Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UEPB |
Texto Completo: | http://tede.bc.uepb.edu.br/jspui/handle/tede/4323 |
Resumo: | The study of functional diversity is important to indicate aspects related to the role of biodiversity in ecosystem functioning and reveal changes occurring in the community, in face of increasing threats to global biodiversity and the need for species protection and conservation efforts. The objective of this work is to analyze the functional diversity of fish assemblages in multiple habitats of a tropical estuary. Six samplings were carried out in Mamanguape River estuary (Paraíba, Northeastern Brazil) between June 2015 and January 2016. Five habitats were selected according to the distinct characteristics of each environment and the salinity gradient, represented by sandy beach (SB), mudflat (MU), seagrass (SE), mangrove fringe (MF) and riparian vegetation (RV). In each habitat, three points were established and for each point three hauls. Fish were captured using a beach seine. In each haul, the environmental variables of salinity, transparency, depth, temperature, pH, water for chlorophyll a and sediment (fine sand and coarse sand) samples were also collected. For functional approach, 7 functional traits related to vertical habitat, feeding and locomotion (morphology) and trophic guild (diet) were used. The functional indices of functional richness (FRic), functional evenness (FEve), functional divergence (FDiv) and functional redundancy (FRed) and the Community-Weighted Mean (CWM) were calculated. The RLQ analysis combined with the fourth-corner method were performed in order to evaluate the relationships between the functional traits of the species and the environmental variables in the habitats. In the multiple estuarine habitats, a total of 27,036 fish belonging to 119 species were collected. The highest individual abundance and species richness were recorded in MU and SE, followed by MF, SB and RV. Significant differences were recorded between habitats only for FRic and FEve, with highest values of FRic in MU and SE, FEve in BE, BFM and RV, FDiv in BE and SE and FRed in BE, MU and SE. In general, functional diversity in the multiple habitats showed a pattern of low FRic, intermediate FEve and FRed, and high FDiv. The main functional traits predominant by CWM were the same in all habitats, being related to the zoobenthivorous guild, compressiform body, pectoral fin size, forked caudal fin, mouth opening size and caudal peduncle compression index, except for the zooplanktivorous guild that only dominated in SB, MU and SE. The RLQ highlighted two distinct groups based on the spatial separation: the first group was formed by unstructured habitats (SB and MU) with water column species (pelagic), zooplanktivorous habit, compressiform body, forked fin and index of compression of the caudal peduncle indicating the importance of of a type of feeding and swimming in these shallow and open environments, mainly associated with salinity, temperature and transparency; the second group was composed of the structured habitats (SE, MF and RV) with more bottom species (benthic and demersal), with different feeding habits (zoobenthivorous, insectivorous and piscivorous), and body shapes to explore more structured environments, being related to other environmental variables, such as fine sand. The fourth-corner showed some significant correlations specific to each habitat. In this study, the functional diversity of the ichthyofauna influences the multiple habitats associated with estuarine gradient. The habitats characteristics are essential to guarantee potential nursery areas, estuarine diversity and ecological integrity, contributing to the identification, management and conservation of estuarine environments. |
