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The effects of mercury on the dynamics of the peracarida community in a temperate coastal lagoon (Ria de Aveiro, Portugal).

Abstract：

:This study focuses on the impact of mercury on the dynamics and bioaccumulation patterns of suprabenthic peracarida community along a mercury gradient. Suprabenthic peracarida was negatively affected in terms of biomass, diversity and productivity. Mysids including Mesopodopsis slabberi dominated the community, presenting a regular distribution along the Hg gradient, so are considered tolerant species to mercury. Then, isopods, the second most abundant group, dominated in the most contaminated areas being considered also a tolerant group. Contrarily, amphipods were negatively correlated with higher Hg concentrations, dominating in the intermediate areas, thus are considered more sensitive species. In addition, isopods and amphipods were the taxa with higher mercury body burden, followed by mysids. This paper highlights the importance of suprabenthic peracarida as a vehicle of mercury transference through the estuarine trophic web since it is a main link between benthic and pelagic levels and an essential food resource for numerous fish species.

journal_name

Mar Pollut Bull

journal_title

Marine pollution bulletin

authors

Cardoso PG,D'Ambrosio M,Marques SC,Azeiteiro UM,Coelho JP,Pereira E

doi

10.1016/j.marpolbul.2013.04.004

subject

Has Abstract

pub_date

2013-07-15 00:00:00

pages

188-96

issue

1

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(13)00186-0

journal_volume

72

pub_type

杂志文章

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