and the structure of benthic diatom assemblages occurring in fine sediments (silt and sand) from the mangrove forest of the Balandra lagoon in Baja California Sur, Mexico was determined based on seasonal samplings for one year. Assemblage structure was analyzed using several ecolo...

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Veröffentlicht in:Biotropica 1999-03, Vol.31 (1), p.48-70
Hauptverfasser: David A. Siqueiros Beltrones, Castrejon, Edna Sanchez
Format: Artikel
Sprache:eng
Schlagworte:
Bacillariophyceae
Biological taxonomies
Cell walls
Chrysophyta
Diatoms
Estimated taxes
Lagoons
Marine
Mexico
Peninsulas
Salinity
Sediments
Species diversity
Taxa
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creator David A. Siqueiros Beltrones
Castrejon, Edna Sanchez
description The taxonomic list and the structure of benthic diatom assemblages occurring in fine sediments (silt and sand) from the mangrove forest of the Balandra lagoon in Baja California Sur, Mexico was determined based on seasonal samplings for one year. Assemblage structure was analyzed using several ecological indices for estimating diversity (H'), dominance (REDI), equitability, and similarity. A total of 230 diatom taxa were identified and include 109 new records for the Baja California peninsula coast. Taxa representative of highly productive and hypersaline environments were common. Assemblages were characterized by a few abundant species and many uncommon or rare taxa. High diatom diversity estimates at all sampling sites during all seasons suggest that diatom assemblages in sediments of the Balandra lagoon represent a quasi-pristine environment.
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source Wiley Journals; JSTOR Archive Collection A-Z Listing
subjects Bacillariophyceae
Biological taxonomies
Cell walls
Chrysophyta
Diatoms
Estimated taxes
Lagoons
Marine
Mexico
Peninsulas
Salinity
Sediments
Species diversity
Taxa
title Structure of Benthic Diatom Assemblages from a Mangrove Environment in a Mexican Subtropical Lagoon
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