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Studies - N°5Impact of arsenic and antimony
Accession Number 208QW-0008 Document Delivery 208QW: Document Delivery available Authors Mori C. Orsini A. Migon C. Author e-mail Address mori@univ-corse.fr Title Impact of arsenic and antimony contamination on benthic invertebrates in a minor Corsican river Source Hydrobiologia. 392(1):73-80, 1999. Abbreviated Source Hydrobiologia. 392(1):73-80, 1999. Copyright Publisher KLUWER ACADEMIC PUBL, SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS ISSN 0018-8158 Author Keywords As. Sb. Macroinvertebrates. Stream. KeyWords Plus Heavy-metal pollution. Community structure. Stream. Speciation. Toxicity. Abstract The chemical and biological characteristics of a Corsican river that drains contaminated waters and sediment from an abandoned realgar mine were studied. The concentrations of pollutants such as As and Sb were found to be notably high. For example, in the Presa River, downstream the realgar mine, the mean As concentrations in the water and in the sediment were 3010 mu g 1(-1) and 9450 mu g g(-1) respectively. Species richness and abundance of benthic invertebrates decreased downstream the As mine. The disappearance of oligochaetes, leeches and a rarity of mayfly populations have been evidenced. On the contrary, a large increase in species belonging to stoneflies and gastropods was found. Some species like Baetis cyrneus, Ephemerella ignita, Sericostoma clypeatum and Ibisia marginata were more sensitive to As and Sb concentrations while others species like Ancylus fluviatilis, Isoperla insularis, Hydropsyche cyrnotica, Caenis luctuosa and Silonella aurata were less sensitive. The benthic invertebrates show different reactions in this contaminated environment, which could be explained by their feeding behaviours and certain morphological characteristics. [References: 32] Language English Publication Type Article Subset Current Contents(R)/Agriculture, Biology & Environmental Sciences. CC Categories Aquatic Sciences in Current Contents(R)/Agricultural, Biology & Environmental Sciences. Entry Week 1999 week 29 Reprint Address Reprint available from: Migon C. Univ Paris 06, INSU, CNRS, Lab Phys & Chim Marines, BP 8, F-06230 Villefranche Sur Mer, France. Institution Reprint available from: Migon C Univ Paris 06, INSU, CNRS, Lab Phys & Chim Marines BP 8 F-06230 Villefranche Sur Mer France Univ Paris 06, INSU, CNRS, Lab Phys & Chim Marines F-06230 Villefranche Sur Mer France Univ Corse, Lab CEVAREN F-20250 Corte France Date de création : 14/02/2007 @ 09:55 Special !
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