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...

Full description

Bibliographic Details
Main Authors: P Cecilio, J Raimundo, J Canário, C Vale, M Sequeira
Format: Article
Language:English
Published: Universidad Autónoma de Baja California 2006-08-01
Series:Ciencias Marinas
Subjects:
Online Access:http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094
_version_ 1827330437957025792
author P Cecilio
J Raimundo
J Canário
C Vale
M Sequeira
author_facet P Cecilio
J Raimundo
J Canário
C Vale
M Sequeira
author_sort P Cecilio
collection DOAJ
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.
first_indexed 2024-03-07T16:11:01Z
format Article
id doaj.art-639fa4c8d5fd45ebafcb23a73e6ba049
institution Directory Open Access Journal
issn 0185-3880
2395-9053
language English
last_indexed 2024-03-07T16:11:01Z
publishDate 2006-08-01
publisher Universidad Autónoma de Baja California
record_format Article
series Ciencias Marinas
spelling doaj.art-639fa4c8d5fd45ebafcb23a73e6ba0492024-03-04T16:46:00ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532006-08-01322B10.7773/cm.v32i22.1094Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coastP Cecilio0J Raimundo1J Canário2C Vale3M Sequeira4Institute for Fisheries and Sea ResearchInstitute for Fisheries and Sea ResearchInstitute for Fisheries and Sea ResearchInstitute for Fisheries and Sea ResearchNature Conservation Institute 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. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094total mercuryorganic mercurylengthDelphinus delphisPortuguese coast
spellingShingle P Cecilio
J Raimundo
J Canário
C Vale
M Sequeira
Relationships between total and organic mercury concentrations in tissues and length of common dolphins (Delphinus delphis) from the Portuguese coast
Ciencias Marinas
total mercury
organic mercury
length
Delphinus delphis
Portuguese coast
title 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_short 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
topic total mercury
organic mercury
length
Delphinus delphis
Portuguese coast
url http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1094
work_keys_str_mv AT pcecilio relationshipsbetweentotalandorganicmercuryconcentrationsintissuesandlengthofcommondolphinsdelphinusdelphisfromtheportuguesecoast
AT jraimundo relationshipsbetweentotalandorganicmercuryconcentrationsintissuesandlengthofcommondolphinsdelphinusdelphisfromtheportuguesecoast
AT jcanario relationshipsbetweentotalandorganicmercuryconcentrationsintissuesandlengthofcommondolphinsdelphinusdelphisfromtheportuguesecoast
AT cvale relationshipsbetweentotalandorganicmercuryconcentrationsintissuesandlengthofcommondolphinsdelphinusdelphisfromtheportuguesecoast
AT msequeira relationshipsbetweentotalandorganicmercuryconcentrationsintissuesandlengthofcommondolphinsdelphinusdelphisfromtheportuguesecoast