Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina

A study of the presence of the freshwater mussel Limnoperna fortunei in the diet of the native fish Leporinus obtusidens was performed in Costanera Norte, Buenos Aires. Fish were collected monthly for a 1-year period to analyze their digestive tracts. From a total of 157 fish collected (20-55 cm tot...

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Autores principales: Penchaszadeh, Pablo Enrique, Averbuj, Andrés, Brogger, Martín I., Pírez, Nicolás
Publicado: 2000
Materias:
Fish predation
Invasive mussel
Limnoperna control
diet
predation
shellfish
stomach content
Argentina
Bivalvia
Leporinus obtusidens
Limnoperna
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07308000_v19_n1_p229_Penchaszadeh
http://hdl.handle.net/20.500.12110/paper_07308000_v19_n1_p229_Penchaszadeh
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_07308000_v19_n1_p229_Penchaszadeh
record_format dspace
spelling paper:paper_07308000_v19_n1_p229_Penchaszadeh2025-07-30T18:20:18Z Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina Penchaszadeh, Pablo Enrique Averbuj, Andrés Brogger, Martín I. Pírez, Nicolás Fish predation Invasive mussel Limnoperna control diet predation shellfish stomach content Argentina Bivalvia Leporinus obtusidens Limnoperna A study of the presence of the freshwater mussel Limnoperna fortunei in the diet of the native fish Leporinus obtusidens was performed in Costanera Norte, Buenos Aires. Fish were collected monthly for a 1-year period to analyze their digestive tracts. From a total of 157 fish collected (20-55 cm total length), 21 had empty digestive tracts. Of the remaining 136 individuals, 98 (72.1%) contained fragments of Limnoperna shells. The mussel represented 14.5% of the stomach content dry weight and 44.4% of the intestinal content dry weight. Limnoperna was present in almost all fish over 30 cm (total length). The largest number of mussels ingested by a Leporinus individual was 77, estimated by mussel beak count. Mussels 15-20mm in shell length to be the most abundant in Leporinus digestive tract. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Averbuj, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Brögger, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pírez, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07308000_v19_n1_p229_Penchaszadeh http://hdl.handle.net/20.500.12110/paper_07308000_v19_n1_p229_Penchaszadeh
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Fish predation
Invasive mussel
Limnoperna control
diet
predation
shellfish
stomach content
Argentina
Bivalvia
Leporinus obtusidens
Limnoperna
spellingShingle Fish predation
Invasive mussel
Limnoperna control
diet
predation
shellfish
stomach content
Argentina
Bivalvia
Leporinus obtusidens
Limnoperna
Penchaszadeh, Pablo Enrique
Averbuj, Andrés
Brogger, Martín I.
Pírez, Nicolás
Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
topic_facet Fish predation
Invasive mussel
Limnoperna control
diet
predation
shellfish
stomach content
Argentina
Bivalvia
Leporinus obtusidens
Limnoperna
description A study of the presence of the freshwater mussel Limnoperna fortunei in the diet of the native fish Leporinus obtusidens was performed in Costanera Norte, Buenos Aires. Fish were collected monthly for a 1-year period to analyze their digestive tracts. From a total of 157 fish collected (20-55 cm total length), 21 had empty digestive tracts. Of the remaining 136 individuals, 98 (72.1%) contained fragments of Limnoperna shells. The mussel represented 14.5% of the stomach content dry weight and 44.4% of the intestinal content dry weight. Limnoperna was present in almost all fish over 30 cm (total length). The largest number of mussels ingested by a Leporinus individual was 77, estimated by mussel beak count. Mussels 15-20mm in shell length to be the most abundant in Leporinus digestive tract.
author Penchaszadeh, Pablo Enrique
Averbuj, Andrés
Brogger, Martín I.
Pírez, Nicolás
author_facet Penchaszadeh, Pablo Enrique
Averbuj, Andrés
Brogger, Martín I.
Pírez, Nicolás
author_sort Penchaszadeh, Pablo Enrique
title Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
title_short Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
title_full Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
title_fullStr Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
title_full_unstemmed Predation of the invasive freshwater mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) by the fish Leporinus obtusidens valenciennes, 1846 (Anostomidae) in the Rio de la Plata, Argentina
title_sort predation of the invasive freshwater mussel limnoperna fortunei (dunker, 1857) (mytilidae) by the fish leporinus obtusidens valenciennes, 1846 (anostomidae) in the rio de la plata, argentina
publishDate 2000
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07308000_v19_n1_p229_Penchaszadeh
http://hdl.handle.net/20.500.12110/paper_07308000_v19_n1_p229_Penchaszadeh
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