Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10451/41189 |
Resumo: | The sudden appearance and disappearance of nudibranchs in intertidal areas have puzzled researchers all over the world, giving rise to a great diversity of theories to explain it. Here we conducted a five-year survey to evaluate seasonal changes in the abundance of Dendrodoris herytra and D. grandiflora in the Sado estuary (Portugal) and to explore a possible relationship with environmental factors such as temperature, salinity, turbidity and dissolved oxygen. Moreover, we report, for the first time, the capacity of Dendrodoris nudibranchs to tolerate emersion (unhidden and completely exposed to sun exposure) during low tides. Our results showed that both species consistently started to appear emerged in March, reaching a peak abundance between April and May, and completely disappearing in July. In both species, this temporal trend was significantly associated with water temperature, turbidity, and dissolved oxygen, but not with salinity. We argue that the sudden appearance and disappearance of these nudibranchs in intertidal areas may result from a seasonal horizontal movement of adult nudibranchs from subtidal areas to mate in intertidal areas during spring, when phytoplankton production is enhanced and planktotrophic larvae may benefit from greater food availability. |
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Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersionDendrodorisNudibranchsEmersionAggregationsHorizontal movementsSeasonal abundanceThe sudden appearance and disappearance of nudibranchs in intertidal areas have puzzled researchers all over the world, giving rise to a great diversity of theories to explain it. Here we conducted a five-year survey to evaluate seasonal changes in the abundance of Dendrodoris herytra and D. grandiflora in the Sado estuary (Portugal) and to explore a possible relationship with environmental factors such as temperature, salinity, turbidity and dissolved oxygen. Moreover, we report, for the first time, the capacity of Dendrodoris nudibranchs to tolerate emersion (unhidden and completely exposed to sun exposure) during low tides. Our results showed that both species consistently started to appear emerged in March, reaching a peak abundance between April and May, and completely disappearing in July. In both species, this temporal trend was significantly associated with water temperature, turbidity, and dissolved oxygen, but not with salinity. We argue that the sudden appearance and disappearance of these nudibranchs in intertidal areas may result from a seasonal horizontal movement of adult nudibranchs from subtidal areas to mate in intertidal areas during spring, when phytoplankton production is enhanced and planktotrophic larvae may benefit from greater food availability.BMCRepositório da Universidade de LisboaCyrne, RicardoRosa, InêsFaleiro, FilipaDionísio, GiselaBaptista, MiguelCouto, AnaPola, MartaRosa, Rui2020-01-19T20:36:15Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/41189eng1438-387X10.1186/s10152-018-0516-4info: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:RCAAP2023-11-08T16:37:54Zoai:repositorio.ul.pt:10451/41189Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:53:08.560606Repositório 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 |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
title |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
spellingShingle |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion Cyrne, Ricardo Dendrodoris Nudibranchs Emersion Aggregations Horizontal movements Seasonal abundance |
title_short |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
title_full |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
title_fullStr |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
title_full_unstemmed |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
title_sort |
Nudibranchs out of water: long-term temporal variations in the abundance of two Dendrodoris species under emersion |
author |
Cyrne, Ricardo |
author_facet |
Cyrne, Ricardo Rosa, Inês Faleiro, Filipa Dionísio, Gisela Baptista, Miguel Couto, Ana Pola, Marta Rosa, Rui |
author_role |
author |
author2 |
Rosa, Inês Faleiro, Filipa Dionísio, Gisela Baptista, Miguel Couto, Ana Pola, Marta Rosa, Rui |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Cyrne, Ricardo Rosa, Inês Faleiro, Filipa Dionísio, Gisela Baptista, Miguel Couto, Ana Pola, Marta Rosa, Rui |
dc.subject.por.fl_str_mv |
Dendrodoris Nudibranchs Emersion Aggregations Horizontal movements Seasonal abundance |
topic |
Dendrodoris Nudibranchs Emersion Aggregations Horizontal movements Seasonal abundance |
description |
The sudden appearance and disappearance of nudibranchs in intertidal areas have puzzled researchers all over the world, giving rise to a great diversity of theories to explain it. Here we conducted a five-year survey to evaluate seasonal changes in the abundance of Dendrodoris herytra and D. grandiflora in the Sado estuary (Portugal) and to explore a possible relationship with environmental factors such as temperature, salinity, turbidity and dissolved oxygen. Moreover, we report, for the first time, the capacity of Dendrodoris nudibranchs to tolerate emersion (unhidden and completely exposed to sun exposure) during low tides. Our results showed that both species consistently started to appear emerged in March, reaching a peak abundance between April and May, and completely disappearing in July. In both species, this temporal trend was significantly associated with water temperature, turbidity, and dissolved oxygen, but not with salinity. We argue that the sudden appearance and disappearance of these nudibranchs in intertidal areas may result from a seasonal horizontal movement of adult nudibranchs from subtidal areas to mate in intertidal areas during spring, when phytoplankton production is enhanced and planktotrophic larvae may benefit from greater food availability. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z 2020-01-19T20:36:15Z |
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/10451/41189 |
url |
http://hdl.handle.net/10451/41189 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1438-387X 10.1186/s10152-018-0516-4 |
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 |
BMC |
publisher.none.fl_str_mv |
BMC |
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 |
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 |
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1799134469323489280 |