Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality

Mussels have important ecological functions in freshwater ecosystems, but populations are declining in many rivers worldwide. In the Amazon, which is undergoing widespread human-mediated alterations, information on mussel ecology is lacking. We investigated whether declines in mussel density, due to...

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Autores principales:	Diego Simeone, Claudia Helena Tagliaro, Colin Robert Beasley
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Bivalve declines Biodiversity Ecological functions Exploitation Functional groups Management Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/e3cf7892129a4cad922646144d549e5c
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spelling	oai:doaj.org-article:e3cf7892129a4cad922646144d549e5c2021-12-01T04:41:54ZAmazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality1470-160X10.1016/j.ecolind.2020.107300https://doaj.org/article/e3cf7892129a4cad922646144d549e5c2021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312425https://doaj.org/toc/1470-160XMussels have important ecological functions in freshwater ecosystems, but populations are declining in many rivers worldwide. In the Amazon, which is undergoing widespread human-mediated alterations, information on mussel ecology is lacking. We investigated whether declines in mussel density, due to exploitation, are associated with lower macroinvertebrate assemblage taxon richness and modified habitat functioning in an Amazonian river. Between 2015 and 2017, macroinvertebrate metrics of abundance and number of families, and related habitat variables, were compared between exploited and unexploited mussel beds in the Caeté river, northeastern Pará state, Brazil. Except for Chironomidae abundance, which increased, other macroinvertebrate metrics decreased in exploited mussel beds, especially abundances of shredders and predators. Medium and high mussel densities appear to support abundant and diverse macroinvertebrate assemblages. Macroinvertebrate decreases were mainly correlated with lower organic matter in the sediment and higher dissolved solids in the water column, due to losses in mussel biodeposition and filtration functions. Amazonian freshwater mussel density is a useful indicator of abundant and diverse macroinvertebrate assemblages, and mussel beds may help prioritize locations for habitat conservation in Amazonian rivers, and indirectly for fishes that are essential for mussel dispersion. Aquatic management efforts should explicitly include mussel beds and their diverse associated macroinvertebrate assemblages.Diego SimeoneClaudia Helena TagliaroColin Robert BeasleyElsevierarticleBivalve declinesBiodiversityEcological functionsExploitationFunctional groupsManagementEcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107300- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bivalve declines Biodiversity Ecological functions Exploitation Functional groups Management Ecology QH540-549.5
spellingShingle	Bivalve declines Biodiversity Ecological functions Exploitation Functional groups Management Ecology QH540-549.5 Diego Simeone Claudia Helena Tagliaro Colin Robert Beasley Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
description	Mussels have important ecological functions in freshwater ecosystems, but populations are declining in many rivers worldwide. In the Amazon, which is undergoing widespread human-mediated alterations, information on mussel ecology is lacking. We investigated whether declines in mussel density, due to exploitation, are associated with lower macroinvertebrate assemblage taxon richness and modified habitat functioning in an Amazonian river. Between 2015 and 2017, macroinvertebrate metrics of abundance and number of families, and related habitat variables, were compared between exploited and unexploited mussel beds in the Caeté river, northeastern Pará state, Brazil. Except for Chironomidae abundance, which increased, other macroinvertebrate metrics decreased in exploited mussel beds, especially abundances of shredders and predators. Medium and high mussel densities appear to support abundant and diverse macroinvertebrate assemblages. Macroinvertebrate decreases were mainly correlated with lower organic matter in the sediment and higher dissolved solids in the water column, due to losses in mussel biodeposition and filtration functions. Amazonian freshwater mussel density is a useful indicator of abundant and diverse macroinvertebrate assemblages, and mussel beds may help prioritize locations for habitat conservation in Amazonian rivers, and indirectly for fishes that are essential for mussel dispersion. Aquatic management efforts should explicitly include mussel beds and their diverse associated macroinvertebrate assemblages.
format	article
author	Diego Simeone Claudia Helena Tagliaro Colin Robert Beasley
author_facet	Diego Simeone Claudia Helena Tagliaro Colin Robert Beasley
author_sort	Diego Simeone
title	Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
title_short	Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
title_full	Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
title_fullStr	Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
title_full_unstemmed	Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality
title_sort	amazonian freshwater mussel density: a useful indicator of macroinvertebrate assemblage and habitat quality
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/e3cf7892129a4cad922646144d549e5c
work_keys_str_mv	AT diegosimeone amazonianfreshwatermusseldensityausefulindicatorofmacroinvertebrateassemblageandhabitatquality AT claudiahelenatagliaro amazonianfreshwatermusseldensityausefulindicatorofmacroinvertebrateassemblageandhabitatquality AT colinrobertbeasley amazonianfreshwatermusseldensityausefulindicatorofmacroinvertebrateassemblageandhabitatquality
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Amazonian freshwater mussel density: A useful indicator of macroinvertebrate assemblage and habitat quality

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