The role of fish communities in the eutrophication of Shallow Lakes

P.41-66

Detalhes bibliográficos
Autor: Blanco Lanza, Saúl
Tipo de documento: capítulo de livro
Data de publicação:2010
País:España
Recursos:Universidad Rey Juan Carlos
Repositório:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/6997
Acesso em linha:http://hdl.handle.net/10612/6997
Access Level:Acceso aberto
Palavra-chave:Biología
Ecología. Medio ambiente
Lagos
Peces
Fish
Conservación
Shallow Lakes
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spelling The role of fish communities in the eutrophication of Shallow LakesBlanco Lanza, SaúlBiologíaEcología. Medio ambienteLagosPecesFishConservaciónShallow LakesP.41-66The progressive anthropogenic eutrophication, the uncontrolled introduction of exotic fish species, and the lack of conservation and management strategies are highlighted as the main causes explaining the long-term changes in water biological quality in freshwater ponds and their surrounding aquatic ecosystems worldwide. Experimental evidence shows that fish direct and indirect effects on lake food web lead to algal growths and increased turbidity and nutrients concentration in fish-added treatments. Consequently, submerged macrophytes and epiphytic algae usually decline at increasing nutrient levels. Additionally, many freshwater fishes exhibit a generalist diet with an important contribution of non-planktonic components, and ontogenic shift towards bentho-detritivory has been observed in several species. Field studies on the feeding ecology of both endemic and introduced taxa show that demographic changes and facultative predation influence food webs in freshwater ponds by both direct predation and indirect effects (sediment bioturbation and excretion), however, cascading effects caused by introduced fish species may be more relevant for the food webs in certain bioclimates, e.g. Mediterranean shallow ponds and wetlands, where almost no piscivorous species are recorded and, in general, omnivorous species dominate independently of lake trophic state. Thus, the role of direct and indirect effects of fishes and the importance of their dietary features are stressed as key factors for understanding the causes that control the trophic status of freshwater ponds. Fishes affect biodiversity, quality and water transparency. Restoration of eutrophic ponds must involve control of nutrient inputs and fish communities, with adequate policies for fish and plant management and conservationHauppauge: Nova Science Publishers, 2010EcologiaInstituto de Medio Ambiente, Recursos Naturales y Biodiversidad de la Universidad de Léon20102017info:eu-repo/semantics/bookParthttp://hdl.handle.net/10612/6997reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad Rey Juan CarlosInglésinfo:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/69972026-06-24T12:43:27Z
dc.title.none.fl_str_mv The role of fish communities in the eutrophication of Shallow Lakes
title The role of fish communities in the eutrophication of Shallow Lakes
spellingShingle The role of fish communities in the eutrophication of Shallow Lakes
Blanco Lanza, Saúl
Biología
Ecología. Medio ambiente
Lagos
Peces
Fish
Conservación
Shallow Lakes
title_short The role of fish communities in the eutrophication of Shallow Lakes
title_full The role of fish communities in the eutrophication of Shallow Lakes
title_fullStr The role of fish communities in the eutrophication of Shallow Lakes
title_full_unstemmed The role of fish communities in the eutrophication of Shallow Lakes
title_sort The role of fish communities in the eutrophication of Shallow Lakes
dc.creator.none.fl_str_mv Blanco Lanza, Saúl
author Blanco Lanza, Saúl
author_facet Blanco Lanza, Saúl
author_role author
dc.contributor.none.fl_str_mv Ecologia
Instituto de Medio Ambiente, Recursos Naturales y Biodiversidad de la Universidad de Léon
dc.subject.none.fl_str_mv Biología
Ecología. Medio ambiente
Lagos
Peces
Fish
Conservación
Shallow Lakes
topic Biología
Ecología. Medio ambiente
Lagos
Peces
Fish
Conservación
Shallow Lakes
description P.41-66
publishDate 2010
dc.date.none.fl_str_mv 2010
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv http://hdl.handle.net/10612/6997
url http://hdl.handle.net/10612/6997
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Hauppauge: Nova Science Publishers, 2010
publisher.none.fl_str_mv Hauppauge: Nova Science Publishers, 2010
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407505898012672
score 15,301629

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