Assessing sediment quality in Spanish ports using a green alga bioassay

Coastal zones are under environmental pressure due to human activities, and ports are the areas that probably present the highest levels of contaminants in their sediments. In the present study we have combined chemical data and biological effects to determine the sediment quality of six Spanish por...

Descripción completa

Detalles Bibliográficos
Autores: Morales-Caselles, C, Rico, A, Abbondanzi, F, Campisi, T, Iacondini, A, Riba, I, DelValls, A
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:México
Institución:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repositorio:Ciencias Marinas
Idioma:inglés
OAI Identifier:oai:cienciasmarinas.com.mx:article/1398
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398
Access Level:acceso abierto
Palabra clave:bioassay
Dunaliella tertiolecta
microalga
toxicity
bioensayo
toxicidad
id MX_d0e16ce2e42d9dc27770021b488ffc3a
oai_identifier_str oai:cienciasmarinas.com.mx:article/1398
network_acronym_str MX
network_name_str México
repository_id_str
spelling Assessing sediment quality in Spanish ports using a green alga bioassayEvaluación de la calidad del sedimento en puertos españoles mediante un bioensayo con algas verdesMorales-Caselles, CRico, AAbbondanzi, FCampisi, TIacondini, ARiba, IDelValls, AbioassayDunaliella tertiolectamicroalgatoxicitybioensayoDunaliella tertiolectamicroalgatoxicidadCoastal zones are under environmental pressure due to human activities, and ports are the areas that probably present the highest levels of contaminants in their sediments. In the present study we have combined chemical data and biological effects to determine the sediment quality of six Spanish ports. Trace metals and organic contaminants have been analyzed, and an acute bioassay was carried out in sediment elutriate using the unicellular green alga Dunaliella tertiolecta. The toxicological parameter employed was EC50, which was estimated after exposure to different concentrations of elutriates during 72 h. The development of this alga may be affected when there is a xenobiotic in the environment, and growth inhibition can be quantified and linked to the levels of contaminants in the sediment in order to determine its quality. The results showed that the metals (Cd, Cr, Hg, and Zn) and organic contaminants (PAHs and PCBs) bound to the sediments reduced the normal growth of the alga, but no alterations were detected due to the presence of Cu. The main disadvantage observed was the hormesis produced by the presence of high levels of organic material in the sediment that might hide the toxicity of xenobiotics. En la actualidad las áreas costeras están sometidas a una presión ambiental por parte de las actividades humanas y los puertos son las zonas que probablemente presentan los mayores niveles de contaminantes en sus sedimentos. En el presente estudio se han combinado datos químicos y efectos biológicos para determinar la calidad ambiental de los sedimentos de seis puertos españoles. Se llevó a cabo el análisis de metales traza y contaminantes orgánicos además de un ensayo de toxicidad con la microalga marina Dunaliella tertiolecta. El parámetro toxicológico utilizado fue el EC50, calculado a partir de una exposición a distintas concentraciones de lixiviado de sedimento durante 72 h. El desarrollo de este alga verde puede verse afectado con la presencia ambiental de xenobióticos de forma que la inhibición del crecimiento de la población puede ser cuantificada y relacionada con los niveles de contaminantes en el sedimento con el fin de determinar su calidad. Los resultados demostraron que tanto la presencia de metales (Cd, Cr, Hg y Zn) como de contaminantes orgánicos (PAHs y PCBs) en el sedimento afectaron al crecimiento normal del alga mientras que no se detectaron alteraciones por la presencia de Cu. La principal desventaja observada fue el fenómeno de hormesis que ocurre con concentraciones elevadas de materia orgánica en el sedimento enmascarando la toxicidad de los xenobióticos.Iniversidad Autónoma de Baja California2008-09-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/139810.7773/cm.v34i3.1398Ciencias Marinas; Vol. 34 No. 3 (2008); 329–337Ciencias Marinas; Vol. 34 Núm. 3 (2008); 329–3372395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398/1832info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/13982024-08-22T17:01:39Z
dc.title.none.fl_str_mv Assessing sediment quality in Spanish ports using a green alga bioassay
Evaluación de la calidad del sedimento en puertos españoles mediante un bioensayo con algas verdes
title Assessing sediment quality in Spanish ports using a green alga bioassay
spellingShingle Assessing sediment quality in Spanish ports using a green alga bioassay
Morales-Caselles, C
bioassay
Dunaliella tertiolecta
microalga
toxicity
bioensayo
Dunaliella tertiolecta
microalga
toxicidad
title_short Assessing sediment quality in Spanish ports using a green alga bioassay
title_full Assessing sediment quality in Spanish ports using a green alga bioassay
title_fullStr Assessing sediment quality in Spanish ports using a green alga bioassay
title_full_unstemmed Assessing sediment quality in Spanish ports using a green alga bioassay
title_sort Assessing sediment quality in Spanish ports using a green alga bioassay
dc.creator.none.fl_str_mv Morales-Caselles, C
Rico, A
Abbondanzi, F
Campisi, T
Iacondini, A
Riba, I
DelValls, A
author Morales-Caselles, C
author_facet Morales-Caselles, C
Rico, A
Abbondanzi, F
Campisi, T
Iacondini, A
Riba, I
DelValls, A
author_role author
author2 Rico, A
Abbondanzi, F
Campisi, T
Iacondini, A
Riba, I
DelValls, A
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv bioassay
Dunaliella tertiolecta
microalga
toxicity
bioensayo
Dunaliella tertiolecta
microalga
toxicidad
topic bioassay
Dunaliella tertiolecta
microalga
toxicity
bioensayo
Dunaliella tertiolecta
microalga
toxicidad
description Coastal zones are under environmental pressure due to human activities, and ports are the areas that probably present the highest levels of contaminants in their sediments. In the present study we have combined chemical data and biological effects to determine the sediment quality of six Spanish ports. Trace metals and organic contaminants have been analyzed, and an acute bioassay was carried out in sediment elutriate using the unicellular green alga Dunaliella tertiolecta. The toxicological parameter employed was EC50, which was estimated after exposure to different concentrations of elutriates during 72 h. The development of this alga may be affected when there is a xenobiotic in the environment, and growth inhibition can be quantified and linked to the levels of contaminants in the sediment in order to determine its quality. The results showed that the metals (Cd, Cr, Hg, and Zn) and organic contaminants (PAHs and PCBs) bound to the sediments reduced the normal growth of the alga, but no alterations were detected due to the presence of Cu. The main disadvantage observed was the hormesis produced by the presence of high levels of organic material in the sediment that might hide the toxicity of xenobiotics. 
publishDate 2008
dc.date.none.fl_str_mv 2008-09-17
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Artículo Arbitrado
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398
10.7773/cm.v34i3.1398
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398
identifier_str_mv 10.7773/cm.v34i3.1398
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398/1832
dc.rights.none.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 Iniversidad Autónoma de Baja California
publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas; Vol. 34 No. 3 (2008); 329–337
Ciencias Marinas; Vol. 34 Núm. 3 (2008); 329–337
2395-9053
0185-3880
reponame:Ciencias Marinas
instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron:UABC
instname_str UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron_str UABC
institution UABC
reponame_str Ciencias Marinas
collection Ciencias Marinas
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858177090077065216
score 15,638193

Similares en LA Referencia