Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.2/3627
Título: Temporal characterization of mercury accumulation at different trophic levels and implications for metal biomagnification along a coastal food web
Autor: Cardoso, Patricia
Pereira, Eduarda
Duarte, Armando
Azeiteiro, Ulisses
Palavras-chave: Mercury
Temporal variation
Food web
Biomagnification
Environmental quality
Food safety
Data: 2014
Editora: Elsevier
Resumo: The main goal of this study was to assess temporal mercury variations along an estuarine food web to evaluate the mercury contamination level of the system and the risks that humans are exposed to, due to mercury biomagnification. The highest mercury concentrations in the sediments and primary producers (macrophytes) were observed during winter sampling. Instead, the highest mercury concentrations in the water, suspended particulate matter as well as in the zooplanktonic and suprabenthic communities were observed during summer sampling. Evidences of mercury biomagnification along the food web were corroborated by the positive biomagnification factors, particularly for omnivorous macrobenthic species. Comparing the mercury levels at distinct components with several environmental quality criteria it suggests that sediments, water and edible species (e.g., bivalve Scrobicularia plana and the crustacean Carcinus maenas) presented higher mercury levels than the values accepted by legislation which represent a matter of concern for the environment and human health.
Peer review: yes
URI: http://hdl.handle.net/10400.2/3627
DOI: 10.1016/j.marpolbul.2014.08.013
ISSN: 0025-326X
1879-3363
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0025326X14005438
Aparece nas colecções:Ambiente e Sustentabilidade - Artigos em revistas internacionais / Papers in international journals
Ciências e Tecnologia - Artigos em revistas internacionais / Papers in international journals

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