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Pessanha, André Luiz Machado068.529.707-10http://lattes.cnpq.br/5517316070440241Terra, Bianca de Freitas096.343.177-31http://lattes.cnpq.br/5842231432141723Frédou, Flávia Lucena836.841.074-68http://lattes.cnpq.br/4779271407117528700.362.324-24http://lattes.cnpq.br/1760782830079471Maciel, Emanuelle Bezerra2022-04-13T14:21:49Z2999-12-312022-02-23MACIEL, Emanuelle Bezerra. Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical. 2022. 74f. Dissertação (Programa de Pós-Graduação em Ecologia e Conservação - PPGEC) - Universidade Estadual da Paraíba, Campina Grande, PB, 2022.http://tede.bc.uepb.edu.br/jspui/handle/tede/4323The study of functional diversity is important to indicate aspects related to the role of biodiversity in ecosystem functioning and reveal changes occurring in the community, in face of increasing threats to global biodiversity and the need for species protection and conservation efforts. The objective of this work is to analyze the functional diversity of fish assemblages in multiple habitats of a tropical estuary. Six samplings were carried out in Mamanguape River estuary (Paraíba, Northeastern Brazil) between June 2015 and January 2016. Five habitats were selected according to the distinct characteristics of each environment and the salinity gradient, represented by sandy beach (SB), mudflat (MU), seagrass (SE), mangrove fringe (MF) and riparian vegetation (RV). In each habitat, three points were established and for each point three hauls. Fish were captured using a beach seine. In each haul, the environmental variables of salinity, transparency, depth, temperature, pH, water for chlorophyll a and sediment (fine sand and coarse sand) samples were also collected. For functional approach, 7 functional traits related to vertical habitat, feeding and locomotion (morphology) and trophic guild (diet) were used. The functional indices of functional richness (FRic), functional evenness (FEve), functional divergence (FDiv) and functional redundancy (FRed) and the Community-Weighted Mean (CWM) were calculated. The RLQ analysis combined with the fourth-corner method were performed in order to evaluate the relationships between the functional traits of the species and the environmental variables in the habitats. In the multiple estuarine habitats, a total of 27,036 fish belonging to 119 species were collected. The highest individual abundance and species richness were recorded in MU and SE, followed by MF, SB and RV. Significant differences were recorded between habitats only for FRic and FEve, with highest values of FRic in MU and SE, FEve in BE, BFM and RV, FDiv in BE and SE and FRed in BE, MU and SE. In general, functional diversity in the multiple habitats showed a pattern of low FRic, intermediate FEve and FRed, and high FDiv. The main functional traits predominant by CWM were the same in all habitats, being related to the zoobenthivorous guild, compressiform body, pectoral fin size, forked caudal fin, mouth opening size and caudal peduncle compression index, except for the zooplanktivorous guild that only dominated in SB, MU and SE. The RLQ highlighted two distinct groups based on the spatial separation: the first group was formed by unstructured habitats (SB and MU) with water column species (pelagic), zooplanktivorous habit, compressiform body, forked fin and index of compression of the caudal peduncle indicating the importance of of a type of feeding and swimming in these shallow and open environments, mainly associated