Journal
ECOTOXICOLOGY
Volume 22, Issue 8, Pages 1278-1288Publisher
SPRINGER
DOI: 10.1007/s10646-013-1115-4
Keywords
Mercury contamination; Mysids; Mesopodopsis slabberi; Bioaccumulation; Biomagnification; Population dynamics; Life span
Categories
Funding
- FCT (Fundacao para a Ciencia e Tecnologia) [FCOMP-01-0124-FEDER-010598, FCT PTDC/MAR/101906/2008]
- POPH
- QREN-Promotion of scientific job
- European social fund
- national funds of MEC
- Fundação para a Ciência e a Tecnologia [PTDC/MAR/101906/2008] Funding Source: FCT
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The mercury bioaccumulation and population dynamics of the mysid Mesopodopsis slabberi was assessed along a mercury gradient in Ria de Aveiro (Portugal). M. slabberi is one of the most important mysid species in European temperate coastal shallow waters playing a key ecological role. Nevertheless, no references were found concerning the possible consequences of the Hg on the trophodynamics of these coastal ecosystems. M. slabberi showed a clear bioaccumulation along the Hg gradient and through life, with mature females reaching the highest concentrations. In terms of population structure, higher densities and biomasses of M. slabberi were assessed in the most contaminated areas contrarily to the least polluted areas. Despite the mercury accumulation in its tissues no strong negative effects on the structure and population dynamics of the species were observed. However, mysids might be important in the transfer of metals from the sediments and zooplankton to higher trophic levels such as fishes, most of them with commercial interest.
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