Polychaete assemblages and sediment pollution in a harbour with two opposing entrances

The harbour at Ceuta is one of the most important harbours in the Strait of Gibraltar. The sediments are moderately polluted with organic matter and heavy metals but the harbour has two opposing entrances and a connecting channel which increases water renewal and dissolved oxygen across the harbour....

Descripción completa

Detalles Bibliográficos
Autores: Guerra García, José Manuel, García Gómez, José Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/131774
Acceso en línea:https://hdl.handle.net/11441/131774
https://doi.org/10.1007/s10152-004-0184-4
Access Level:acceso abierto
Palabra clave:Polychaetes
Harbour ecology
Sediment pollution
Ceuta
North Africa
id ES_fa70fc71ccdec01590804d9d86e9561a
oai_identifier_str oai:idus.us.es:11441/131774
network_acronym_str ES
network_name_str España
repository_id_str
spelling Polychaete assemblages and sediment pollution in a harbour with two opposing entrancesGuerra García, José ManuelGarcía Gómez, José CarlosPolychaetesHarbour ecologySediment pollutionCeutaNorth AfricaThe harbour at Ceuta is one of the most important harbours in the Strait of Gibraltar. The sediments are moderately polluted with organic matter and heavy metals but the harbour has two opposing entrances and a connecting channel which increases water renewal and dissolved oxygen across the harbour. For these special conditions, the value of the soft bottom polychaete community as a bioindicator, and possible advantages of the presence of two harbour entrances on biotic assemblages, were studied. Twenty-one stations were selected, and 27 variables were measured in the sediment of each station. The polychaete species richness and Shannon diversity values were similar inside and outside the harbour. Nevertheless, the Pielou evenness index was significantly higher in the external stations due to high densities of some species of polychaetes such as Pseudomalacoceros tridentata and Capitella capitata inside the harbour. The multivariate approach based on polychaete species composition was much more sensitive than univariate analyses at discriminating between internal and external stations. The pollution gradient and granulometric parameters were the main factors affecting polychaete distribution. Polychaete species richness and diversity in sediments inside Ceuta harbour were higher than in conventional harbours due to the positive effects of increased water renewal. These results should be taken into consideration in design, construction and remodelling of future harbours.Ministerio de Educación, Cultura y Deporte de España. FPU AP98/28617065BMCZoologíaMinisterio de Educación, Cultura y Deporte (MECD). España2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/131774https://doi.org/10.1007/s10152-004-0184-4reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésHelgoland Marine Research, 58 (3), 83-191.FPU AP98/28617065https://doi.org/10.1007/s10152-004-0184-4info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1317742026-06-17T12:51:07Z
dc.title.none.fl_str_mv Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
title Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
spellingShingle Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
Guerra García, José Manuel
Polychaetes
Harbour ecology
Sediment pollution
Ceuta
North Africa
title_short Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
title_full Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
title_fullStr Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
title_full_unstemmed Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
title_sort Polychaete assemblages and sediment pollution in a harbour with two opposing entrances
dc.creator.none.fl_str_mv Guerra García, José Manuel
García Gómez, José Carlos
author Guerra García, José Manuel
author_facet Guerra García, José Manuel
García Gómez, José Carlos
author_role author
author2 García Gómez, José Carlos
author2_role author
dc.contributor.none.fl_str_mv Zoología
Ministerio de Educación, Cultura y Deporte (MECD). España
dc.subject.none.fl_str_mv Polychaetes
Harbour ecology
Sediment pollution
Ceuta
North Africa
topic Polychaetes
Harbour ecology
Sediment pollution
Ceuta
North Africa
description The harbour at Ceuta is one of the most important harbours in the Strait of Gibraltar. The sediments are moderately polluted with organic matter and heavy metals but the harbour has two opposing entrances and a connecting channel which increases water renewal and dissolved oxygen across the harbour. For these special conditions, the value of the soft bottom polychaete community as a bioindicator, and possible advantages of the presence of two harbour entrances on biotic assemblages, were studied. Twenty-one stations were selected, and 27 variables were measured in the sediment of each station. The polychaete species richness and Shannon diversity values were similar inside and outside the harbour. Nevertheless, the Pielou evenness index was significantly higher in the external stations due to high densities of some species of polychaetes such as Pseudomalacoceros tridentata and Capitella capitata inside the harbour. The multivariate approach based on polychaete species composition was much more sensitive than univariate analyses at discriminating between internal and external stations. The pollution gradient and granulometric parameters were the main factors affecting polychaete distribution. Polychaete species richness and diversity in sediments inside Ceuta harbour were higher than in conventional harbours due to the positive effects of increased water renewal. These results should be taken into consideration in design, construction and remodelling of future harbours.
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/131774
https://doi.org/10.1007/s10152-004-0184-4
url https://hdl.handle.net/11441/131774
https://doi.org/10.1007/s10152-004-0184-4
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Helgoland Marine Research, 58 (3), 83-191.
FPU AP98/28617065
https://doi.org/10.1007/s10152-004-0184-4
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv BMC
publisher.none.fl_str_mv BMC
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425211250573312
score 15,301603

Similares en LA Referencia