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Acute Toxicity of Sodium Chloride, Nitrates, Ortho-Phosphates, Cadmium, Arsenic and Aluminum for Juveniles of the Freshwater Pearl Mussel: Margaritifera Margaritifera (L.1758)

University Bordeaux, UMR EPOC CNRS 5805, F-33120 Arcachon, France
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Author to whom correspondence should be addressed.
Received: 30 April 2020 / Revised: 17 June 2020 / Accepted: 19 June 2020 / Published: 23 June 2020
(This article belongs to the Special Issue New Insights into Impacts of Toxic Metals in Aquatic Environments)
The freshwater pearl mussel (FWPM) Margaritifera margaritifera (L.1758) is critically endangered in Europe and ecotoxicological studies on the species are scares. Here, 96 h acute toxicity tests were conducted at 16 °C with sodium chloride (NaCl), nitrates (NO3), ortho-phosphates (PO43−), cadmium (Cd), aluminum (Al) and arsenic (As) on 13- to 28-month-old post-parasitic juveniles. The experimental protocol was developed according to conditions described in a standard guide and was modified in order to assess toxicity thresholds for the Dronne River. Results showed that juveniles were tolerant to concentrations of Al, Cd, As, PO43−, NO3 and NaCl, largely higher than those found in the Dronne river, since 96 h EC50s (effective concentrations) were >954 µg/L for Al; >110 µg/L for Cd; >127 µg/L for As; >5.01 mg/L for PO43−; between 1000 and 1500 mg/L for NO3 and were 1.19 and 1.33 g/L for NaCl. Moreover, the use of a substrate in experiments was found not to affect juvenile responses and younger juveniles seemed more sensitive than older individuals. This study thus provides new data about the tolerance of FWPM to environmental pollution and suggests that pollutant concentrations in the river are significantly lower than levels affecting them. View Full-Text
Keywords: juvenile freshwater pearl mussel; nutrients; metals; sensitivity; acute toxicity test juvenile freshwater pearl mussel; nutrients; metals; sensitivity; acute toxicity test
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MDPI and ACS Style

Belamy, T.; Legeay, A.; Etcheverria, B.; Cordier, M.-A.; Gourves, P.-Y.; Baudrimont, M. Acute Toxicity of Sodium Chloride, Nitrates, Ortho-Phosphates, Cadmium, Arsenic and Aluminum for Juveniles of the Freshwater Pearl Mussel: Margaritifera Margaritifera (L.1758). Environments 2020, 7, 48. https://0-doi-org.brum.beds.ac.uk/10.3390/environments7060048

AMA Style

Belamy T, Legeay A, Etcheverria B, Cordier M-A, Gourves P-Y, Baudrimont M. Acute Toxicity of Sodium Chloride, Nitrates, Ortho-Phosphates, Cadmium, Arsenic and Aluminum for Juveniles of the Freshwater Pearl Mussel: Margaritifera Margaritifera (L.1758). Environments. 2020; 7(6):48. https://0-doi-org.brum.beds.ac.uk/10.3390/environments7060048

Chicago/Turabian Style

Belamy, Tiare, Alexia Legeay, Bruno Etcheverria, Marie-Ange Cordier, Pierre-Yves Gourves, and Magalie Baudrimont. 2020. "Acute Toxicity of Sodium Chloride, Nitrates, Ortho-Phosphates, Cadmium, Arsenic and Aluminum for Juveniles of the Freshwater Pearl Mussel: Margaritifera Margaritifera (L.1758)" Environments 7, no. 6: 48. https://0-doi-org.brum.beds.ac.uk/10.3390/environments7060048

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