Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/49086 |
Resumo: | Based on new information, the current conservation status of the freshwater pearl mussel Margaritifera margaritifera (Linnaeus, 1758) in Portugal is revised. Between 2010 and 2013 surveys were conducted in eight different rivers to assess distribution, abundance, size-frequency and preferential habitat of this species.Rivers Neiva, Cávado and Terva presented very low abundances (in the Cávado no specimens were found) and showed acute signs of ageing, calling into question the future survival of these populations. Although abundances were low in Rivers Bec¸ a, Paiva and Mente, juveniles were present and populations may improve their conservation status in the future, if appropriate management measures are applied. Rivers Rabac¸ al and Tuela presented the highest abundances of adults and juveniles and these two rivers have the highest potential for the conservation of freshwater pearl mussels in Portugal. However, these two populations have suffered severe declines in several stretches due to the construction of dams in recent years. Given that the Portuguese pearl mussel populations are at the southern range of the species distribution, their conservation should be a priority. This current description of the conservation status of M. margaritifera in Portugal can be used as a reference, and guide future research and management initiatives to better conserve this species. |
id |
RCAP_e8742d704fd95a3a7d78a92870c5ea5e |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/49086 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in PortugalConservationMargaritifera margaritiferaPearl musselPortugalRiverThreatsScience & TechnologyBased on new information, the current conservation status of the freshwater pearl mussel Margaritifera margaritifera (Linnaeus, 1758) in Portugal is revised. Between 2010 and 2013 surveys were conducted in eight different rivers to assess distribution, abundance, size-frequency and preferential habitat of this species.Rivers Neiva, Cávado and Terva presented very low abundances (in the Cávado no specimens were found) and showed acute signs of ageing, calling into question the future survival of these populations. Although abundances were low in Rivers Bec¸ a, Paiva and Mente, juveniles were present and populations may improve their conservation status in the future, if appropriate management measures are applied. Rivers Rabac¸ al and Tuela presented the highest abundances of adults and juveniles and these two rivers have the highest potential for the conservation of freshwater pearl mussels in Portugal. However, these two populations have suffered severe declines in several stretches due to the construction of dams in recent years. Given that the Portuguese pearl mussel populations are at the southern range of the species distribution, their conservation should be a priority. This current description of the conservation status of M. margaritifera in Portugal can be used as a reference, and guide future research and management initiatives to better conserve this species.Financial support was provided by Portuguese Foundation for Science and Technology (FCT) and COMPETE funds—projects ECO-IAS (Contract: PTDC/AAC-AMB/116685/2010) and CONBI (Contract: PTDC/AAC-AMB/117688/2010). This study was also partially supported by the European Regional Development Fund (ERDF) through the COMPETE, under the project “PEstC/MAR/LA0015/2011”.info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoSousa, Ronaldo GomesAmorim, ÂngelaFroufe, ElsaVarandas, SimoneTeixeira, AmílcarLima, Manuel Lopes20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/49086eng0075-95111873-585110.1016/j.limno.2014.07.004www.elsevier.com/locate/limnoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:56:43Zoai:repositorium.sdum.uminho.pt:1822/49086Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:46:21.122732Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
title |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
spellingShingle |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal Sousa, Ronaldo Gomes Conservation Margaritifera margaritifera Pearl mussel Portugal River Threats Science & Technology |
title_short |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
title_full |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
title_fullStr |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
title_full_unstemmed |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
title_sort |
Conservation status of the freshwater pearl mussel Margaritifera margaritifera in Portugal |
author |
Sousa, Ronaldo Gomes |
author_facet |
Sousa, Ronaldo Gomes Amorim, Ângela Froufe, Elsa Varandas, Simone Teixeira, Amílcar Lima, Manuel Lopes |
author_role |
author |
author2 |
Amorim, Ângela Froufe, Elsa Varandas, Simone Teixeira, Amílcar Lima, Manuel Lopes |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Sousa, Ronaldo Gomes Amorim, Ângela Froufe, Elsa Varandas, Simone Teixeira, Amílcar Lima, Manuel Lopes |
dc.subject.por.fl_str_mv |
Conservation Margaritifera margaritifera Pearl mussel Portugal River Threats Science & Technology |
topic |
Conservation Margaritifera margaritifera Pearl mussel Portugal River Threats Science & Technology |
description |
Based on new information, the current conservation status of the freshwater pearl mussel Margaritifera margaritifera (Linnaeus, 1758) in Portugal is revised. Between 2010 and 2013 surveys were conducted in eight different rivers to assess distribution, abundance, size-frequency and preferential habitat of this species.Rivers Neiva, Cávado and Terva presented very low abundances (in the Cávado no specimens were found) and showed acute signs of ageing, calling into question the future survival of these populations. Although abundances were low in Rivers Bec¸ a, Paiva and Mente, juveniles were present and populations may improve their conservation status in the future, if appropriate management measures are applied. Rivers Rabac¸ al and Tuela presented the highest abundances of adults and juveniles and these two rivers have the highest potential for the conservation of freshwater pearl mussels in Portugal. However, these two populations have suffered severe declines in several stretches due to the construction of dams in recent years. Given that the Portuguese pearl mussel populations are at the southern range of the species distribution, their conservation should be a priority. This current description of the conservation status of M. margaritifera in Portugal can be used as a reference, and guide future research and management initiatives to better conserve this species. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
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://hdl.handle.net/1822/49086 |
url |
http://hdl.handle.net/1822/49086 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0075-9511 1873-5851 10.1016/j.limno.2014.07.004 www.elsevier.com/locate/limno |
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.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799132218739654657 |