Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)

Bibliographic Details
Main Author: Heumüller, Joshua Alexander
Publication Date: 2021
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10451/51331
Summary: Tese de mestrado, Ecologia Marinha, Universidade de Lisboa, Faculdade de Ciências, 2021
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spelling Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)Comunidades IctíicasDiversidade FuncionalMangaisSão Tomé e PríncipeSuscetibilidade ecológicaTeses de mestrado - 2021Departamento de Biologia AnimalTese de mestrado, Ecologia Marinha, Universidade de Lisboa, Faculdade de Ciências, 2021Mangroves are valued for their role in climate regulation, countering coastal erosion and providing raw materials. Mangroves have diverse fish communities, and the roots of mangrove trees provide shelter for fish species, especially juveniles. Little is known about Santomean mangroves, with 12 mangrove systems identified, from which four were included in this study. This thesis aims to comprehend how fish diversity varies between mangroves with different characteristics, using Santomean mangroves as case study. The environmental conditions found in the smaller systems were more homogeneous than those of the larger systems. Twenty-two species were sampled, with Malanza showing the highest richness and Praia das Conchas the lowest. The functional diversity results suggest that Malanza is more diverse and has a functionally richer community. This higher diversity is probably due to the heterogeneity of environmental conditions and their temporal stability. Angolares had low diversity, with an even but species poor community. Likely due to the environmental variability that only allows tolerant species to establish. The reduced size and depth of Diogo Nunes is probably stunting its diversity. Nevertheless, the fish community of Diogo Nunes is functionally more diverse than that of the larger Angolares system. Pelagic and marine species preferred larger and deeper mangroves, while benthic and estuarine species were predominant in Diogo Nunes. Species and functional diversity were positively correlated indicating complementarity between them and showing that functional diversity adds information about species-environment interactions. Functional and species evenness were not correlated showcasing the importance of the use of both metrics to acquire a more complete understanding of the communities. Taxonomic and functional diversity were negatively correlated indicating that species from different taxa may perform similar functions. From a management point of view this approach represents an advantage as it can identify which systems are more important for which groups, allowing the prioritizing of systems for conservation and management.Félix, Pedro Miguel Emídio,1977-Brito, Ana Cristina Florindo deRepositório da Universidade de LisboaHeumüller, Joshua Alexander2022-02-16T10:19:22Z202120212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/51331TID:202931110enginfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-17T14:41:28Zoai:repositorio.ulisboa.pt:10451/51331Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T03:22:14.479704Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
title Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
spellingShingle Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
Heumüller, Joshua Alexander
Comunidades Ictíicas
Diversidade Funcional
Mangais
São Tomé e Príncipe
Suscetibilidade ecológica
Teses de mestrado - 2021
Departamento de Biologia Animal
title_short Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
title_full Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
title_fullStr Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
title_full_unstemmed Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
title_sort Fish Diversity in Mangroves of São Tomé Island (Gulf of Guinea)
author Heumüller, Joshua Alexander
author_facet Heumüller, Joshua Alexander
author_role author
dc.contributor.none.fl_str_mv Félix, Pedro Miguel Emídio,1977-
Brito, Ana Cristina Florindo de
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Heumüller, Joshua Alexander
dc.subject.por.fl_str_mv Comunidades Ictíicas
Diversidade Funcional
Mangais
São Tomé e Príncipe
Suscetibilidade ecológica
Teses de mestrado - 2021
Departamento de Biologia Animal
topic Comunidades Ictíicas
Diversidade Funcional
Mangais
São Tomé e Príncipe
Suscetibilidade ecológica
Teses de mestrado - 2021
Departamento de Biologia Animal
description Tese de mestrado, Ecologia Marinha, Universidade de Lisboa, Faculdade de Ciências, 2021
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021-01-01T00:00:00Z
2022-02-16T10:19:22Z
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.uri.fl_str_mv http://hdl.handle.net/10451/51331
TID:202931110
url http://hdl.handle.net/10451/51331
identifier_str_mv TID:202931110
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:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
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reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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