Assessing sediment quality in Spanish ports using a green alga bioassay
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Redalyc · Ciencias Marinas
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...
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| Publicado en: | Ciencias Marinas |
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Autónoma de Baja California
2008
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| _version_ | 1878325299594133504 |
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| author | I Riba |
| author_facet | I Riba |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Assessing sediment quality in Spanish ports using a green alga bioassay I Riba A DelValls T Campisi C Morales-Caselles A Rico F Abbondanzi A Iacondini Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta 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 todetermine 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. Thedevelopment 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 ontaminants (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. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034306 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/1398 10.7773/cm.v34i3.1398 |
| 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.
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. |
| format | Artículo científico |
| id | redalyc_48034306 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Autónoma de Baja California |
| spelling | 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 Morales-Caselles, C Rico, A Abbondanzi, F Campisi, T Iacondini, A Riba, I DelValls, A bioassay Dunaliella tertiolecta microalga toxicity bioensayo Dunaliella tertiolecta microalga toxicidad 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. 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. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2008-09-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398 10.7773/cm.v34i3.1398 Ciencias Marinas; Vol. 34 No. 3 (2008); 329–337 Ciencias Marinas; Vol. 34 Núm. 3 (2008); 329–337 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398/1832 ['Redalyc'] redalyc_48034306 Assessing sediment quality in Spanish ports using a green alga bioassay ['Assessing sediment quality in Spanish ports using a green alga bioassay', 'I Riba', 'Ciencias de la Tierra', 'Bioassay', 'toxicity', 'microalga', 'Dunaliella tertiolecta', 'Assessing sediment quality in Spanish ports using a green alga bioassay I Riba A DelValls T Campisi C Morales-Caselles A Rico F Abbondanzi A Iacondini Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta 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 todetermine 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. Thedevelopment 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 ontaminants (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. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034306 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34'] ['I Riba'] ['I Riba'] ['Artículo científico'] ['2008'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'Bioassay', 'toxicity', 'microalga', 'Dunaliella tertiolecta'] ['https://www.redalyc.org/articulo.oa?id=48034306'] ['Assessing sediment quality in Spanish ports using a green alga bioassay I Riba A DelValls T Campisi C Morales-Caselles A Rico F Abbondanzi A Iacondini Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta 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 todetermine 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. Thedevelopment 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 ontaminants (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. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034306 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34'] |
| spellingShingle | Assessing sediment quality in Spanish ports using a green alga bioassay I Riba Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta Assessing sediment quality in Spanish ports using a green alga bioassay I Riba A DelValls T Campisi C Morales-Caselles A Rico F Abbondanzi A Iacondini Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta 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 todetermine 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. Thedevelopment 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 ontaminants (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. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034306 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34 |
| title | Assessing sediment quality in Spanish ports using a green alga bioassay |
| title_alt | Evaluación de la calidad del sedimento en puertos españoles mediante un bioensayo con algas verdes |
| topic | Ciencias de la Tierra Bioassay toxicity microalga Dunaliella tertiolecta |
| topic_facet | bioassay Dunaliella tertiolecta microalga toxicity bioensayo toxicidad |
| url | https://www.redalyc.org/articulo.oa?id=48034306 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1398 |