with salinity, temperature and transparency; the second group was composed of the structured habitats (SE, MF and RV) with more bottom species (benthic and demersal), with different feeding habits (zoobenthivorous, insectivorous and piscivorous), and body shapes to explore more structured environments, being related to other environmental variables, such as fine sand. The fourth-corner showed some significant correlations specific to each habitat. In this study, the functional diversity of the ichthyofauna influences the multiple habitats associated with estuarine gradient. The habitats characteristics are essential to guarantee potential nursery areas, estuarine diversity and ecological integrity, contributing to the identification, management and conservation of estuarine environments.O estudo da diversidade funcional é importante para indicar sobre aspectos relacionados ao papel da biodiversidade no funcionamento do ecossistema e revelar mudanças ocorrentes na comunidade, diante do aumento das ameaças a biodiversidade global e a necessidade de proteção e esforços de conservação às espécies. O objetivo deste trabalho é analisar a diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical. Seis amostragens foram realizadas no estuário do rio Mamanguape (Paraíba, Nordeste do Brasil) entre junho de 2015 e janeiro de 2016. Foram selecionados cinco habitats de acordo com as características distintas de cada ambiente e o gradiente de salinidade, representados por praia arenosa (PA), planície de maré lamosa (PML), banco de fanerógamas marinhas (BFM), franja do manguezal (FM) e vegetação marginal (VM). Em cada habitat, foram estabelecidos três pontos e para cada ponto três arrastos. Os peixes foram capturados utilizando uma rede de picaré. Em cada arrasto também foram coletadas as variáveis ambientais de salinidade, transparência, profundidade, temperatura, pH, amostras de água para a clorofila a e de sedimento (areia fina e areia grossa). Para a abordagem funcional foram utilizados 7 traços funcionais relacionados ao habitat vertical, aquisição de alimento e locomoção (morfologia) e a guilda trófica (dieta). Foram calculados os índices funcionais de riqueza funcional (FRic), uniformidade funcional (FEve), divergência funcional (FDiv) e redundância funcional (FRed) e a média ponderada dos traços da comunidade (CWM). A análise RLQ combinada com o método quarto-canto foi realizada a fim de avaliar as relações entre os traços funcionais das espécies e as variáveis ambientais nos habitats. Nos múltiplos habitats estuarinos foram coletados um total de 27.036 peixes pertencentes a 119 espécies. As maiores abundância de indivíduos e riqueza de espécies foram registradas em PML e BFM, seguida por FM, PA e VM. Foram registradas diferenças significativas entre os habitats somente para FRic e FEve, com maiores valores de FRic em PML e BFM, de FEve em PA, BFM e VM, de FDiv em PA e BFM e de FRed em PA, PML e BFM. No geral, a diversidade funcional nos múltiplos habitats apresentou um padrão de baixa FRic, intermediárias FEve e FRed, e alta FDiv. Os principais traços funcionais predominantes pelo CWM foram os mesmos em todos os habitats, sendo relacionados a guilda zoobentívora, corpo compressiforme, tamanho da nadadeira peitoral, nadadeira caudal furcada, tamanho de abertura da boca e índice de compressão do pedúnculo caudal, exceto a guilda zooplanctívora que se destacou somente em PA, PML e BFM. A RLQ evidenciou dois grupos distintos a partir da separação espacial: o primeiro grupo foi formado pelos habitats não estruturados (PA e PML) com espécies de coluna (pelágicas), hábito zooplanctívoro, corpo compressiforme, nadadeira