The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production
Autor(a) principal: | |
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Data de Publicação: | 2000 |
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/10773/10313 |
Resumo: | The abundance and biomass of Corophium multisetosum Stock, 1952 were determined from benthic corer samples collected monthly over 1 yr in the upper reaches of Canal de Mira (Ria de Aveiro, Portugal). Both density and biomass over the sampling period were negatively correlated with water temperature and positively correlated with chlorophyll n concentration in the sediment. C, multisetosum density was significantly negatively correlated with plant biomass and positively correlated with salinity. The nature of the sediment, favourable environmental conditions, high availability of food and low interspecific competition allowed the population to reach a maximal density of 200 x 10(3) individuals m(-2) and a maximal biomass lash-free dry wt, AFDW) of 62 g(AFDW) m(-2) The population was highly productive, especially during the autumn/winter period. Production, estimated by two different methods (Hynes method: 251 gAFDw m(-2) yr(-1); Morin-Bourassa method: 308 g(DW) m(-2) yr(-1)), was much higher than the values reported for other Corophium species. The annual P:(B) over bar ratio (10) was high, but similar to values reported for Swedish populations of C. volutator and lower than the values estimated from Mediterranean populations of C. insidiosum. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and productionTemperatureCorophiumAmphipodaReproductionRia de AveiroThe abundance and biomass of Corophium multisetosum Stock, 1952 were determined from benthic corer samples collected monthly over 1 yr in the upper reaches of Canal de Mira (Ria de Aveiro, Portugal). Both density and biomass over the sampling period were negatively correlated with water temperature and positively correlated with chlorophyll n concentration in the sediment. C, multisetosum density was significantly negatively correlated with plant biomass and positively correlated with salinity. The nature of the sediment, favourable environmental conditions, high availability of food and low interspecific competition allowed the population to reach a maximal density of 200 x 10(3) individuals m(-2) and a maximal biomass lash-free dry wt, AFDW) of 62 g(AFDW) m(-2) The population was highly productive, especially during the autumn/winter period. Production, estimated by two different methods (Hynes method: 251 gAFDw m(-2) yr(-1); Morin-Bourassa method: 308 g(DW) m(-2) yr(-1)), was much higher than the values reported for other Corophium species. The annual P:(B) over bar ratio (10) was high, but similar to values reported for Swedish populations of C. volutator and lower than the values estimated from Mediterranean populations of C. insidiosum.Springer Verlag2000-112000-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/10313eng0025-316210.1007/s002270000385Cunha, M. R.Moreira, M. H.Sorbe, J. C.info: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:RCAAP2024-02-22T11:06:49Zoai:ria.ua.pt:10773/10313Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:43:01.758969Repositório 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 |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
title |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
spellingShingle |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production Cunha, M. R. Temperature Corophium Amphipoda Reproduction Ria de Aveiro |
title_short |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
title_full |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
title_fullStr |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
title_full_unstemmed |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
title_sort |
The amphipod Corophium multisetosum (Corophiidae) in Ria de Aveiro (NW Portugal). II. Abundance, biomass and production |
author |
Cunha, M. R. |
author_facet |
Cunha, M. R. Moreira, M. H. Sorbe, J. C. |
author_role |
author |
author2 |
Moreira, M. H. Sorbe, J. C. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Cunha, M. R. Moreira, M. H. Sorbe, J. C. |
dc.subject.por.fl_str_mv |
Temperature Corophium Amphipoda Reproduction Ria de Aveiro |
topic |
Temperature Corophium Amphipoda Reproduction Ria de Aveiro |
description |
The abundance and biomass of Corophium multisetosum Stock, 1952 were determined from benthic corer samples collected monthly over 1 yr in the upper reaches of Canal de Mira (Ria de Aveiro, Portugal). Both density and biomass over the sampling period were negatively correlated with water temperature and positively correlated with chlorophyll n concentration in the sediment. C, multisetosum density was significantly negatively correlated with plant biomass and positively correlated with salinity. The nature of the sediment, favourable environmental conditions, high availability of food and low interspecific competition allowed the population to reach a maximal density of 200 x 10(3) individuals m(-2) and a maximal biomass lash-free dry wt, AFDW) of 62 g(AFDW) m(-2) The population was highly productive, especially during the autumn/winter period. Production, estimated by two different methods (Hynes method: 251 gAFDw m(-2) yr(-1); Morin-Bourassa method: 308 g(DW) m(-2) yr(-1)), was much higher than the values reported for other Corophium species. The annual P:(B) over bar ratio (10) was high, but similar to values reported for Swedish populations of C. volutator and lower than the values estimated from Mediterranean populations of C. insidiosum. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-11 2000-11-01T00:00:00Z |
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/10773/10313 |
url |
http://hdl.handle.net/10773/10313 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0025-3162 10.1007/s002270000385 |
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 |
Springer Verlag |
publisher.none.fl_str_mv |
Springer Verlag |
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 |
|
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1799137479079493632 |