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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
Dernière modification : 16/02/2007 @ 12:31
Catégorie : Studies
Page lue 1504 fois


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