DSpace
 
  Repositório Institucional da Universidade de Aveiro > Ria de Aveiro > Ria - Artigos >
 Estimation of Cu, Cd and Hg transported by plankton from a contaminated area (Ria de Aveiro)
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/11171

title: Estimation of Cu, Cd and Hg transported by plankton from a contaminated area (Ria de Aveiro)
authors: Monterroso, P.
Abreu, S. N.
Pereira, E.
Vale, C.
Duarte, A. C.
keywords: Cadmium
Contaminated sites
Copper
Export
Plankton
Mercury
Trace elements
issue date: 2003
publisher: Elsevier
abstract: The efficiency of plankton to sorb/incorporate anthropogenic metals discharged in a contaminated area of the Ria de Aveiro and the amount exported to the rest of the lagoon were examined. Suspended particulate matter and material collected in 63 and 200 μm plankton nets were sampled hourly on a semi-diurnal spring tidal cycle. The collected material was analysed for total Cu, Cd, Hg and Pb. Higher metal concentrations were registered in material collected during the ebb period, which indicates their incorporation into the plankton biomass previously transported into the area during the flood period. On the basis of the water volume variation, plankton biomass associated to the 63 and 200 μm nets and metal concentrations, mass balances were calculated for Cu, Cd and Hg. Clearly, metals associated with plankton were exported from the contaminated area to the rest of the lagoon. The net exported metals (63 μm net) were 223–336% of the imported metals corresponding to 2.4 g of Cd, 67 g of Cu, and 11 g of Hg, over the spring tidal cycle.
URI: http://hdl.handle.net/10773/11171
ISSN: 1146-609X
publisher version/DOI: http://dx.doi.org/10.1016/s1146-609x(03)00033-x
source: Acta Oecologica
appears in collectionsPT Mar - Artigos
Ria - Artigos

files in this item

file description sizeformat
Estimation of Cu, Cd and Hg transported.pdf296.38 kBAdobe PDFview/open
Restrict Access. You can Request a copy!
statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! RCAAP OpenAIRE DeGóis
ria-repositorio@ua.pt - Copyright ©   Universidade de Aveiro - RIA Statistics - Powered by MIT's DSpace software, Version 1.6.2