furcada e índice de compressão do pedúnculo caudal indicando a importância de um tipo de alimentação e da natação nesses ambientes rasos e abertos, associado principalmente a salinidade, temperatura e transparência; o segundo grupo foi composto pelos habitats estruturados (BFM, FM e VM), apresentando espécies mais de fundo (demersais e bentônicas), com diferentes hábitos alimentares (zoobentívoro, insetívoro e piscívoro) e formatos de corpo para explorar os ambientes mais estruturados, estando relacionado a outras variáveis ambientais, como a areia fina. O quarto-canto evidenciou algumas correlações significativas que foram específicas para cada habitat. Nesse estudo, a diversidade funcional da ictiofauna tem influência sobre os múltiplos habitats associados ao gradiente estuarino. Essas características dos habitats são importantes para garantir potenciais áreas de berçário, diversidade estuarina e integridade ecológica, contribuindo para a identificação, gestão e conservação dos ecossistemas estuarinos.Submitted by Concluinte Mestrado (concluinte.mestrado@setor.uepb.edu.br) on 2022-04-12T19:19:28Z No. of bitstreams: 3 Emanuelle Bezerra Maciel - Dissertação.pdf: 2442331 bytes, checksum: 4fe66e4e67d442e29b87b7da95bfe80f (MD5) Emanuelle Bezerra Maciel - Folha de aprovação.pdf: 185190 bytes, checksum: 3e63d29cffe2a9eddb197b0ca1de84cd (MD5) Emanuelle Bezerra Maciel - Termos BDTD.docx.pdf: 206167 bytes, checksum: d5f5c3e8d60423d1cec2cb74d97f3793 (MD5)Approved for entry into archive by Jean Medeiros (jeanletras@uepb.edu.br) on 2022-04-13T12:43:51Z (GMT) No. of bitstreams: 3 Emanuelle Bezerra Maciel - Dissertação.pdf: 2442331 bytes, checksum: 4fe66e4e67d442e29b87b7da95bfe80f (MD5) Emanuelle Bezerra Maciel - Folha de aprovação.pdf: 185190 bytes, checksum: 3e63d29cffe2a9eddb197b0ca1de84cd (MD5) Emanuelle Bezerra Maciel - Termos BDTD.docx.pdf: 206167 bytes, checksum: d5f5c3e8d60423d1cec2cb74d97f3793 (MD5)Made available in DSpace on 2022-04-13T14:21:49Z (GMT). No. of bitstreams: 3 Emanuelle Bezerra Maciel - Dissertação.pdf: 2442331 bytes, checksum: 4fe66e4e67d442e29b87b7da95bfe80f (MD5) Emanuelle Bezerra Maciel - Folha de aprovação.pdf: 185190 bytes, checksum: 3e63d29cffe2a9eddb197b0ca1de84cd (MD5) Emanuelle Bezerra Maciel - Termos BDTD.docx.pdf: 206167 bytes, checksum: d5f5c3e8d60423d1cec2cb74d97f3793 (MD5) Previous issue date: 2022-02-23Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Estadual da ParaíbaPrograma de Pós-Graduação em Ecologia e Conservação - PPGECUEPBBrasilPró-Reitoria de Pós-Graduação e Pesquisa - PRPGPHabitats estuarinosDiversidade estuarinaAbordagem funcionalTraços funcionaisIctiofaunaEstuarine habitatsFunctional traitsFunctional approachEstuarine diversityIchthyofaunaCIENCIAS BIOLOGICAS::ECOLOGIADiversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropicalFunctional diversity of fish assemblages from multiple habitats in a tropical estuaryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis31422970496367689026006006005248714503811102783263499605295365002info:eu-repo/semantics/embargoedAccessreponame:Biblioteca Digital de Teses e Dissertações da UEPBinstname:Universidade Estadual da Paraíba (UEPB)instacron:UEPBORIGINALPDF - Emanuelle Bezerra MacielPDF - Emanuelle Bezerra Macielapplication/pdf2442331http://tede.bc.uepb.edu.br/jspui/bitstream/tede/4323/2/PDF+-+Emanuelle+Bezerra+Maciel4fe66e4e67d442e29b87b7da95bfe80fMD52PDF - Termos de Depósito BDTDPDF - Termos de Depósito BDTDapplication/pdf206167http://tede.bc.uepb.edu.br/jspui/bitstream/tede/4323/4/PDF+-+Termos+de+Dep%C3%B3sito+BDTDd5f5c3e8d60423d1cec2cb74d97f3793MD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81960http://tede.bc.uepb.edu.br/jspui/bitstream/tede/4323/1/license.txt6052ae61e77222b2086e666b7ae213ceMD51tede/43232022-04-13 