Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream
Mediterranean streams are characterised by seasonal droughts, the frequency and intensity of which vary spatially and are expected to increase with global change. We studied the potential effects of drought and climate change on the fish assemblage and its trophic ecology in a Mediterranean stream b...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10256/12984 |
| Acceso en línea: | http://hdl.handle.net/10256/12984 |
| Access Level: | acceso embargado |
| Palabra clave: | Ecologia fluvial Stream ecology Ecologia d'aigua dolça Freshwater ecology Biologia aquàtica Aquatic biology Ecosistemes mediterranis Mediterranean-type ecosystems |
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Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean streamMas-Martí, EstherGarcía-Berthou, EmiliSabater, SergiTomanova, SylvieMuñoz Gràcia, IsabelEcologia fluvialStream ecologyEcologia d'aigua dolçaFreshwater ecologyBiologia aquàticaAquatic biologyEcosistemes mediterranisMediterranean-type ecosystemsMediterranean streams are characterised by seasonal droughts, the frequency and intensity of which vary spatially and are expected to increase with global change. We studied the potential effects of drought and climate change on the fish assemblage and its trophic ecology in a Mediterranean stream by comparing an intermittent tributary with two more permanent neighbouring reaches. Although the three sites were dominated by the same two fish species, Mediterranean barbel (Barbus meridionalis) and chub (Squalius laietanus), the intermittent tributary had a lower overall fish density and fewer eel (Anguilla anguilla). The intermittent tributary had macroinvertebrates with lower density, smaller taxa and higher diversity. Fish in the intermittent tributary had significantly lower biomasses in their gut contents (adjusted for fish length) and more negative electivities than those in the permanent reaches, as well as significantly lower taxonomic diversity. These results indicate that there was reduced resource availability in the intermittent tributary, which resulted in significantly lower condition and gonadal weight (adjusted for length) of barbel and chub. The data obtained in this Mediterranean stream support the observation that reduced water flow may affect fish at both individual and assemblage levelsThis study was financially supported by projects CGL2007-65549/BOS, CGL2008-05618-C02-02, CGL2009-12877-C02-01 and Consolider-Ingenio 2010 CSD2009-00065 of the Spanish Ministry of Science. Catalan Water Agency, the Government of Catalonia and the Barcelona Provincial Council (‘Observatori de la Tordera’)Springer VerlagMinisterio de Educación y Ciencia (Espanya)Ministerio de Ciencia e Innovación (Espanya)infoinfo2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10256/12984http://hdl.handle.net/10256/12984© Hydrobiologia, 2010, vol. 657, núm. 1, p. 167-180Articles publicats (D-CCAA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-010-0292-xinfo:eu-repo/semantics/altIdentifier/issn/0018-8158info:eu-repo/semantics/altIdentifier/eissn/1573-5117info:eu-repo/grantAgreement/MEC//CGL2007-65549info:eu-repo/grantAgreement/MICINN//CSD2009-00065Tots els drets reservatsinfo:eu-repo/semantics/embargoedAccessoai:recercat.cat:10256/129842026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| title |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| spellingShingle |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream Mas-Martí, Esther Ecologia fluvial Stream ecology Ecologia d'aigua dolça Freshwater ecology Biologia aquàtica Aquatic biology Ecosistemes mediterranis Mediterranean-type ecosystems |
| title_short |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| title_full |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| title_fullStr |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| title_full_unstemmed |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| title_sort |
Comparing fish assemblages and trophic ecology of permanent and intermittent reaches in a Mediterranean stream |
| dc.creator.none.fl_str_mv |
Mas-Martí, Esther García-Berthou, Emili Sabater, Sergi Tomanova, Sylvie Muñoz Gràcia, Isabel |
| author |
Mas-Martí, Esther |
| author_facet |
Mas-Martí, Esther García-Berthou, Emili Sabater, Sergi Tomanova, Sylvie Muñoz Gràcia, Isabel |
| author_role |
author |
| author2 |
García-Berthou, Emili Sabater, Sergi Tomanova, Sylvie Muñoz Gràcia, Isabel |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Educación y Ciencia (Espanya) Ministerio de Ciencia e Innovación (Espanya) |
| dc.subject.none.fl_str_mv |
Ecologia fluvial Stream ecology Ecologia d'aigua dolça Freshwater ecology Biologia aquàtica Aquatic biology Ecosistemes mediterranis Mediterranean-type ecosystems |
| topic |
Ecologia fluvial Stream ecology Ecologia d'aigua dolça Freshwater ecology Biologia aquàtica Aquatic biology Ecosistemes mediterranis Mediterranean-type ecosystems |
| description |
Mediterranean streams are characterised by seasonal droughts, the frequency and intensity of which vary spatially and are expected to increase with global change. We studied the potential effects of drought and climate change on the fish assemblage and its trophic ecology in a Mediterranean stream by comparing an intermittent tributary with two more permanent neighbouring reaches. Although the three sites were dominated by the same two fish species, Mediterranean barbel (Barbus meridionalis) and chub (Squalius laietanus), the intermittent tributary had a lower overall fish density and fewer eel (Anguilla anguilla). The intermittent tributary had macroinvertebrates with lower density, smaller taxa and higher diversity. Fish in the intermittent tributary had significantly lower biomasses in their gut contents (adjusted for fish length) and more negative electivities than those in the permanent reaches, as well as significantly lower taxonomic diversity. These results indicate that there was reduced resource availability in the intermittent tributary, which resulted in significantly lower condition and gonadal weight (adjusted for length) of barbel and chub. The data obtained in this Mediterranean stream support the observation that reduced water flow may affect fish at both individual and assemblage levels |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010 info info |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10256/12984 http://hdl.handle.net/10256/12984 |
| url |
http://hdl.handle.net/10256/12984 |
| dc.language.none.fl_str_mv |
Inglés |
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Inglés |
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info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-010-0292-x info:eu-repo/semantics/altIdentifier/issn/0018-8158 info:eu-repo/semantics/altIdentifier/eissn/1573-5117 info:eu-repo/grantAgreement/MEC//CGL2007-65549 info:eu-repo/grantAgreement/MICINN//CSD2009-00065 |
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Tots els drets reservats info:eu-repo/semantics/embargoedAccess |
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Tots els drets reservats |
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embargoedAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Springer Verlag |
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Springer Verlag |
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© Hydrobiologia, 2010, vol. 657, núm. 1, p. 167-180 Articles publicats (D-CCAA) reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Recercat. Dipósit de la Recerca de Catalunya |
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Recercat. Dipósit de la Recerca de Catalunya |
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15.81155 |