Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast

Total and organic mercury concentrations were determined in the liver, kidney, muscle, skin, brain and blubber collected from 12 common dolphins, Delphinus delphis, stranded along the Portuguese coast between 1998 and 2003. The liver was the preferential organ for Hg accumulation, while the lowest v...

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Detalhes bibliográficos
Autores principales:	Cecilio, P, Raimundo, J, Canário, J, Vale, C, Sequeira, M
Formato:	info:eu-repo/semantics/article
Idioma:	eng
Publicado em:	Iniversidad Autónoma de Baja California 2006
Assuntos:	total mercury organic mercury length Delphinus delphis Portuguese coast mercurio total mercurio orgánico longitud costa portuguesa
Acesso em linha:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094
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id	repositorioinstitucional-20.500.12930-7416
record_format	dspace
spelling	repositorioinstitucional-20.500.12930-74162023-05-09T14:31:06Z Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast Relación entre las concentraciones de mercurio total y orgánico en tejidos de delfines comunes (Delphinus delphis) y su longitud a lo largo de la costa portuguesa Cecilio, P Raimundo, J Canário, J Vale, C Sequeira, M total mercury organic mercury length Delphinus delphis Portuguese coast mercurio total mercurio orgánico longitud Delphinus delphis costa portuguesa Total and organic mercury concentrations were determined in the liver, kidney, muscle, skin, brain and blubber collected from 12 common dolphins, Delphinus delphis, stranded along the Portuguese coast between 1998 and 2003. The liver was the preferential organ for Hg accumulation, while the lowest values were detected in the blubber. Total and organic Hg concentrations in the liver, skin and blubber of dolphins were positively correlated to the levels found in muscle. Positive correlations were also observed between liver and kidney, and skin and blubber. Muscle levels increased linearly with length, while those of liver and kidney varied exponentially for skin, brain and blubber, were sparse. The percentage of organic Hg decreased linearly with length in muscle and exponentially in liver and kidney, accounting for only 10–30% of the total Hg in adults. The concentrations found in this work were lower than those reported by other authors for the same species from southern European coasts. Se determinaron las concentraciones de mercurio total y mercurio orgánico en el hígado, riñones, músculo, piel, cerebro y grasa de 12 delfines comunes, Delphinus delphis, varados a lo largo de la costa portuguesa, entre 1998 y 2003. El hígado fue el órgano preferencial para la acumulación del Hg mientras que las concentraciones más bajas de este metal fueron detectadas en la grasa. Las concentraciones de Hg total y orgánico en hígado, piel y grasa de los delfines presentaron una correlación positiva con los niveles obtenidos en el músculo. También se encontraron buenas correlaciones entre hígado-riñones y piel-grasa. Los niveles en el músculo aumentaron linealmente con la longitud de los delfines; los del hígado y riñones variaron exponencialmente; mientras que las concentraciones en la piel, cerebro y grasa prácticamente no tuvieron variaciones. El porcentaje de Hg orgánico disminuyó linealmente con la longitud en el músculo y exponencialmente en el hígado y riñones, representando en los adultos apenas entre 10% y 30% del mercurio total. Las concentraciones encontradas en este trabajo fueron inferiores a las documentadas por otros autores para las mismas especies provenientes del sur de la costa Europea. 2006-08-21 2021-06-03T03:55:15Z 2021-06-03T03:55:15Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094 10.7773/cm.v32i22.1094 https://hdl.handle.net/20.500.12930/7416 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094/1919 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 32 No. 2B (2006); 379-387 Ciencias Marinas; Vol. 32 Núm. 2B (2006); 379-387 2395-9053 0185-3880
institution	Repositorio Institucional
collection	DSpace
language	eng
topic	total mercury organic mercury length Delphinus delphis Portuguese coast mercurio total mercurio orgánico longitud Delphinus delphis costa portuguesa
spellingShingle	total mercury organic mercury length Delphinus delphis Portuguese coast mercurio total mercurio orgánico longitud Delphinus delphis costa portuguesa Cecilio, P Raimundo, J Canário, J Vale, C Sequeira, M Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
description	Total and organic mercury concentrations were determined in the liver, kidney, muscle, skin, brain and blubber collected from 12 common dolphins, Delphinus delphis, stranded along the Portuguese coast between 1998 and 2003. The liver was the preferential organ for Hg accumulation, while the lowest values were detected in the blubber. Total and organic Hg concentrations in the liver, skin and blubber of dolphins were positively correlated to the levels found in muscle. Positive correlations were also observed between liver and kidney, and skin and blubber. Muscle levels increased linearly with length, while those of liver and kidney varied exponentially for skin, brain and blubber, were sparse. The percentage of organic Hg decreased linearly with length in muscle and exponentially in liver and kidney, accounting for only 10–30% of the total Hg in adults. The concentrations found in this work were lower than those reported by other authors for the same species from southern European coasts.
format	info:eu-repo/semantics/article
author	Cecilio, P Raimundo, J Canário, J Vale, C Sequeira, M
author_facet	Cecilio, P Raimundo, J Canário, J Vale, C Sequeira, M
author_sort	Cecilio, P
title	Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
title_short	Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
title_full	Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
title_fullStr	Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
title_full_unstemmed	Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
title_sort	relationships between total and organic mercury concentrations in tissues and length of common dolphins (delphinus delphis) from the portuguese coast
publisher	Iniversidad Autónoma de Baja California
publishDate	2006
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094
_version_	1792610797664337920

Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast

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