The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10750-015-2447-2 http://hdl.handle.net/11449/172151 |
Resumo: | Free-floating plants are important components of aquatic ecosystems in tropical climates, playing a key role in the structure and spatial distribution of fish communities. This study aims at elucidating the potential effects of free-floating vegetation on fish community structure in a tropical floodplain lake, using an experimental approach based on natural and artificial devices (Eichhornia crassipes), in high and low (LT) turbidity waters. A total of 32 fish species were found, richness, abundance, biomass, mean fresh body weight, and standard length were all significantly higher in the LT regions. Although no significant differences of community traits were found between artificial and natural substrates, regardless of water turbidity, fish composition differences between devices were observed in clear waters. Benthivorous fishes were the most widespread trophic group, with higher abundance and biomass in LT, while no differences were found among plant types. The results confirmed the structural role played by free-floating plants in the fish community by offering a refuge to smaller bodied fish species and younger specimens of larger species, independently of turbidity conditions. However, the effect was stronger in clear waters. The evidence also supported the hypothesis that the fish community forages within the plant beds. Turbidity spatial gradients or turbid regimes in tropical shallow lakes, as well as important floating macrophyte coverage could have strong impacts on the fish community structure. |
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The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plantsBrazilFood resourcesPantanalPredation refugeTrophic interactionsTropical floodplainFree-floating plants are important components of aquatic ecosystems in tropical climates, playing a key role in the structure and spatial distribution of fish communities. This study aims at elucidating the potential effects of free-floating vegetation on fish community structure in a tropical floodplain lake, using an experimental approach based on natural and artificial devices (Eichhornia crassipes), in high and low (LT) turbidity waters. A total of 32 fish species were found, richness, abundance, biomass, mean fresh body weight, and standard length were all significantly higher in the LT regions. Although no significant differences of community traits were found between artificial and natural substrates, regardless of water turbidity, fish composition differences between devices were observed in clear waters. Benthivorous fishes were the most widespread trophic group, with higher abundance and biomass in LT, while no differences were found among plant types. The results confirmed the structural role played by free-floating plants in the fish community by offering a refuge to smaller bodied fish species and younger specimens of larger species, independently of turbidity conditions. However, the effect was stronger in clear waters. The evidence also supported the hypothesis that the fish community forages within the plant beds. Turbidity spatial gradients or turbid regimes in tropical shallow lakes, as well as important floating macrophyte coverage could have strong impacts on the fish community structure.Departamento de Ecología Teórica y Aplicada CURE-Facultad de Ciencias Universidad de la RepúblicaDepartamento de Ciências Biológicas Universidade Federal de Mato GrossoMuseu Nacional Universidade Federal do Rio de JaneiroEnvironmental Hydraulics Institute Universidad de CantabriaDepartamento de Geografia Instituto de Geociências e Ciências Exatas UNESP – Univ. Estadual PaulistaDepartamento de Biologia Instituto de Ciências Biológicas Universidade Federal de Juiz de ForaDepartamento de Geografia Instituto de Geociências e Ciências Exatas UNESP – Univ. Estadual PaulistaUniversidad de la RepúblicaUniversidade Federal de Mato GrossoUniversidade Federal do Rio de Janeiro (UFRJ)Universidad de CantabriaUniversidade Estadual Paulista (Unesp)Universidade Federal de Juiz de ForaTeixeira-de Mello, Francode Oliveira, Valdeci AntonioLoverde-Oliveira, Simoni MariaHuszar, Vera Lucia M.Barquín, JoséIglesias, CarlosSilva, Thiago Sanna Freire [UNESP]Duque-Estrada, Carlos HenriqueSilió-Calzada, AnaMazzeo, Néstor2018-12-11T16:58:56Z2018-12-11T16:58:56Z2016-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article167-178application/pdfhttp://dx.doi.org/10.1007/s10750-015-2447-2Hydrobiologia, v. 778, n. 1, p. 167-178, 2016.1573-51170018-8158http://hdl.handle.net/11449/17215110.1007/s10750-015-2447-22-s2.0-849451621012-s2.0-84945162101.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHydrobiologia0,896info:eu-repo/semantics/openAccess2023-11-17T06:10:22Zoai:repositorio.unesp.br:11449/172151Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-17T06:10:22Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
