The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://repositorio.unifesp.br/handle/11600/56645 http://dx.doi.org/10.1371/journal.pone.0166679 |
Resumo: | The conservation and management of site-attached assemblages of coastal reefs are particularly challenging because of the tremendous environmental variation that exists at small spatial scales. In this sense, understanding the primary sources of variation in spatial patterns of the biota is fundamental for designing effective conservation policies. We investigated spatial variation in fish assemblages around the windward and leeward sides of coastal islands situated across a gradient of riverine influence (13 km in length). Specifically, relationships between rocky reef fish assemblages and benthic, topographic and physical predictors were assessed. We hypothesized that river induced disturbances may overcome local habitat features in modeling spatial patterns of fish distribution. Fish assemblages varied primarily due to the strong directional gradient of riverine influence (22.6% of the estimated components of variation), followed by topographic complexity (15%), wave exposure (9.9%), and benthic cover (8%). The trophic structure of fish assemblages changed from having a high abundance of invertebrate feeders in macroalgae-dominated reefs close to river mouths to a high proportion of herbivores, planktivores and invertebrate feeder species in reefs with large boulders covered by epilithic algal matrices, as the distance from rivers increased. This gradient led to an increase of 4.5-fold in fish richness and fish trophic group diversity, 11-fold in fish biomass and 10-fold in fish abundance. Our results have implications for the conservation and monitoring of assemblages patchily distributed at small spatial scales. The major role of distance from river influences on fish assemblages rather than benthic cover and topographic complexity suggest that managing land-based activities should be a conservation priority toward reef restoration. |
id |
UFSP_199cba47672446e3a94eea19314c80ad |
---|---|
oai_identifier_str |
oai:repositorio.unifesp.br:11600/56645 |
network_acronym_str |
UFSP |
network_name_str |
Repositório Institucional da UNIFESP |
repository_id_str |
3465 |
spelling |
Neves, Leonardo M.Teixeira-Neves, Tatiana P.Pereira-Filho, Guilherme Henrique [UNIFESP]Araujo, Francisco G.2020-07-31T12:47:11Z2020-07-31T12:47:11Z2016Plos One. San Francisco, v. 11, n. 12, p. -, 2016.1932-6203https://repositorio.unifesp.br/handle/11600/56645http://dx.doi.org/10.1371/journal.pone.0166679WOS000389482700033.pdf10.1371/journal.pone.0166679WOS:000389482700033The conservation and management of site-attached assemblages of coastal reefs are particularly challenging because of the tremendous environmental variation that exists at small spatial scales. In this sense, understanding the primary sources of variation in spatial patterns of the biota is fundamental for designing effective conservation policies. We investigated spatial variation in fish assemblages around the windward and leeward sides of coastal islands situated across a gradient of riverine influence (13 km in length). Specifically, relationships between rocky reef fish assemblages and benthic, topographic and physical predictors were assessed. We hypothesized that river induced disturbances may overcome local habitat features in modeling spatial patterns of fish distribution. Fish assemblages varied primarily due to the strong directional gradient of riverine influence (22.6% of the estimated components of variation), followed by topographic complexity (15%), wave exposure (9.9%), and benthic cover (8%). The trophic structure of fish assemblages changed from having a high abundance of invertebrate feeders in macroalgae-dominated reefs close to river mouths to a high proportion of herbivores, planktivores and invertebrate feeder species in reefs with large boulders covered by epilithic algal matrices, as the distance from rivers increased. This gradient led to an increase of 4.5-fold in fish richness and fish trophic group diversity, 11-fold in fish biomass and 10-fold in fish abundance. Our results have implications for the conservation and monitoring of assemblages patchily distributed at small spatial scales. The major role of distance from river influences on fish assemblages rather than benthic cover and topographic complexity suggest that managing land-based activities should be a conservation priority toward reef restoration.Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Fed Rural Rio de Janeiro, Dept Biol Anim, Lab Ecol Peixes, Campus Seropedica, Seropedica, RJ, BrazilUniv Fed Rural Rio de Janeiro, Dept Ciencias Meio Ambiente, Campus Tres Rios, Seropedica, RJ, BrazilUniv Fed Sao Paulo, Inst Mar, Lab Ecol & Conservacao Marinha, Campus Baixada Santista, Santos, SP, BrazilLaboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Santos, SP, BrazilWeb of Science-engPublic Library SciencePlos OneThe Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influencesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSan Francisco1112info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000389482700033.pdfapplication/pdf2032406${dspace.ui.url}/bitstream/11600/56645/1/WOS000389482700033.pdf21a0c3ed7867a29dec0d3b7dc6810ad8MD51open accessTEXTWOS000389482700033.pdf.txtWOS000389482700033.pdf.txtExtracted texttext/plain80386${dspace.ui.url}/bitstream/11600/56645/5/WOS000389482700033.pdf.txtbce50b8a90718fb779c7503b37e6456bMD55open accessTHUMBNAILWOS000389482700033.pdf.jpgWOS000389482700033.pdf.jpgIM Thumbnailimage/jpeg7570${dspace.ui.url}/bitstream/11600/56645/7/WOS000389482700033.pdf.jpgade4168baaae7802edf999d59d1be2c0MD57open access11600/566452023-06-05 19:39:14.317open accessoai:repositorio.unifesp.br:11600/56645Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:39:14Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
