Chronic ecotoxicity of Zn and Pb to the zebra mussel Dreissena polymorpha

Abstract

General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. AbstractOrganisms in contaminated aquatic ecosystems are often exposed to toxicants for their entire lifetime. In order to evaluate the ecological consequences of long-term exposure to metals, we studied the relation between short-term and long-term effects of Zn and Pb on the filtration rate and survival of zebra mussels (Dreissena polymorpha) in laboratory experiments. The results indicated that the effects of Zn and Pb on the filtration rate of D. polymorpha increased when the exposure time was increased, but it remained unclear whether the decrease in filtration rate is caused by accumulation of metals by the mussels or by the metal concentration in the water, or both. The capacity ofD. polymorpha to regulate the body concentration of the essential metal Zn decreased when the exposure time was increased, whereas the non-essential metal Pb could not be regulated by the zebra mussel. Not only the concentration of metal accumulated is of importance for survival, but also the rate of accumulation. It was concluded that the relation between short-term and long-term toxicity was different for each metal and could not be predicted from the results of the short-term experiments.

Impact of substratum type on attachment and survival of Dreissena polymorpha (Bivalvia)

“…This is compatible with a number of studies demonstrating toxicity of zinc and, especially, copper ions and compounds (e.g. DUDNIKOV & MIKHEEV 1964, KRAAK et al 1994, COTTRELL et al 2000. These metals are often used in various anti-fouling measures, such as coatings applied to susceptible underwater devices and constructions (RACE & MILLER 1992, GROSS 1994, DORMON et al 1996.…”

Cadmium, lead and their mixtures with copper: Paracentrotus lividus embryotoxicity assessment, prediction, and offspring quality evaluation

“…The biological effects of chemical mixtures are generally expected to be greater than those of the single component (Hernando et al 2003) so the assessment of multiple chemical toxic effects plays a key role in the risk evaluation. However, chemical combinations may also act antagonistically (Kraak et al 1994), complicating the identification of specific constituents responsible for the observed biological effects.…”

Quagga mussels (Dreissena bugensis) as biomonitors of metal contamination: A case study in the upper St. Lawrence River

“…Both copper and zinc are required micro-nutrients in animals, important for formation of enzymes and hemocyanin. Some studies indicate that zinc may be subject to internal regulation by mollusks except in highly contaminated environments (Luoma, 1989;Luoma and Rainbow, 2008;Kraak et al, 1994aKraak et al, , 1994b. Environmental exposures to biologically available zinc in the upper SLR may not be high enough to overwhelm these internal mechanisms.…”