Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil)
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11252-018-0755-9 http://hdl.handle.net/11449/176138 |
Resumo: | Alterations in stream environments can alter fish food availability, but there is little research data related to the impacts of urbanization on fish diets in tropical streams. Thus, we sought to compare the diet of ten fish species in urbanized and non-urbanized streams reaches. Fish stomach contents were obtained for four urban and five non-urban stream reaches from two medium-sized cities. We verified the similarity of diet composition from urbanized/non-urbanized streams. In-stream features mainly related to the substrate highlighted a perturbation gradient: gravel, pebbles and cobbles were associated to the wider urban reaches while silt were representative in the narrow pools from non-urban streams. Fishes changed their diet in response to urban and non-urban treatments. Omnivorous fishes consumed more detritus and Chironomidae and less terrestrial adult insects in urban reaches, while invertivorous fish consumed more terrestrial adult insects and Trichoptera larvae in the non-urbanized stream reaches. Although the management of the physical structure of streams in Brazil has been basically focused on riparian reforestation, our results suggest that a restoration plan for urban streams cannot be limited to reforestation of its surroundings, but also need to consider the physical structure of the channel, especially the substrate, which contributes to promote in-stream variability. |
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Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil)ChironomidaeDetritusInvertivorousOmnivorousAlterations in stream environments can alter fish food availability, but there is little research data related to the impacts of urbanization on fish diets in tropical streams. Thus, we sought to compare the diet of ten fish species in urbanized and non-urbanized streams reaches. Fish stomach contents were obtained for four urban and five non-urban stream reaches from two medium-sized cities. We verified the similarity of diet composition from urbanized/non-urbanized streams. In-stream features mainly related to the substrate highlighted a perturbation gradient: gravel, pebbles and cobbles were associated to the wider urban reaches while silt were representative in the narrow pools from non-urban streams. Fishes changed their diet in response to urban and non-urban treatments. Omnivorous fishes consumed more detritus and Chironomidae and less terrestrial adult insects in urban reaches, while invertivorous fish consumed more terrestrial adult insects and Trichoptera larvae in the non-urbanized stream reaches. Although the management of the physical structure of streams in Brazil has been basically focused on riparian reforestation, our results suggest that a restoration plan for urban streams cannot be limited to reforestation of its surroundings, but also need to consider the physical structure of the channel, especially the substrate, which contributes to promote in-stream variability.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Programa Peixe Vivo – Companhia Energetica Minas Gerais (Cemig), Av. Barbacena, 1200, Santa AgostinhoDepartamento de Zoologia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Av. 24A, 1515, 13506-900, Rio ClaroDepartamento de Ciências Ambientais (DCA) Universidade Federal de São Carlos (UFSCar) – Sorocaba, Rodovia João Leme dos Santos (SP 264), km 110, 18.052-780, SorocabaDepartamento de Zoologia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Av. 24A, 1515, 13506-900, Rio ClaroFAPESP: 2009/53056-8FAPESP: 2010/13758-0Programa Peixe Vivo – Companhia Energetica Minas Gerais (Cemig)Universidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Peressin, Alexandreda Silva Gonçalves, Cristina [UNESP]Cetra, Mauricio2018-12-11T17:19:13Z2018-12-11T17:19:13Z2018-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article795-803application/pdfhttp://dx.doi.org/10.1007/s11252-018-0755-9Urban Ecosystems, v. 21, n. 4, p. 795-803, 2018.1573-16421083-8155http://hdl.handle.net/11449/17613810.1007/s11252-018-0755-92-s2.0-850449649562-s2.0-85044964956.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengUrban Ecosystems0,836info:eu-repo/semantics/openAccess2023-11-06T06:13:27Zoai:repositorio.unesp.br:11449/176138Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:02:56.544141Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
title |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
spellingShingle |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) Peressin, Alexandre Chironomidae Detritus Invertivorous Omnivorous |
title_short |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
title_full |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
title_fullStr |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
title_full_unstemmed |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
title_sort |
Ichthyofauna diet changes in response to urbanization: the case of upper Paranapanema River basin (Brazil) |
author |
Peressin, Alexandre |
author_facet |
Peressin, Alexandre da Silva Gonçalves, Cristina [UNESP] Cetra, Mauricio |
author_role |
author |
author2 |
da Silva Gonçalves, Cristina [UNESP] Cetra, Mauricio |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Programa Peixe Vivo – Companhia Energetica Minas Gerais (Cemig) Universidade Estadual Paulista (Unesp) Universidade Federal de São Carlos (UFSCar) |
dc.contributor.author.fl_str_mv |
Peressin, Alexandre da Silva Gonçalves, Cristina [UNESP] Cetra, Mauricio |
dc.subject.por.fl_str_mv |
Chironomidae Detritus Invertivorous Omnivorous |
topic |
Chironomidae Detritus Invertivorous Omnivorous |
description |
Alterations in stream environments can alter fish food availability, but there is little research data related to the impacts of urbanization on fish diets in tropical streams. Thus, we sought to compare the diet of ten fish species in urbanized and non-urbanized streams reaches. Fish stomach contents were obtained for four urban and five non-urban stream reaches from two medium-sized cities. We verified the similarity of diet composition from urbanized/non-urbanized streams. In-stream features mainly related to the substrate highlighted a perturbation gradient: gravel, pebbles and cobbles were associated to the wider urban reaches while silt were representative in the narrow pools from non-urban streams. Fishes changed their diet in response to urban and non-urban treatments. Omnivorous fishes consumed more detritus and Chironomidae and less terrestrial adult insects in urban reaches, while invertivorous fish consumed more terrestrial adult insects and Trichoptera larvae in the non-urbanized stream reaches. Although the management of the physical structure of streams in Brazil has been basically focused on riparian reforestation, our results suggest that a restoration plan for urban streams cannot be limited to reforestation of its surroundings, but also need to consider the physical structure of the channel, especially the substrate, which contributes to promote in-stream variability. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:19:13Z 2018-12-11T17:19:13Z 2018-08-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s11252-018-0755-9 Urban Ecosystems, v. 21, n. 4, p. 795-803, 2018. 1573-1642 1083-8155 http://hdl.handle.net/11449/176138 10.1007/s11252-018-0755-9 2-s2.0-85044964956 2-s2.0-85044964956.pdf |
url |
http://dx.doi.org/10.1007/s11252-018-0755-9 http://hdl.handle.net/11449/176138 |
identifier_str_mv |
Urban Ecosystems, v. 21, n. 4, p. 795-803, 2018. 1573-1642 1083-8155 10.1007/s11252-018-0755-9 2-s2.0-85044964956 2-s2.0-85044964956.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Urban Ecosystems 0,836 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
795-803 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128745735716864 |