Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/1894 |
Resumo: | The relative importance of carbon sources supporting aquatic food webs within and among estuaries may be influenced by factors that affect relative availability of autotrophic carbon sources, as well as movement of individuals among marine, estuarine and freshwater zones. We used stable isotopes of carbon and nitrogen to examine (1) the relative importance of carbon sources supporting estuarine consumers among estuaries with different hydrogeomorphic characteristics, (2) stable isotope signatures of consumer ecological guilds defined by dependence on estuarine habitats and residence time, and (3) if patterns in stable isotope signatures of ecological guilds repeat across estuaries with distinct hydrogeomorphological features. At the assemblage level, consumer carbon isotope signatures reflected the consumption of locally abundant primary production sources and differed across estuary types (choked lagoon, coastal river). Consumer ecological guilds differed in d13C within sites, and the same trend repeated across sites but with differing magnitudes. This variation is attributed to movement and residence patterns in addition to differences in the relative abundances of autotrophic sources across sites. Although within-estuary variation in consumer resource use is to be expected, estuarine food webs may be broadly classified according to landscapescale hydrogeomorphic factors that allow an initial prediction of the relative importance of carbon sources to secondary production. Predictions may be refined at the species level using knowledge of habitat use and residence time. Such predictions are useful as a starting point for poorly studied regions such as ours in southern Brazil, as well as for globalscale analyses of patterns in estuarine food webs. |
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Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guildsBrazilFood webMigrationSalt marshSouth AmericaSubsidiesThe relative importance of carbon sources supporting aquatic food webs within and among estuaries may be influenced by factors that affect relative availability of autotrophic carbon sources, as well as movement of individuals among marine, estuarine and freshwater zones. We used stable isotopes of carbon and nitrogen to examine (1) the relative importance of carbon sources supporting estuarine consumers among estuaries with different hydrogeomorphic characteristics, (2) stable isotope signatures of consumer ecological guilds defined by dependence on estuarine habitats and residence time, and (3) if patterns in stable isotope signatures of ecological guilds repeat across estuaries with distinct hydrogeomorphological features. At the assemblage level, consumer carbon isotope signatures reflected the consumption of locally abundant primary production sources and differed across estuary types (choked lagoon, coastal river). Consumer ecological guilds differed in d13C within sites, and the same trend repeated across sites but with differing magnitudes. This variation is attributed to movement and residence patterns in addition to differences in the relative abundances of autotrophic sources across sites. Although within-estuary variation in consumer resource use is to be expected, estuarine food webs may be broadly classified according to landscapescale hydrogeomorphic factors that allow an initial prediction of the relative importance of carbon sources to secondary production. Predictions may be refined at the species level using knowledge of habitat use and residence time. Such predictions are useful as a starting point for poorly studied regions such as ours in southern Brazil, as well as for globalscale analyses of patterns in estuarine food webs.2012-03-14T18:45:14Z2012-03-14T18:45:14Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfHOEINGHAUS, David Joseph et al. Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds. Hydrobiologia, v. 673, p. 79–92, 2011. Disponível em :<http://wfsc.tamu.edu/winemiller/lab/PDFs/Hoeinghaus%20et%20al.%202011%20Estuary%20hydrogeomorphology%20.pdf>. Acesso em: 12 jan. 2012.http://repositorio.furg.br/handle/1/189410.1007/s10750-011-0751-zengHoeinghaus, David JosephVieira Sobrinho, João PaesCosta, César Serra BonifácioBemvenuti, Carlos EmílioWinemiller, KirkGarcia, Alexandre Mirandainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2022-10-19T19:24:39Zoai:repositorio.furg.br:1/1894Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2022-10-19T19:24:39Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
title |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
spellingShingle |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds Hoeinghaus, David Joseph Brazil Food web Migration Salt marsh South America Subsidies |
title_short |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
title_full |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
title_fullStr |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
title_full_unstemmed |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
title_sort |
Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds |
author |
Hoeinghaus, David Joseph |
author_facet |
Hoeinghaus, David Joseph Vieira Sobrinho, João Paes Costa, César Serra Bonifácio Bemvenuti, Carlos Emílio Winemiller, Kirk Garcia, Alexandre Miranda |
author_role |
author |
author2 |
Vieira Sobrinho, João Paes Costa, César Serra Bonifácio Bemvenuti, Carlos Emílio Winemiller, Kirk Garcia, Alexandre Miranda |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Hoeinghaus, David Joseph Vieira Sobrinho, João Paes Costa, César Serra Bonifácio Bemvenuti, Carlos Emílio Winemiller, Kirk Garcia, Alexandre Miranda |
dc.subject.por.fl_str_mv |
Brazil Food web Migration Salt marsh South America Subsidies |
topic |
Brazil Food web Migration Salt marsh South America Subsidies |
description |
The relative importance of carbon sources supporting aquatic food webs within and among estuaries may be influenced by factors that affect relative availability of autotrophic carbon sources, as well as movement of individuals among marine, estuarine and freshwater zones. We used stable isotopes of carbon and nitrogen to examine (1) the relative importance of carbon sources supporting estuarine consumers among estuaries with different hydrogeomorphic characteristics, (2) stable isotope signatures of consumer ecological guilds defined by dependence on estuarine habitats and residence time, and (3) if patterns in stable isotope signatures of ecological guilds repeat across estuaries with distinct hydrogeomorphological features. At the assemblage level, consumer carbon isotope signatures reflected the consumption of locally abundant primary production sources and differed across estuary types (choked lagoon, coastal river). Consumer ecological guilds differed in d13C within sites, and the same trend repeated across sites but with differing magnitudes. This variation is attributed to movement and residence patterns in addition to differences in the relative abundances of autotrophic sources across sites. Although within-estuary variation in consumer resource use is to be expected, estuarine food webs may be broadly classified according to landscapescale hydrogeomorphic factors that allow an initial prediction of the relative importance of carbon sources to secondary production. Predictions may be refined at the species level using knowledge of habitat use and residence time. Such predictions are useful as a starting point for poorly studied regions such as ours in southern Brazil, as well as for globalscale analyses of patterns in estuarine food webs. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2012-03-14T18:45:14Z 2012-03-14T18:45:14Z |
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 |
HOEINGHAUS, David Joseph et al. Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds. Hydrobiologia, v. 673, p. 79–92, 2011. Disponível em :<http://wfsc.tamu.edu/winemiller/lab/PDFs/Hoeinghaus%20et%20al.%202011%20Estuary%20hydrogeomorphology%20.pdf>. Acesso em: 12 jan. 2012. http://repositorio.furg.br/handle/1/1894 10.1007/s10750-011-0751-z |
identifier_str_mv |
HOEINGHAUS, David Joseph et al. Estuary hydrogeomorphology affects carbon sources supporting aquatic consumers within and among ecological guilds. Hydrobiologia, v. 673, p. 79–92, 2011. Disponível em :<http://wfsc.tamu.edu/winemiller/lab/PDFs/Hoeinghaus%20et%20al.%202011%20Estuary%20hydrogeomorphology%20.pdf>. Acesso em: 12 jan. 2012. 10.1007/s10750-011-0751-z |
url |
http://repositorio.furg.br/handle/1/1894 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
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1807384389768708096 |