Decay and persistence of empty bivalve shells in temperate riverine systems

Detalhes bibliográficos
Autor(a) principal: Ilarri, M.
Data de Publicação: 2019
Outros Autores: Souza, A. T., Amorim, L., Sousa, Ronaldo Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/72664
Resumo: Bivalve shells can persist over a geological time, acting as important physical resources to the associated fauna. However, few studies have investigated their relevance as persistent long-term ecological attributes to the ecosystem. As such, it is relevant to investigate the shell decays in riverine systems subjected to different environmental conditions. Towards this end, shells of four bivalve species (Anodonta anatina, Corbicula fluminea, Potomida littoralis and Unio delphinus) were made available individually and in clusters of different sizes. The effects of river flow and seasonality were assessed by recording the decay rates of shells in lentic and lotic habitats throughout the year. Our results evidenced that the decays varied among species and depend on shell size, water flow and season. Thin shelled species (A. anatina and U. delphinus) showed the highest mean percentage of decay per month, 3.17% (lotic) and 2.77% (lotic), respectively, and thick shelled species (C. fluminea and P. littoralis) the lowest, 2.02% (lotic) and 1.83% (lotic), respectively. Size was a relevant variable explaining decays, with the smallest shells presenting the highest values, 1.2–2.0 times higher compared to the other size classes. Also, robustness showed to be the most relevant feature explaining the decays in thick shelled species. River flow was also a relevant descriptor of the decays, with higher decays observed in the lotic compared to the lentic habitats. Furthermore, lower decays were observed mainly during summer (lentic site), and autumn (lotic site) associated to the burial effect of leaves. In summary, shells of the native species A. anatina and U. delphinus are expected to persist and contribute less as habitat engineering species, than shells of the native P. littoralis and invasive C. fluminea species. This is especially valid to lotic habitats where the decays were up to 2.13 times higher than in lentic habitats.
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spelling Decay and persistence of empty bivalve shells in temperate riverine systemsEcosystem engineerShell morphologyLeaf burial effectRiver flowNative speciesInvasive speciesCiências Naturais::Ciências BiológicasScience & TechnologyBivalve shells can persist over a geological time, acting as important physical resources to the associated fauna. However, few studies have investigated their relevance as persistent long-term ecological attributes to the ecosystem. As such, it is relevant to investigate the shell decays in riverine systems subjected to different environmental conditions. Towards this end, shells of four bivalve species (Anodonta anatina, Corbicula fluminea, Potomida littoralis and Unio delphinus) were made available individually and in clusters of different sizes. The effects of river flow and seasonality were assessed by recording the decay rates of shells in lentic and lotic habitats throughout the year. Our results evidenced that the decays varied among species and depend on shell size, water flow and season. Thin shelled species (A. anatina and U. delphinus) showed the highest mean percentage of decay per month, 3.17% (lotic) and 2.77% (lotic), respectively, and thick shelled species (C. fluminea and P. littoralis) the lowest, 2.02% (lotic) and 1.83% (lotic), respectively. Size was a relevant variable explaining decays, with the smallest shells presenting the highest values, 1.2–2.0 times higher compared to the other size classes. Also, robustness showed to be the most relevant feature explaining the decays in thick shelled species. River flow was also a relevant descriptor of the decays, with higher decays observed in the lotic compared to the lentic habitats. Furthermore, lower decays were observed mainly during summer (lentic site), and autumn (lotic site) associated to the burial effect of leaves. In summary, shells of the native species A. anatina and U. delphinus are expected to persist and contribute less as habitat engineering species, than shells of the native P. littoralis and invasive C. fluminea species. This is especially valid to lotic habitats where the decays were up to 2.13 times higher than in lentic habitats.This study was supported by the FCT (Foundation for Science and Technology, Portugal) strategic fund UID/Multi/04423/2019.ElsevierUniversidade do MinhoIlarri, M.Souza, A. T.Amorim, L.Sousa, Ronaldo Gomes20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/72664engIlarri, M. I., Souza, A. T., Amorim, L., & Sousa, R. (2019). Decay and persistence of empty bivalve shells in a temperate riverine system. Science of the Total Environment, 683, 185-192. doi: https://doi.org/10.1016/j.scitotenv.2019.05.2080048-96971879-102610.1016/j.scitotenv.2019.05.20831129326https://www.sciencedirect.com/science/article/pii/S0048969719322478info: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:RCAAP2023-07-21T11:54:02Zoai:repositorium.sdum.uminho.pt:1822/72664Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:43:29.483787Repositório 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 Decay and persistence of empty bivalve shells in temperate riverine systems
title Decay and persistence of empty bivalve shells in temperate riverine systems
spellingShingle Decay and persistence of empty bivalve shells in temperate riverine systems
Ilarri, M.