11:22:23.405oai:tede.bc.uepb.edu.br:tede/4323TElDRU7Dh0EgREUgRElTVFJJQlVJw4fDg08gTsODTy1FWENMVVNJVkEKCkNvbSBhIGFwcmVzZW50YcOnw6NvIGRlc3RhIGxpY2Vuw6dhLCB2b2PDqiAobyBhdXRvciAoZXMpIG91IG8gdGl0dWxhciBkb3MgZGlyZWl0b3MgZGUgYXV0b3IpIGNvbmNlZGUgw6AgVW5pdmVyc2lkYWRlIApFc3RhZHVhbCBkYSBQYXJhw61iYSBvIGRpcmVpdG8gbsOjby1leGNsdXNpdm8gZGUgcmVwcm9kdXppciwgIHRyYWR1emlyIChjb25mb3JtZSBkZWZpbmlkbyBhYmFpeG8pLCBlL291IApkaXN0cmlidWlyIGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyAoaW5jbHVpbmRvIG8gcmVzdW1vKSBwb3IgdG9kbyBvIG11bmRvIG5vIGZvcm1hdG8gaW1wcmVzc28gZSBlbGV0csO0bmljbyBlIAplbSBxdWFscXVlciBtZWlvLCBpbmNsdWluZG8gb3MgZm9ybWF0b3Mgw6F1ZGlvIG91IHbDrWRlby4KClZvY8OqIGNvbmNvcmRhIHF1ZSBhIFVFUEIgcG9kZSwgc2VtIGFsdGVyYXIgbyBjb250ZcO6ZG8sIHRyYW5zcG9yIGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyAKcGFyYSBxdWFscXVlciBtZWlvIG91IGZvcm1hdG8gcGFyYSBmaW5zIGRlIHByZXNlcnZhw6fDo28uCgpWb2PDqiB0YW1iw6ltIGNvbmNvcmRhIHF1ZSBhIFVFUEIgcG9kZSBtYW50ZXIgbWFpcyBkZSB1bWEgY8OzcGlhIGRhIHN1YSB0ZXNlIG91IApkaXNzZXJ0YcOnw6NvIHBhcmEgZmlucyBkZSBzZWd1cmFuw6dhLCBiYWNrdXAgZSBwcmVzZXJ2YcOnw6NvLgoKVm9jw6ogZGVjbGFyYSBxdWUgYSBzdWEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIMOpIG9yaWdpbmFsIGUgcXVlIHZvY8OqIHRlbSBvIHBvZGVyIGRlIGNvbmNlZGVyIG9zIGRpcmVpdG9zIGNvbnRpZG9zIApuZXN0YSBsaWNlbsOnYS4gVm9jw6ogdGFtYsOpbSBkZWNsYXJhIHF1ZSBvIGRlcMOzc2l0byBkYSBzdWEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIG7Do28sIHF1ZSBzZWphIGRlIHNldSAKY29uaGVjaW1lbnRvLCBpbmZyaW5nZSBkaXJlaXRvcyBhdXRvcmFpcyBkZSBuaW5ndcOpbS4KCkNhc28gYSBzdWEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIGNvbnRlbmhhIG1hdGVyaWFsIHF1ZSB2b2PDqiBuw6NvIHBvc3N1aSBhIHRpdHVsYXJpZGFkZSBkb3MgZGlyZWl0b3MgYXV0b3JhaXMsIHZvY8OqIApkZWNsYXJhIHF1ZSBvYnRldmUgYSBwZXJtaXNzw6NvIGlycmVzdHJpdGEgZG8gZGV0ZW50b3IgZG9zIGRpcmVpdG9zIGF1dG9yYWlzIHBhcmEgY29uY2VkZXIgw6AgVUVQQiAKb3MgZGlyZWl0b3MgYXByZXNlbnRhZG9zIG5lc3RhIGxpY2Vuw6dhLCBlIHF1ZSBlc3NlIG1hdGVyaWFsIGRlIHByb3ByaWVkYWRlIGRlIHRlcmNlaXJvcyBlc3TDoSBjbGFyYW1lbnRlIAppZGVudGlmaWNhZG8gZSByZWNvbmhlY2lkbyBubyB0ZXh0byBvdSBubyBjb250ZcO6ZG8gZGEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIG9yYSBkZXBvc2l0YWRhLgoKQ0FTTyBBIFRFU0UgT1UgRElTU0VSVEHDh8ODTyBPUkEgREVQT1NJVEFEQSBURU5IQSBTSURPIFJFU1VMVEFETyBERSBVTSBQQVRST0PDjU5JTyBPVSAKQVBPSU8gREUgVU1BIEFHw4pOQ0lBIERFIEZPTUVOVE8gT1UgT1VUUk8gT1JHQU5JU01PIFFVRSBOw4NPIFNFSkEgQSBVRVBCLCAKVk9Dw4ogREVDTEFSQSBRVUUgUkVTUEVJVE9VIFRPRE9TIEUgUVVBSVNRVUVSIERJUkVJVE9TIERFIFJFVklTw4NPIENPTU8gVEFNQsOJTSBBUyAKREVNQUlTIE9CUklHQcOHw5VFUyBFWElHSURBUyBQT1IgQ09OVFJBVE8gT1UgQUNPUkRPLgoKQSBVRVBCIHNlIGNvbXByb21ldGUgYSBpZGVudGlmaWNhciBjbGFyYW1lbnRlIG8gc2V1IG5vbWUgKHMpIG91IG8ocykgbm9tZShzKSBkbyhzKSAKZGV0ZW50b3IoZXMpIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBkYSB0ZXNlIG91IGRpc3NlcnRhw6fDo28sIGUgbsOjbyBmYXLDoSBxdWFscXVlciBhbHRlcmHDp8OjbywgYWzDqW0gZGFxdWVsYXMgCmNvbmNlZGlkYXMgcG9yIGVzdGEgbGljZW7Dp2EuCg==Biblioteca Digital de Teses e Dissertaçõeshttp://tede.bc.uepb.edu.br/jspui/PUBhttp://tede.bc.uepb.edu.br/oai/requestbc@uepb.edu.br||opendoar:2022-04-13T14:22:23Biblioteca Digital de Teses e Dissertações da UEPB - Universidade Estadual da Paraíba (UEPB)false |
dc.title.por.fl_str_mv |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
dc.title.alternative.eng.fl_str_mv |
Functional diversity of fish assemblages from multiple habitats in a tropical estuary |
title |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
spellingShingle |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical Maciel, Emanuelle Bezerra Habitats estuarinos Diversidade estuarina Abordagem funcional Traços funcionais Ictiofauna Estuarine habitats Functional traits Functional approach Estuarine diversity Ichthyofauna CIENCIAS BIOLOGICAS::ECOLOGIA |