title |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
spellingShingle |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants Teixeira-de Mello, Franco Brazil Food resources Pantanal Predation refuge Trophic interactions Tropical floodplain |
title_short |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
title_full |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
title_fullStr |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
title_full_unstemmed |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
title_sort |
The structuring role of free-floating plants on the fish community in a tropical shallow lake: an experimental approach with natural and artificial plants |
author |
Teixeira-de Mello, Franco |
author_facet |
Teixeira-de Mello, Franco de Oliveira, Valdeci Antonio Loverde-Oliveira, Simoni Maria Huszar, Vera Lucia M. Barquín, José Iglesias, Carlos Silva, Thiago Sanna Freire [UNESP] Duque-Estrada, Carlos Henrique Silió-Calzada, Ana Mazzeo, Néstor |
author_role |
author |
author2 |
de Oliveira, Valdeci Antonio Loverde-Oliveira, Simoni Maria Huszar, Vera Lucia M. Barquín, José Iglesias, Carlos Silva, Thiago Sanna Freire [UNESP] Duque-Estrada, Carlos Henrique Silió-Calzada, Ana Mazzeo, Néstor |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidad de la República Universidade Federal de Mato Grosso Universidade Federal do Rio de Janeiro (UFRJ) Universidad de Cantabria Universidade Estadual Paulista (Unesp) Universidade Federal de Juiz de Fora |
dc.contributor.author.fl_str_mv |
Teixeira-de Mello, Franco de Oliveira, Valdeci Antonio Loverde-Oliveira, Simoni Maria Huszar, Vera Lucia M. Barquín, José Iglesias, Carlos Silva, Thiago Sanna Freire [UNESP] Duque-Estrada, Carlos Henrique Silió-Calzada, Ana Mazzeo, Néstor |
dc.subject.por.fl_str_mv |
Brazil Food resources Pantanal Predation refuge Trophic interactions Tropical floodplain |
topic |
Brazil Food resources Pantanal Predation refuge Trophic interactions Tropical floodplain |
description |
Free-floating plants are important components of aquatic ecosystems in tropical climates, playing a key role in the structure and spatial distribution of fish communities. This study aims at elucidating the potential effects of free-floating vegetation on fish community structure in a tropical floodplain lake, using an experimental approach based on natural and artificial devices (Eichhornia crassipes), in high and low (LT) turbidity waters. A total of 32 fish species were found, richness, abundance, biomass, mean fresh body weight, and standard length were all significantly higher in the LT regions. Although no significant differences of community traits were found between artificial and natural substrates, regardless of water turbidity, fish composition differences between devices were observed in clear waters. Benthivorous fishes were the most widespread trophic group, with higher abundance and biomass in LT, while no differences were found among plant types. The results confirmed the structural role played by free-floating plants in the fish community by offering a refuge to smaller bodied fish species and younger specimens of larger species, independently of turbidity conditions. However, the effect was stronger in clear waters. The evidence also supported the hypothesis that the fish community forages within the plant beds. Turbidity spatial gradients or turbid regimes in tropical shallow lakes, as well as important floating macrophyte coverage could have strong impacts on the fish community structure. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-01 2018-12-11T16:58:56Z 2018-12-11T16:58:56Z |
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/s10750-015-2447-2 Hydrobiologia, v. 778, n. 1, p. 167-178, 2016. 1573-5117 0018-8158 http://hdl.handle.net/11449/172151 10.1007/s10750-015-2447-2 2-s2.0-84945162101 2-s2.0-84945162101.pdf |
url |
http://dx.doi.org/10.1007/s10750-015-2447-2 http://hdl.handle.net/11449/172151 |
identifier_str_mv |
Hydrobiologia, v. 778, n. 1, p. 167-178, 2016. 1573-5117 0018-8158 10.1007/s10750-015-2447-2 2-s2.0-84945162101 2-s2.0-84945162101.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Hydrobiologia 0,896 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
167-178 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_ |
1803046523985985536 |