Trophic relationships of Limnoperna fortunei with adult fishes

In South America, the inventory of species that feed on Limnoperna fortunei has increased steadily; in 2006, 18 fish species had been identified as predators of L. fortunei, whereas 7 years later, the list had grown to almost 50 species. In some areas, fishes that consume L. fortunei represent >...

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Autor principal:	Cataldo, Daniel Hugo
Publicado:	2015
Materias:	Ecological impact Fish diet Golden mussel Limnoperna fortunei Predation by fish Trophic interactions
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p231_Cataldo http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p231_Cataldo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_97833191_v_n_p231_Cataldo
record_format	dspace
spelling	paper:paper_97833191_v_n_p231_Cataldo2025-07-30T19:14:31Z Trophic relationships of Limnoperna fortunei with adult fishes Cataldo, Daniel Hugo Ecological impact Fish diet Golden mussel Limnoperna fortunei Predation by fish Trophic interactions In South America, the inventory of species that feed on Limnoperna fortunei has increased steadily; in 2006, 18 fish species had been identified as predators of L. fortunei, whereas 7 years later, the list had grown to almost 50 species. In some areas, fishes that consume L. fortunei represent > 50 % of the species regularly present in commercial fisheries, including traditionally omnivorous, iliophagous, and ichthyophagous forms. Several economically important species have significantly changed their feeding habits since the mussel’s introduction, shifting from a diet based on plants and detritus to one dominated by adult mussels. Consumption of golden mussels is not restricted to fishes provided with teeth that can crush and grind the shells; many toothless species swallow whole specimens or nibble on the exposed siphons and mantle edges of the bivalve. Golden mussels can account for up to 100 % of the gut contents of some fish species, especially during the summer. Feeding of fishes on L. fortunei often involves the selective consumption of the smaller mussel size classes. Fish predation pressure on the mussel is likely high and it probably represents the most significant mechanism that modulates L. fortunei populations, but it is very unlikely to eradicate the mussel altogether. No comprehensive, large-scale studies are yet available on the effects of this new food supply on local fish stocks, but ancillary information suggests that these effects are likely very significant. Impacts are not restricted to species that consume the mollusc, but also affect species that benefit from this new food resource indirectly, including large ichthyophagous species feeding on molluscivorous forms, as well as on those that consume the organic matter-enriched sediments by the mussel’s feces and pseudofeces. © Springer International Publishing Switzerland 2015. Fil:Cataldo, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p231_Cataldo http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p231_Cataldo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Ecological impact Fish diet Golden mussel Limnoperna fortunei Predation by fish Trophic interactions
spellingShingle	Ecological impact Fish diet Golden mussel Limnoperna fortunei Predation by fish Trophic interactions Cataldo, Daniel Hugo Trophic relationships of Limnoperna fortunei with adult fishes
topic_facet	Ecological impact Fish diet Golden mussel Limnoperna fortunei Predation by fish Trophic interactions
description	In South America, the inventory of species that feed on Limnoperna fortunei has increased steadily; in 2006, 18 fish species had been identified as predators of L. fortunei, whereas 7 years later, the list had grown to almost 50 species. In some areas, fishes that consume L. fortunei represent > 50 % of the species regularly present in commercial fisheries, including traditionally omnivorous, iliophagous, and ichthyophagous forms. Several economically important species have significantly changed their feeding habits since the mussel’s introduction, shifting from a diet based on plants and detritus to one dominated by adult mussels. Consumption of golden mussels is not restricted to fishes provided with teeth that can crush and grind the shells; many toothless species swallow whole specimens or nibble on the exposed siphons and mantle edges of the bivalve. Golden mussels can account for up to 100 % of the gut contents of some fish species, especially during the summer. Feeding of fishes on L. fortunei often involves the selective consumption of the smaller mussel size classes. Fish predation pressure on the mussel is likely high and it probably represents the most significant mechanism that modulates L. fortunei populations, but it is very unlikely to eradicate the mussel altogether. No comprehensive, large-scale studies are yet available on the effects of this new food supply on local fish stocks, but ancillary information suggests that these effects are likely very significant. Impacts are not restricted to species that consume the mollusc, but also affect species that benefit from this new food resource indirectly, including large ichthyophagous species feeding on molluscivorous forms, as well as on those that consume the organic matter-enriched sediments by the mussel’s feces and pseudofeces. © Springer International Publishing Switzerland 2015.
author	Cataldo, Daniel Hugo
author_facet	Cataldo, Daniel Hugo
author_sort	Cataldo, Daniel Hugo
title	Trophic relationships of Limnoperna fortunei with adult fishes
title_short	Trophic relationships of Limnoperna fortunei with adult fishes
title_full	Trophic relationships of Limnoperna fortunei with adult fishes
title_fullStr	Trophic relationships of Limnoperna fortunei with adult fishes
title_full_unstemmed	Trophic relationships of Limnoperna fortunei with adult fishes
title_sort	trophic relationships of limnoperna fortunei with adult fishes
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p231_Cataldo http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p231_Cataldo
work_keys_str_mv	AT cataldodanielhugo trophicrelationshipsoflimnopernafortuneiwithadultfishes
_version_	1840325276790161408

Trophic relationships of Limnoperna fortunei with adult fishes

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