Alterations in the structure of the macrobenthic community at Bahía Falsa, Mexico, related to the culture of Crassostrea gigas

The changes in macrobenthic communities in Bahía Falsa, Baja California, induced by an oyster culture are evaluated, in order to understand the actual status of the ecological system and provide the basis for a future management in the area. The study was conducted between 1987 and 1990 in a 15-poin...

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Bibliographic Details
Published in:Ciencias Marinas
Main Author: G Villarreal
Format: Article in Journal/Newspaper
Language:English
Spanish
Published: Universidad Autónoma de Baja California 1995
Subjects:
Online Access:https://doi.org/10.7773/cm.v21i4.1005
https://doaj.org/article/27b86da737284165b905dc92488f6d4b
Description
Summary:The changes in macrobenthic communities in Bahía Falsa, Baja California, induced by an oyster culture are evaluated, in order to understand the actual status of the ecological system and provide the basis for a future management in the area. The study was conducted between 1987 and 1990 in a 15-point grid covering the lagoon. Data obtained were processed for community ordination by a principal components method, and a biological value index was also obtained. The results indicate that the community, in general, and the Zostera marina meadow, in particular, do not show symptoms of alteration and that the annelid community composition is similar to that reported 3 and 21 years ago. Only the area directly associated with the culture installations shows marked eutrophication and a community characteristic of organically polluted areas.