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Seasonal and Bathymetric Changes in Feeding Habits of the Benthic Red Crab Pleuroncodes Planipes (Decapoda, Anomura, Galatheidae) Off the Pacific Coast of Baja California Sur, Mexico

Seasonal and Bathymetric Changes in Feeding Habits of the Benthic Red Crab Pleuroncodes Planipes... SEASONAL AND BATHYMETRIC CHANGES IN FEEDING HABITS OF THE BENTHIC RED CRAB PLEURONCODES PLANIPES (DECAPODA, ANOMURA, GALATHEIDAE) OFF THE PACIFIC COAST OF BAJA CALIFORNIA SUR, MEXICO BY DAVID AURIOLES-GAMBOA and RICARDO PÉREZ-FLORES Centro de Investigaciones Biologicas del Noroeste, S. C. Apartado Postal 128, La Paz Baja California Sur, Mexico1) ABSTRACT Stomach contents of benthic red crabs (Pleuroncodes planipes) were analyzed to document number of items and composition. The crabs were captured along a series of latitudinal transects covering depths from 50 to 250 m, during March (12 stations) and September 1990 (8 stations). The number of food items decreased significantly from March to September at 150 and 200 m depth, the only strata compared since red crabs are usually absent from the coast above 100 m in summer. The particulate organic matter (POM) varied from 60 to 70% of total food items. The zooplankton fraction, mainly crustaceans, foraminiferans, and radiolarians, was second in importance. Phytoplankton was the next most important group, and was represented by 17 genera in March and 11 in September. The mean number of diatoms in stomachs per station decreased significantly (73.5 versus 7) from March to September. The number of genera/station showed the same pattern http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Seasonal and Bathymetric Changes in Feeding Habits of the Benthic Red Crab Pleuroncodes Planipes (Decapoda, Anomura, Galatheidae) Off the Pacific Coast of Baja California Sur, Mexico

Aurioles-Gamboa, David; Pérez-Flores, Ricardo
Crustaceana , Volume 70 (3): 16 – Jan 1, 1997
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216X
eISSN
1568-5403
DOI
10.1163/156854097x00573
Publisher site
See Article on Publisher Site

Abstract

SEASONAL AND BATHYMETRIC CHANGES IN FEEDING HABITS OF THE BENTHIC RED CRAB PLEURONCODES PLANIPES (DECAPODA, ANOMURA, GALATHEIDAE) OFF THE PACIFIC COAST OF BAJA CALIFORNIA SUR, MEXICO BY DAVID AURIOLES-GAMBOA and RICARDO PÉREZ-FLORES Centro de Investigaciones Biologicas del Noroeste, S. C. Apartado Postal 128, La Paz Baja California Sur, Mexico1) ABSTRACT Stomach contents of benthic red crabs (Pleuroncodes planipes) were analyzed to document number of items and composition. The crabs were captured along a series of latitudinal transects covering depths from 50 to 250 m, during March (12 stations) and September 1990 (8 stations). The number of food items decreased significantly from March to September at 150 and 200 m depth, the only strata compared since red crabs are usually absent from the coast above 100 m in summer. The particulate organic matter (POM) varied from 60 to 70% of total food items. The zooplankton fraction, mainly crustaceans, foraminiferans, and radiolarians, was second in importance. Phytoplankton was the next most important group, and was represented by 17 genera in March and 11 in September. The mean number of diatoms in stomachs per station decreased significantly (73.5 versus 7) from March to September. The number of genera/station showed the same pattern

Journal

Crustaceana – Brill

Published: Jan 1, 1997

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