The toxicity of copper to the adult and early life stages of the freshwater clam,Corbicula manilensis

Harrison, F.L.; Knezovich, John P.; Rice, David W.

doi:10.1007/bf01055649

Cited by 47 publications

(14 citation statements)

References 22 publications

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“…It has been demonstrated that effective concentrations decrease during chronic exposure; e.g. for the freshwater mussel Corbicula manilensis the LCs0 for Cu decreased with increasing exposure time (Harrison et al, 1984). Kenaga (1982) calculated acute-chronic ratios (ACR; the acute ECs0 divided by the chronic ECs0) for a number of substances and organisms and demonstrated that for Daphnia magna the ACRs for Pb and Cd were much higher than for Zn and Cu, possibly because Cu and Zn are essential metals, whereas Pb and Cd are not known to have any biological function.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 1994

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 1994

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“…Most previous investigators of growth reductions in Corbicula as a response to inadequate environmental settings concluded that this biological trait may constitute a useful biomarker of stress (e.g., Britton et al, 1979;Harrison et al, 1984;Belanger et al, 1986aBelanger et al, , b, 1990Belanger, 1991). Our results confirm this appreciation and show that growth-hindering conditions, which in this case are associated with enhanced levels of pollution, also affect survival of the juveniles, the condition index of adults, bioaccumulation levels, and the general size-structure of the population.…”

Section: Discussionmentioning

confidence: 98%

Condition index and growth rates of field caged Corbicula fluminea (Bivalvia) as biomarkers of pollution gradients in the Paraná river delta (Argentina)

Cataldo

Boltovskoy

Stripeikis

et al. 2001

Aquatic Ecosystem Health &Amp; Management

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In 1995-1996, Corbicula fluminea was collected at monthly intervals at two sites in the delta of the lower Paraná river (Argentina), at the confluence of the San Antonio and Vinculación rivers, and from the Paraná de las Palmas river close to its outlet into the Río de la Plata estuary. The San Antonio site is located in the vicinity of sources of industrial and sewage effluents, whereas the more remote Paraná de las Palmas river sampling location is considerably less polluted. Growth rates of caged individuals at the two sites also monitored during the same period, and Cu, Cd, Pb and Zn were measured monthly in the water and in tissue of animals. Throughout the year concentrations of all metals in water, as well as Pb and Zn in tissue, varied irregularly and their levels at the two sites were roughly similar; on the other hand, Cu and Cd in tissue of animals from the polluted site were consistently and significantly higher than in those from the remote site. Changes in the size-frequency of clams from Paraná de las Palmas river throughout the period surveyed clearly indicated a highly structured population with a single well defined reproduction period in October-November. In contrast, shell lengths at San Antonio changed very little throughout the 13 month period, with over 88% of the clams varying between 18 and 20 mm in length; no discernible cohorts were recorded. Growth rates of caged clams were very significantly lower at the polluted site, with the remote site latter yielding comparable values to those obtained from the remote site cohort analysis data. Highest growth rates (around 10 mm) were attained by the smallest (about 7-8 mm) clams reared in Paraná de las Palmas river waters, whereas 23 to 25 mm organisms maintained in San Antonio waters grew only 2 to 3 mm in the same period. Of the 57 animals which survived throughout the caging experiment, those below 10 mm at the outset increased, on average, 8.2 mm in length after 13 months, whereas clams less than10 mm in length grew only 4.2 mm. The condition index (i.e., dry tissue weight divided by shell length) of clams from San Antonio was consistently about 50% lower than that of clams from the Paraná de las Palmas river. It is concluded that delayed growth, poorer condition index, and the abnormal population structure at San Antonio are due to enhanced pollution in this area as compared with the Paraná de las Palmas river, and that all three traits constitute a more useful biomarker of environmental stress than chemical analyses of contaminants.

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“…The Asiatic clam, Corbicula fluminea, has been adequately qualified as a bio-indicator of pollutants (Johnston & Hartley, 198 1;Foe & Knight, 1985 and has recently been given increased attention for use in biomonitoring and toxicity testing (Harrison et al, 1984;Belanger, 1991;Belanger et al, 1986a, b;Farris, 1986;Farris et al, 1988;Doherty, 1990). The Asiatic clam, Corbicula fluminea, has been adequately qualified as a bio-indicator of pollutants (Johnston & Hartley, 198 1;Foe & Knight, 1985 and has recently been given increased attention for use in biomonitoring and toxicity testing (Harrison et al, 1984;Belanger, 1991;Belanger et al, 1986a, b;Farris, 1986;Farris et al, 1988;Doherty, 1990).…”

Section: Introductionmentioning

confidence: 99%

Molluscan cellulolytic activity responses to zinc exposure in laboratory and field stream comparisons

et al. 1994

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Changes in cellulolytic activity of Asiatic clams (Corbiculafluminea) and snails (Mudalia dilatata) were monitored throughout 30-d exposures to constant additions (0.0, 0.025, 0.05, 0.50, and 1.0 mg l-') of zinc (Zn). All exposures of 0.05 mg Zn l-' or greater significantly reduced enzyme activity (exo-and endocellulase) in both molluscs as early as 10 d following exposures in outdoor laboratory streams incorporating New River water as diluent. More sterile laboratory stream exposures were less consistent in yielding quantifiable differences that could be attributed to metal induced stress apart from effects of nutritional stress. Tests conducted under natural field conditions during all seasons did not differ significantly with respect to changes in annual energetics of either clams or snails. However, evidence of differing uptake routes, with respect to two ecologically and physiologically distinct molluscs, was apparent in bioaccumulation, growth, and enzyme activity throughout exposure and following 60-d recovery.

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The toxicity of copper to the adult and early life stages of the freshwater clam,Corbicula manilensis

Cited by 47 publications

References 22 publications

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

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

Condition index and growth rates of field caged Corbicula fluminea (Bivalvia) as biomarkers of pollution gradients in the Paraná river delta (Argentina)

Molluscan cellulolytic activity responses to zinc exposure in laboratory and field stream comparisons

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