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Usability of the bivalves Dreissena polymorpha and Anodonta anatina for a biosurvey of the neurotoxin BMAA in freshwater ecosystems
2020
Lepoutre, A. | Hervieux, J. | Faassen, E.J. | Zweers, A.J. | Lurling, M. | Geffard, A. | Lance, E.
The environmental neurotoxin β-methylamino-L-alanine (BMAA) may represent a risk for human health in case of chronic exposure or after short-term exposure during embryo development. BMAA accumulates in freshwater and marine organisms consumed by humans. It is produced by marine and freshwater phytoplankton species, but the range of producers remains unknown. Therefore, analysing the phytoplankton composition is not sufficient to inform about the risk of freshwater contamination by BMAA. Filter-feeders mussels have accumulation capacities and therefore appear to be relevant to monitor various pollutants in aquatic ecosystems. We investigated the suitability of the freshwater mussels Dreissena polymorpha and Anodonta anatina for monitoring BMAA in water. Both species were exposed to 1, 10, and 50 μg of dissolved BMAA/L daily for 21 days, followed by 42 days of depuration in clean water. On days 0, 1, 7, 14, and 21 of exposure and 1, 7, 14, 21 and 42 of depuration, whole D. polymorpha and digestive glands of A. anatina were sampled, and the total BMAA concentration was measured. D. polymorpha accumulated BMAA earlier (from day 1 at all concentrations) and at higher tissue concentrations than A. anatina, which accumulated BMAA from day 14 when exposed to 10 μg BMAA/L and from day 7 when exposed to 50 μg BMAA/L. As BMAA accumulation by D. polymorpha was time and concentration-dependent, with a significant elimination during the depuration period, this species may be able to reflect the levels and dynamics of water contamination by dissolved BMAA. The species A. anatina could be used for monitoring water concentrations above 10 μg BMAA/L. D. polymorpha and A. anatina could be used to biomonitor BMAA in fresh water.
اظهر المزيد [+] اقل [-]Usability of the bivalves Dreissena polymorpha and Anodonta anatina for a biosurvey of the neurotoxin BMAA in freshwater ecosystems
2020
Lepoutre, A. | Hervieux, J. | Faassen, E.J. | Zweers, A.J. | Lurling, M. | Geffard, A. | Lance, E.
The environmental neurotoxin β-methylamino-L-alanine (BMAA) may represent a risk for human health in case of chronic exposure or after short-term exposure during embryo development. BMAA accumulates in freshwater and marine organisms consumed by humans. It is produced by marine and freshwater phytoplankton species, but the range of producers remains unknown. Therefore, analysing the phytoplankton composition is not sufficient to inform about the risk of freshwater contamination by BMAA. Filter-feeders mussels have accumulation capacities and therefore appear to be relevant to monitor various pollutants in aquatic ecosystems. We investigated the suitability of the freshwater mussels Dreissena polymorpha and Anodonta anatina for monitoring BMAA in water. Both species were exposed to 1, 10, and 50 μg of dissolved BMAA/L daily for 21 days, followed by 42 days of depuration in clean water. On days 0, 1, 7, 14, and 21 of exposure and 1, 7, 14, 21 and 42 of depuration, whole D. polymorpha and digestive glands of A. anatina were sampled, and the total BMAA concentration was measured. D. polymorpha accumulated BMAA earlier (from day 1 at all concentrations) and at higher tissue concentrations than A. anatina, which accumulated BMAA from day 14 when exposed to 10 μg BMAA/L and from day 7 when exposed to 50 μg BMAA/L. As BMAA accumulation by D. polymorpha was time and concentration-dependent, with a significant elimination during the depuration period, this species may be able to reflect the levels and dynamics of water contamination by dissolved BMAA. The species A. anatina could be used for monitoring water concentrations above 10 μg BMAA/L. D. polymorpha and A. anatina could be used to biomonitor BMAA in fresh water.
اظهر المزيد [+] اقل [-]Levels of lead and other metals in citrus alongside a motor road
1998
Caselles, J. (Ciudad Universitaria, Madrid (Spain). Escuela Tecnica Superior de Ingenieros Industriales, Dept. de Quimica Aplicada a la Ingenieria)
Effect of pH on the bioaccumulation of low level, dissolved methylmercury by rainbow trout (Oncorhynchus mykiss)
1991
Ponce, R.A. (Brooks Rand Ltd., Seattle, WA (USA)) | Bloom, N.S.
The effect of refuse incinerator fumes on the lead and cadmium content of experimentally exposed corticolous lichens
1998
Gombert, S. (Joseph Fourier Univ., Grenoble (France). Centre de Biologie Alpine) | Asta, J.
Mercury in precipitation and its relation to bioaccumulation in fish: a literature review
1998
Downs, S.G. (Imperial Coll. of Science, Technology and Medicine, London (United Kingdom). Imperial Coll. Centre for Environmental Technology) | Macleod, C.L. | Lester, J.N.
Accumulation of sulphur in and on Scots pine needles in the subarctic
1997
Manninen, S. (Oulu Univ. (Finland). Dept. of Biology and Botany) | Huttunen, S. | Kontio, M.
The accumulation of arsenic, bromine and iodine in needles of Norway spruce (Picea abies [L.] Karst.) at sites with low pollution
1997
Wyttenbach, A. (Paul Scherrer Inst., Villigen (Switzerland).) | Bajo, S. | Furrer, V. | Langenauer, M. | Tobler, L.
Mercury-induced root damage in spruce seedlings
1991
Godbold, D.L. (Goettingen Univ. (Germany, F.R.). Forstbotanisches Inst.)
Reduction of decomposition rates of Scots pine needle litter due to heavy-metal pollution
1991
Berg, B. (Swedish Univ. of Agricultural Sciences, Uppsala (Sweden). Dept. of Ecology and Environmental Research) | Ekbohm, G. | Soederstroem, B. | Staaf, H.