Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton

Phytoplankton in water samples from the lower delta of the Paraná river (Argentina) and in the gut contents of a local populaton of the Asiatic clam Corbicula fluminea was identified and counted monthly between April 1992 and March 1993. Relative abundances of algal species were generally similar in...

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Detalles Bibliográficos
Autores principales: Boltovskoy, D., Izaguirre, I., Correa, N.
Formato: JOUR
Materias:
freshwater
grazing selectivity
molluscs
phytoplankton
Corbicula fluminea
Asiatic clam
bivalve
feeding behaviour
food preference
food preferences
selectivity
Argentina, Parana Delta
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00188158_v312_n3_p171_Boltovskoy
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00188158_v312_n3_p171_Boltovskoy
record_format dspace
spelling todo:paper_00188158_v312_n3_p171_Boltovskoy2023-10-03T14:15:46Z Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton Boltovskoy, D. Izaguirre, I. Correa, N. freshwater grazing selectivity molluscs phytoplankton Corbicula fluminea Asiatic clam bivalve feeding behaviour food preference food preferences phytoplankton selectivity Argentina, Parana Delta Phytoplankton in water samples from the lower delta of the Paraná river (Argentina) and in the gut contents of a local populaton of the Asiatic clam Corbicula fluminea was identified and counted monthly between April 1992 and March 1993. Relative abundances of algal species were generally similar in the medium and in the stomachs of clams, suggesting the absence of feeding selectivity on the basis of taxonomic group or size-class. Diatoms made up a slightly but consistently larger (yet not significantly different) proportion of the diet of C. fluminea than of the plankton; this pattern is attributed to enhanced preservation of algal siliceous frustules, rather than to feeding selectivity. It is suggested that non-selective feeding by the bivalve is a response to the overall scarcity of food and, probably, to food collection by a combination of deposit and filter feeding. © 1995 Kluwer Academic Publishers. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Izaguirre, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Correa, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00188158_v312_n3_p171_Boltovskoy
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic freshwater
grazing selectivity
molluscs
phytoplankton
Corbicula fluminea
Asiatic clam
bivalve
feeding behaviour
food preference
food preferences
phytoplankton
selectivity
Argentina, Parana Delta
spellingShingle freshwater
grazing selectivity
molluscs
phytoplankton
Corbicula fluminea
Asiatic clam
bivalve
feeding behaviour
food preference
food preferences
phytoplankton
selectivity
Argentina, Parana Delta
Boltovskoy, D.
Izaguirre, I.
Correa, N.
Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
topic_facet freshwater
grazing selectivity
molluscs
phytoplankton
Corbicula fluminea
Asiatic clam
bivalve
feeding behaviour
food preference
food preferences
phytoplankton
selectivity
Argentina, Parana Delta
description Phytoplankton in water samples from the lower delta of the Paraná river (Argentina) and in the gut contents of a local populaton of the Asiatic clam Corbicula fluminea was identified and counted monthly between April 1992 and March 1993. Relative abundances of algal species were generally similar in the medium and in the stomachs of clams, suggesting the absence of feeding selectivity on the basis of taxonomic group or size-class. Diatoms made up a slightly but consistently larger (yet not significantly different) proportion of the diet of C. fluminea than of the plankton; this pattern is attributed to enhanced preservation of algal siliceous frustules, rather than to feeding selectivity. It is suggested that non-selective feeding by the bivalve is a response to the overall scarcity of food and, probably, to food collection by a combination of deposit and filter feeding. © 1995 Kluwer Academic Publishers.
format JOUR
author Boltovskoy, D.
Izaguirre, I.
Correa, N.
author_facet Boltovskoy, D.
Izaguirre, I.
Correa, N.
author_sort Boltovskoy, D.
title Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
title_short Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
title_full Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
title_fullStr Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
title_full_unstemmed Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton
title_sort feeding selectivity of corbicula fluminea (bivalvia) on natural phytoplankton
url http://hdl.handle.net/20.500.12110/paper_00188158_v312_n3_p171_Boltovskoy
work_keys_str_mv AT boltovskoyd feedingselectivityofcorbiculaflumineabivalviaonnaturalphytoplankton
AT izaguirrei feedingselectivityofcorbiculaflumineabivalviaonnaturalphytoplankton
AT correan feedingselectivityofcorbiculaflumineabivalviaonnaturalphytoplankton
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