title |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
spellingShingle |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences Neves, Leonardo M. |
title_short |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
title_full |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
title_fullStr |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
title_full_unstemmed |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
title_sort |
The Farther the Better: Effects of Multiple Environmental Variables on Reef Fish Assemblages along a Distance Gradient from River Influences |
author |
Neves, Leonardo M. |
author_facet |
Neves, Leonardo M. Teixeira-Neves, Tatiana P. Pereira-Filho, Guilherme Henrique [UNIFESP] Araujo, Francisco G. |
author_role |
author |
author2 |
Teixeira-Neves, Tatiana P. Pereira-Filho, Guilherme Henrique [UNIFESP] Araujo, Francisco G. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Neves, Leonardo M. Teixeira-Neves, Tatiana P. Pereira-Filho, Guilherme Henrique [UNIFESP] Araujo, Francisco G. |
description |
The conservation and management of site-attached assemblages of coastal reefs are particularly challenging because of the tremendous environmental variation that exists at small spatial scales. In this sense, understanding the primary sources of variation in spatial patterns of the biota is fundamental for designing effective conservation policies. We investigated spatial variation in fish assemblages around the windward and leeward sides of coastal islands situated across a gradient of riverine influence (13 km in length). Specifically, relationships between rocky reef fish assemblages and benthic, topographic and physical predictors were assessed. We hypothesized that river induced disturbances may overcome local habitat features in modeling spatial patterns of fish distribution. Fish assemblages varied primarily due to the strong directional gradient of riverine influence (22.6% of the estimated components of variation), followed by topographic complexity (15%), wave exposure (9.9%), and benthic cover (8%). The trophic structure of fish assemblages changed from having a high abundance of invertebrate feeders in macroalgae-dominated reefs close to river mouths to a high proportion of herbivores, planktivores and invertebrate feeder species in reefs with large boulders covered by epilithic algal matrices, as the distance from rivers increased. This gradient led to an increase of 4.5-fold in fish richness and fish trophic group diversity, 11-fold in fish biomass and 10-fold in fish abundance. Our results have implications for the conservation and monitoring of assemblages patchily distributed at small spatial scales. The major role of distance from river influences on fish assemblages rather than benthic cover and topographic complexity suggest that managing land-based activities should be a conservation priority toward reef restoration. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2020-07-31T12:47:11Z |
dc.date.available.fl_str_mv |
2020-07-31T12:47:11Z |
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.citation.fl_str_mv |
Plos One. San Francisco, v. 11, n. 12, p. -, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.unifesp.br/handle/11600/56645 http://dx.doi.org/10.1371/journal.pone.0166679 |
dc.identifier.issn.none.fl_str_mv |
1932-6203 |
dc.identifier.file.none.fl_str_mv |
WOS000389482700033.pdf |
dc.identifier.doi.none.fl_str_mv |
10.1371/journal.pone.0166679 |
dc.identifier.wos.none.fl_str_mv |
WOS:000389482700033 |
identifier_str_mv |
Plos One. San Francisco, v. 11, n. 12, p. -, 2016. 1932-6203 WOS000389482700033.pdf 10.1371/journal.pone.0166679 WOS:000389482700033 |
url |
https://repositorio.unifesp.br/handle/11600/56645 http://dx.doi.org/10.1371/journal.pone.0166679 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Plos One |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
- |
dc.coverage.none.fl_str_mv |
San Francisco |
dc.publisher.none.fl_str_mv |
Public Library Science |
publisher.none.fl_str_mv |
Public Library Science |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
bitstream.url.fl_str_mv |
${dspace.ui.url}/bitstream/11600/56645/1/WOS000389482700033.pdf ${dspace.ui.url}/bitstream/11600/56645/5/WOS000389482700033.pdf.txt ${dspace.ui.url}/bitstream/11600/56645/7/WOS000389482700033.pdf.jpg |
bitstream.checksum.fl_str_mv |
21a0c3ed7867a29dec0d3b7dc6810ad8 bce50b8a90718fb779c7503b37e6456b ade4168baaae7802edf999d59d1be2c0 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
|
_version_ |
1802764205807370240 |