Marine and brackish-water molluscan biodiversity in the Gulf of California, Mexico

Authors

  • Michel E. Hendrickx Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Laboratorio de Invertebrados Bentónicos
  • Richard C. Brusca Arizona-Sonora Desert Museum, Tucson, Arizona
  • Mercedes Cordero B.I.A., Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Laboratorio de Invertebrados Bentónicos
  • Germán Ramírez R. Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Laboratorio de Invertebrados Bentónicos

DOI:

https://doi.org/10.3989/scimar.2007.71n4637

Keywords:

Mollusca, biodiversity, Gulf of California, Mexico

Abstract


A database containing taxonomic, distributional and ecological data of 2194 species of marine molluscs (1528 Gastropoda, 565 Bivalvia, 59 Polyplacophora, 21 Scaphopoda, 20 Cephalopoda, and one Monoplacophora) known to the Gulf of California, Mexico, was used to analyse their latitudinal and bathymetric distribution, to define their substrate preferences, and to elaborate a biodiversity model for the study area. The model was based on a comparison between the set of data associated with each species (i.e., depth range, associated substrates and geographic distribution within the Gulf) and the environmental conditions prevailing in the Gulf (i.e., depth and substrate), using a georeferenced grid of 2 x 2 nautical miles. Results are presented as predictive biodiversity distribution maps for the major molluscan groups. Putative biodiversity ranges were defined using a percentage accumulative system with 20% classes. As expected, the highest biodiversity occurs along the coastline and around the islands. A south-north biodiversity gradient is observed, although it is less evident between the southern and central Gulf.

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Published

2007-12-31

How to Cite

1.
Hendrickx ME, Brusca RC, Cordero M, Ramírez R. G. Marine and brackish-water molluscan biodiversity in the Gulf of California, Mexico. scimar [Internet]. 2007Dec.31 [cited 2021Jan.22];71(4):637-4. Available from: http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/218

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