title_short |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
title_full |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
title_fullStr |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
title_full_unstemmed |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
title_sort |
Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical |
author |
Maciel, Emanuelle Bezerra |
author_facet |
Maciel, Emanuelle Bezerra |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Pessanha, André Luiz Machado |
dc.contributor.advisor1ID.fl_str_mv |
068.529.707-10 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5517316070440241 |
dc.contributor.referee1.fl_str_mv |
Terra, Bianca de Freitas |
dc.contributor.referee1ID.fl_str_mv |
096.343.177-31 |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/5842231432141723 |
dc.contributor.referee2.fl_str_mv |
Frédou, Flávia Lucena |
dc.contributor.referee2ID.fl_str_mv |
836.841.074-68 |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4779271407117528 |
dc.contributor.authorID.fl_str_mv |
700.362.324-24 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1760782830079471 |
dc.contributor.author.fl_str_mv |
Maciel, Emanuelle Bezerra |
contributor_str_mv |
Pessanha, André Luiz Machado Terra, Bianca de Freitas Frédou, Flávia Lucena |
dc.subject.por.fl_str_mv |
Habitats estuarinos Diversidade estuarina Abordagem funcional Traços funcionais Ictiofauna |
topic |
Habitats estuarinos Diversidade estuarina Abordagem funcional Traços funcionais Ictiofauna Estuarine habitats Functional traits Functional approach Estuarine diversity Ichthyofauna CIENCIAS BIOLOGICAS::ECOLOGIA |
dc.subject.eng.fl_str_mv |
Estuarine habitats Functional traits Functional approach Estuarine diversity Ichthyofauna |
dc.subject.cnpq.fl_str_mv |
CIENCIAS BIOLOGICAS::ECOLOGIA |
description |
The study of functional diversity is important to indicate aspects related to the role of biodiversity in ecosystem functioning and reveal changes occurring in the community, in face of increasing threats to global biodiversity and the need for species protection and conservation efforts. The objective of this work is to analyze the functional diversity of fish assemblages in multiple habitats of a tropical estuary. Six samplings were carried out in Mamanguape River estuary (Paraíba, Northeastern Brazil) between June 2015 and January 2016. Five habitats were selected according to the distinct characteristics of each environment and the salinity gradient, represented by sandy beach (SB), mudflat (MU), seagrass (SE), mangrove fringe (MF) and riparian vegetation (RV). In each habitat, three points were established and for each point three hauls. Fish were captured using a beach seine. In each haul, the environmental variables of salinity, transparency, depth, temperature, pH, water for chlorophyll a and sediment (fine sand and coarse sand) samples were also collected. For functional approach, 7 functional traits related to vertical habitat, feeding and locomotion (morphology) and trophic guild (diet) were used. The functional indices of functional richness (FRic), functional evenness (FEve), functional divergence (FDiv) and functional redundancy (FRed) and the Community-Weighted Mean (CWM) were calculated. The RLQ analysis combined with the fourth-corner method were performed in order to evaluate the relationships between the functional traits of the species and the environmental variables in the habitats. In the multiple estuarine habitats, a total of 27,036 fish belonging to 119 species were collected. The highest individual abundance and