Accumulation of mercury in the tissues of the common octopus Octopus vulgaris (L.) in two localities on the Portuguese coast

S. Seixas, P. Bustamante, Graham John Pierce

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Mercury concentrations were measured in tissues of 12 individuals of Octopus vulgaris, captured by the commercial fishery at two points along the Portuguese coast, Viana do Castelo and Cascais, in spring 2002. Concentrations were determined in six tissues (digestive gland, branchial hearts, gills, mantle, arms, and gonads). Correlations between mercury concentrations in different tissues were examined as were correlations between mercury levels and total length, mantle length, weight, gonadosomatic index, digestive gland index, and state of maturation. Differences between sexes and localities were analysed. The concentration of mercury in the digestive gland (Viana, 0.58 +/- 0.08, and Cascais, 3.43 +/- 2.57 mg/kg dry weight) was higher than in the other tissues, and values were generally similar to those recorded in previous studies on octopods. Arm muscle contained most of the mercury with 56% of the total body burden followed by the digestive gland with 31%, mantle with 11%, gills with 0.8%, gonad with 0.5%, and branchial heart with 0.2%. In all tissues, mercury concentrations were slightly higher in samples from Cascais than in Viana do Castelo, which is consistent with higher concentrations recorded in seawater at Cascais. Levels of mercury determined in octopus were within the range of values legally defined as safe for human consumption. (c) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)113-122
Number of pages9
JournalScience of the Total Environment
Volume340
Issue number1-3
Early online date19 Oct 2004
DOIs
Publication statusPublished - 20 Mar 2005

Keywords

  • toxic element
  • marine pollution
  • cephalopods
  • mercury
  • octopus
  • Northern Tyrrhenian Sea
  • dietary-intake
  • chemical form
  • life-cycle
  • selenium
  • seafood
  • cadmium
  • Spain
  • Gulf
  • fish

Cite this

Accumulation of mercury in the tissues of the common octopus Octopus vulgaris (L.) in two localities on the Portuguese coast. / Seixas, S.; Bustamante, P.; Pierce, Graham John.

In: Science of the Total Environment, Vol. 340, No. 1-3, 20.03.2005, p. 113-122.

Research output: Contribution to journalArticle

@article{e991d84a723a415b80b5793f0022488b,
title = "Accumulation of mercury in the tissues of the common octopus Octopus vulgaris (L.) in two localities on the Portuguese coast",
abstract = "Mercury concentrations were measured in tissues of 12 individuals of Octopus vulgaris, captured by the commercial fishery at two points along the Portuguese coast, Viana do Castelo and Cascais, in spring 2002. Concentrations were determined in six tissues (digestive gland, branchial hearts, gills, mantle, arms, and gonads). Correlations between mercury concentrations in different tissues were examined as were correlations between mercury levels and total length, mantle length, weight, gonadosomatic index, digestive gland index, and state of maturation. Differences between sexes and localities were analysed. The concentration of mercury in the digestive gland (Viana, 0.58 +/- 0.08, and Cascais, 3.43 +/- 2.57 mg/kg dry weight) was higher than in the other tissues, and values were generally similar to those recorded in previous studies on octopods. Arm muscle contained most of the mercury with 56{\%} of the total body burden followed by the digestive gland with 31{\%}, mantle with 11{\%}, gills with 0.8{\%}, gonad with 0.5{\%}, and branchial heart with 0.2{\%}. In all tissues, mercury concentrations were slightly higher in samples from Cascais than in Viana do Castelo, which is consistent with higher concentrations recorded in seawater at Cascais. Levels of mercury determined in octopus were within the range of values legally defined as safe for human consumption. (c) 2004 Elsevier B.V. All rights reserved.",
keywords = "toxic element, marine pollution, cephalopods, mercury, octopus, Northern Tyrrhenian Sea, dietary-intake, chemical form, life-cycle, selenium, seafood, cadmium, Spain, Gulf, fish",
author = "S. Seixas and P. Bustamante and Pierce, {Graham John}",
year = "2005",
month = "3",
day = "20",
doi = "10.1016/j.scitotenv.2004.08.012",
language = "English",
volume = "340",
pages = "113--122",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Accumulation of mercury in the tissues of the common octopus Octopus vulgaris (L.) in two localities on the Portuguese coast

AU - Seixas, S.

AU - Bustamante, P.

AU - Pierce, Graham John

PY - 2005/3/20

Y1 - 2005/3/20

N2 - Mercury concentrations were measured in tissues of 12 individuals of Octopus vulgaris, captured by the commercial fishery at two points along the Portuguese coast, Viana do Castelo and Cascais, in spring 2002. Concentrations were determined in six tissues (digestive gland, branchial hearts, gills, mantle, arms, and gonads). Correlations between mercury concentrations in different tissues were examined as were correlations between mercury levels and total length, mantle length, weight, gonadosomatic index, digestive gland index, and state of maturation. Differences between sexes and localities were analysed. The concentration of mercury in the digestive gland (Viana, 0.58 +/- 0.08, and Cascais, 3.43 +/- 2.57 mg/kg dry weight) was higher than in the other tissues, and values were generally similar to those recorded in previous studies on octopods. Arm muscle contained most of the mercury with 56% of the total body burden followed by the digestive gland with 31%, mantle with 11%, gills with 0.8%, gonad with 0.5%, and branchial heart with 0.2%. In all tissues, mercury concentrations were slightly higher in samples from Cascais than in Viana do Castelo, which is consistent with higher concentrations recorded in seawater at Cascais. Levels of mercury determined in octopus were within the range of values legally defined as safe for human consumption. (c) 2004 Elsevier B.V. All rights reserved.

AB - Mercury concentrations were measured in tissues of 12 individuals of Octopus vulgaris, captured by the commercial fishery at two points along the Portuguese coast, Viana do Castelo and Cascais, in spring 2002. Concentrations were determined in six tissues (digestive gland, branchial hearts, gills, mantle, arms, and gonads). Correlations between mercury concentrations in different tissues were examined as were correlations between mercury levels and total length, mantle length, weight, gonadosomatic index, digestive gland index, and state of maturation. Differences between sexes and localities were analysed. The concentration of mercury in the digestive gland (Viana, 0.58 +/- 0.08, and Cascais, 3.43 +/- 2.57 mg/kg dry weight) was higher than in the other tissues, and values were generally similar to those recorded in previous studies on octopods. Arm muscle contained most of the mercury with 56% of the total body burden followed by the digestive gland with 31%, mantle with 11%, gills with 0.8%, gonad with 0.5%, and branchial heart with 0.2%. In all tissues, mercury concentrations were slightly higher in samples from Cascais than in Viana do Castelo, which is consistent with higher concentrations recorded in seawater at Cascais. Levels of mercury determined in octopus were within the range of values legally defined as safe for human consumption. (c) 2004 Elsevier B.V. All rights reserved.

KW - toxic element

KW - marine pollution

KW - cephalopods

KW - mercury

KW - octopus

KW - Northern Tyrrhenian Sea

KW - dietary-intake

KW - chemical form

KW - life-cycle

KW - selenium

KW - seafood

KW - cadmium

KW - Spain

KW - Gulf

KW - fish

U2 - 10.1016/j.scitotenv.2004.08.012

DO - 10.1016/j.scitotenv.2004.08.012

M3 - Article

VL - 340

SP - 113

EP - 122

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

IS - 1-3

ER -