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Response of the Mediterranean sponge Chondrosia reniformis Nardo to copper pollution

AuthorsCebrian, Emma ; Agell, Gemma ; Martí, Ruth; Uriz, María Jesús
KeywordsCopper pollution
Heat-shock proteins
Clearance rates
Issue Date2006
CitationEnvironmental Pollution 141: 452-458 (2006)
AbstractWe examined the effects of exposure to copper pollution on the Atlanto-Mediterranean sponge Chondrosia reniformis. We transplanted sponges from an unpolluted control area to a harbour with a moderately high concentration of copper and measured several biological sponge variables. No effect of this habitat was detected on sponge growth, shape, heat-shock protein expression or metal accumulation. However, a decrease in the clearance rate, an increase in the collagen/cell rate (due to a decrease in the cellular components) and a lower survival rate after 4 months of the sponges transplanted to the harbour was observed. We suggest that copper may alter the sponge physiology, by reducing pumping capacity, which may ultimately lead to sponge death. Consequently, copper pollution exerts strong negative effects on this organism.
Description7 páginas, 6 figuras, 1 tabla
Publisher version (URL)http://dx.doi.org/10.1016/j.envpol.2005.08.070
Appears in Collections:(CEAB) Artículos
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