species richness were recorded in MU and SE, followed by MF, SB and RV. Significant differences were recorded between habitats only for FRic and FEve, with highest values of FRic in MU and SE, FEve in BE, BFM and RV, FDiv in BE and SE and FRed in BE, MU and SE. In general, functional diversity in the multiple habitats showed a pattern of low FRic, intermediate FEve and FRed, and high FDiv. The main functional traits predominant by CWM were the same in all habitats, being related to the zoobenthivorous guild, compressiform body, pectoral fin size, forked caudal fin, mouth opening size and caudal peduncle compression index, except for the zooplanktivorous guild that only dominated in SB, MU and SE. The RLQ highlighted two distinct groups based on the spatial separation: the first group was formed by unstructured habitats (SB and MU) with water column species (pelagic), zooplanktivorous habit, compressiform body, forked fin and index of compression of the caudal peduncle indicating the importance of of a type of feeding and swimming in these shallow and open environments, mainly associated with salinity, temperature and transparency; the second group was composed of the structured habitats (SE, MF and RV) with more bottom species (benthic and demersal), with different feeding habits (zoobenthivorous, insectivorous and piscivorous), and body shapes to explore more structured environments, being related to other environmental variables, such as fine sand. The fourth-corner showed some significant correlations specific to each habitat. In this study, the functional diversity of the ichthyofauna influences the multiple habitats associated with estuarine gradient. The habitats characteristics are essential to guarantee potential nursery areas, estuarine diversity and ecological integrity, contributing to the identification, management and conservation of estuarine environments. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-04-13T14:21:49Z |
dc.date.issued.fl_str_mv |
2022-02-23 |
dc.date.available.fl_str_mv |
2999-12-31 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MACIEL, Emanuelle Bezerra. Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical. 2022. 74f. Dissertação (Programa de Pós-Graduação em Ecologia e Conservação - PPGEC) - Universidade Estadual da Paraíba, Campina Grande, PB, 2022. |
dc.identifier.uri.fl_str_mv |
http://tede.bc.uepb.edu.br/jspui/handle/tede/4323 |
identifier_str_mv |
MACIEL, Emanuelle Bezerra. Diversidade funcional das assembleias de peixes em múltiplos habitats de um estuário tropical. 2022. 74f. Dissertação (Programa de Pós-Graduação em Ecologia e Conservação - PPGEC) - Universidade Estadual da Paraíba, Campina Grande, PB, 2022. |
url |
http://tede.bc.uepb.edu.br/jspui/handle/tede/4323 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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3142297049636768902 |
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600 600 600 |
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524871450381110278 |
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3263499605295365002 |
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info:eu-repo/semantics/embargoedAccess |
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embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual da Paraíba |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ecologia e Conservação - PPGEC |
dc.publisher.initials.fl_str_mv |
UEPB |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Pró-Reitoria de Pós-Graduação e Pesquisa - PRPGP |
publisher.none.fl_str_mv |
Universidade Estadual da Paraíba |
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