Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10400.8/5092 |
Resumo: | Mass mortality events involving marine taxa are increasing worldwide. The long-spined sea urchin Diadema africanum is considered a keystone herbivore species in the northeastern Atlantic due to its control over the abundance and distribution of algae. After a first registered mass mortality in 2009, another event off the coasts of Madeira archipelago affected this ecologically important species in summer 2018. This study documented the 2018 D. africanum mass mortality event, and the progress of its populations on the southern coast of Madeira island. A citizen science survey was designed targeting marine stakeholders to understand the extent and intensity of the event around the archipelago. Underwater surveys on population density prior, during and after the mass mortality, permitted an evaluation of the severity and magnitude of the event as well as urchin population recovery. A preliminary assessment of causative agents of the mortality was performed. The event was reported in the principal islands of the archipelago reducing the populations up to 90%. However, a fast recovery was registered during the following months, suggesting that the reproductive success was not compromised. Microbiological analyses in symptomatic and asymptomatic individuals, during and after the event, was not conclusive. Nevertheless, the bacteria Aeromonas salmonicida, or the gram-negative bacteria, or the interaction of different types of bacteria may be responsible for the disease outbreak. Further studies are needed to assess the role of pathogens in sea urchin mass mortalities and the compound effects that sea urchins have in local habitats and ecological functioning of coastal marine ecosystems. |
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Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality eventLong-spined sea urchinDiseaseWidespread die-offPopulation densityCitizen sciencePathogen assessmentMadeiraMass mortality events involving marine taxa are increasing worldwide. The long-spined sea urchin Diadema africanum is considered a keystone herbivore species in the northeastern Atlantic due to its control over the abundance and distribution of algae. After a first registered mass mortality in 2009, another event off the coasts of Madeira archipelago affected this ecologically important species in summer 2018. This study documented the 2018 D. africanum mass mortality event, and the progress of its populations on the southern coast of Madeira island. A citizen science survey was designed targeting marine stakeholders to understand the extent and intensity of the event around the archipelago. Underwater surveys on population density prior, during and after the mass mortality, permitted an evaluation of the severity and magnitude of the event as well as urchin population recovery. A preliminary assessment of causative agents of the mortality was performed. The event was reported in the principal islands of the archipelago reducing the populations up to 90%. However, a fast recovery was registered during the following months, suggesting that the reproductive success was not compromised. Microbiological analyses in symptomatic and asymptomatic individuals, during and after the event, was not conclusive. Nevertheless, the bacteria Aeromonas salmonicida, or the gram-negative bacteria, or the interaction of different types of bacteria may be responsible for the disease outbreak. Further studies are needed to assess the role of pathogens in sea urchin mass mortalities and the compound effects that sea urchins have in local habitats and ecological functioning of coastal marine ecosystems.ElsevierIC-OnlineGizzi, FrancescaJiménez, JesúsSchäfer, SusaneCastro, NunoCosta, SóniaLourenço, SílviaJosé, RicardoCanning-Clode, JoãoMonteiro, João2020-08-17T15:14:41Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.8/5092engGizzi, F., Jiménez, J., Schäfer, S., Castro, N., Costa, S., Lourenço, S., José, R., Canning-Clode, J. & Monteiro, J. (2020). Before and after a disease outbreak: Tracking a keystone species recovery from a mass mortality event. Marine Environmental Research. 156. 104905. DOI: 10.1016/j.marenvres.2020.1049050141-113610.1016/j.marenvres.2020.104905metadata only accessinfo: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:RCAAP2024-01-17T15:50:37Zoai:iconline.ipleiria.pt:10400.8/5092Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:48:46.617740Repositório 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 |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
title |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
spellingShingle |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event Gizzi, Francesca Long-spined sea urchin Disease Widespread die-off Population density Citizen science Pathogen assessment Madeira |
title_short |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
title_full |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
title_fullStr |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
title_full_unstemmed |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
title_sort |
Before and after a disease outbreak: tracking a keystone species recovery from a mass mortality event |
author |
Gizzi, Francesca |
author_facet |
Gizzi, Francesca Jiménez, Jesús Schäfer, Susane Castro, Nuno Costa, Sónia Lourenço, Sílvia José, Ricardo Canning-Clode, João Monteiro, João |
author_role |
author |
author2 |
Jiménez, Jesús Schäfer, Susane Castro, Nuno Costa, Sónia Lourenço, Sílvia José, Ricardo Canning-Clode, João Monteiro, João |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
IC-Online |
dc.contributor.author.fl_str_mv |
Gizzi, Francesca Jiménez, Jesús Schäfer, Susane Castro, Nuno Costa, Sónia Lourenço, Sílvia José, Ricardo Canning-Clode, João Monteiro, João |
dc.subject.por.fl_str_mv |
Long-spined sea urchin Disease Widespread die-off Population density Citizen science Pathogen assessment Madeira |
topic |
Long-spined sea urchin Disease Widespread die-off Population density Citizen science Pathogen assessment Madeira |
description |
Mass mortality events involving marine taxa are increasing worldwide. The long-spined sea urchin Diadema africanum is considered a keystone herbivore species in the northeastern Atlantic due to its control over the abundance and distribution of algae. After a first registered mass mortality in 2009, another event off the coasts of Madeira archipelago affected this ecologically important species in summer 2018. This study documented the 2018 D. africanum mass mortality event, and the progress of its populations on the southern coast of Madeira island. A citizen science survey was designed targeting marine stakeholders to understand the extent and intensity of the event around the archipelago. Underwater surveys on population density prior, during and after the mass mortality, permitted an evaluation of the severity and magnitude of the event as well as urchin population recovery. A preliminary assessment of causative agents of the mortality was performed. The event was reported in the principal islands of the archipelago reducing the populations up to 90%. However, a fast recovery was registered during the following months, suggesting that the reproductive success was not compromised. Microbiological analyses in symptomatic and asymptomatic individuals, during and after the event, was not conclusive. Nevertheless, the bacteria Aeromonas salmonicida, or the gram-negative bacteria, or the interaction of different types of bacteria may be responsible for the disease outbreak. Further studies are needed to assess the role of pathogens in sea urchin mass mortalities and the compound effects that sea urchins have in local habitats and ecological functioning of coastal marine ecosystems. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-17T15:14:41Z 2020 2020-01-01T00:00:00Z |
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/10400.8/5092 |
url |
http://hdl.handle.net/10400.8/5092 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gizzi, F., Jiménez, J., Schäfer, S., Castro, N., Costa, S., Lourenço, S., José, R., Canning-Clode, J. & Monteiro, J. (2020). Before and after a disease outbreak: Tracking a keystone species recovery from a mass mortality event. Marine Environmental Research. 156. 104905. DOI: 10.1016/j.marenvres.2020.104905 0141-1136 10.1016/j.marenvres.2020.104905 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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