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Volume 2, Pages 978-982
Short Communication

Heavy Metal Concentrations in the Spiders Pirata piraticus (Clerck, 1757) and Clubiona phragmitis (C.L. Koch, 1843) along the Scheldt Estuary (Belgium)

1Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
2Laboratory of Ecology, Biogeography and Nature Conservation, Ghent University, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
3Institute of Nature Conservation, Kliniekstraat 25, B-1070 Brussels, Belgium

Received 15 November 2001; Revised 8 February 2002; Accepted 15 February 2002

Copyright © 2002 Catarina Tojal et al.


Wetland ecosystems may be affected by deposition and accumulation of heavy metals. Metal concentrations in the spiders Pirata piraticus and Clubiona phragmitis living in marshes along the river Scheldt (Flanders, Belgium) were analyzed. The organisms were sampled on seven sites along a gradient from freshwater to brackish marshes. Except for lead, P. piraticus contained higher metal concentrations than C. phragmitis. This is related to physiological and ecological differences between species. No correlation was found between metal concentration in the organisms and soil total concentration.