Ecosystem engineer
Shell morphology
Leaf burial effect
River flow
Native species
Invasive species
Ciências Naturais::Ciências Biológicas
Science & Technology
title_short Decay and persistence of empty bivalve shells in temperate riverine systems
title_full Decay and persistence of empty bivalve shells in temperate riverine systems
title_fullStr Decay and persistence of empty bivalve shells in temperate riverine systems
title_full_unstemmed Decay and persistence of empty bivalve shells in temperate riverine systems
title_sort Decay and persistence of empty bivalve shells in temperate riverine systems
author Ilarri, M.
author_facet Ilarri, M.
Souza, A. T.
Amorim, L.
Sousa, Ronaldo Gomes
author_role author
author2 Souza, A. T.
Amorim, L.
Sousa, Ronaldo Gomes
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Ilarri, M.
Souza, A. T.
Amorim, L.
Sousa, Ronaldo Gomes
dc.subject.por.fl_str_mv Ecosystem engineer
Shell morphology
Leaf burial effect
River flow
Native species
Invasive species
Ciências Naturais::Ciências Biológicas
Science & Technology
topic Ecosystem engineer
Shell morphology
Leaf burial effect
River flow
Native species
Invasive species
Ciências Naturais::Ciências Biológicas
Science & Technology
description Bivalve shells can persist over a geological time, acting as important physical resources to the associated fauna. However, few studies have investigated their relevance as persistent long-term ecological attributes to the ecosystem. As such, it is relevant to investigate the shell decays in riverine systems subjected to different environmental conditions. Towards this end, shells of four bivalve species (Anodonta anatina, Corbicula fluminea, Potomida littoralis and Unio delphinus) were made available individually and in clusters of different sizes. The effects of river flow and seasonality were assessed by recording the decay rates of shells in lentic and lotic habitats throughout the year. Our results evidenced that the decays varied among species and depend on shell size, water flow and season. Thin shelled species (A. anatina and U. delphinus) showed the highest mean percentage of decay per month, 3.17% (lotic) and 2.77% (lotic), respectively, and thick shelled species (C. fluminea and P. littoralis) the lowest, 2.02% (lotic) and 1.83% (lotic), respectively. Size was a relevant variable explaining decays, with the smallest shells presenting the highest values, 1.2–2.0 times higher compared to the other size classes. Also, robustness showed to be the most relevant feature explaining the decays in thick shelled species. River flow was also a relevant descriptor of the decays, with higher decays observed in the lotic compared to the lentic habitats. Furthermore, lower decays were observed mainly during summer (lentic site), and autumn (lotic site) associated to the burial effect of leaves. In summary, shells of the native species A. anatina and U. delphinus are expected to persist and contribute less as habitat engineering species, than shells of the native P. littoralis and invasive C. fluminea species. This is especially valid to lotic habitats where the decays were up to 2.13 times higher than in lentic habitats.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01T00:00:00Z
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/1822/72664
url http://hdl.handle.net/1822/72664
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ilarri, M. I., Souza, A. T., Amorim, L., & Sousa, R. (2019). Decay and persistence of empty bivalve shells in a temperate riverine system. Science of the Total Environment, 683, 185-192. doi: https://doi.org/10.1016/j.scitotenv.2019.05.208
0048-9697
1879-1026
10.1016/j.scitotenv.2019.05.208
31129326
https://www.sciencedirect.com/science/article/pii/S0048969719322478
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)
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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