Acute and chronic toxicity of cadmium on the copepod Pseudodiaptomus annandalei: A life history traits approach
Autor: | Sami Souissi, Pei-Jie Meng, Esther U. Kadiene, Jiang-Shiou Hwang |
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Přispěvatelé: | Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), Centre National de la Recherche Scientifique (CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut national des sciences de l'Univers (INSU - CNRS) |
Rok vydání: | 2019 |
Předmět: |
Male
Environmental Engineering Health Toxicology and Mutagenesis 0208 environmental biotechnology chemistry.chemical_element 02 engineering and technology Total population 010501 environmental sciences 01 natural sciences Population density Copepoda Lethal Dose 50 Sex Factors Animal science Pseudodiaptomus annandalei Toxicity Tests Acute Animals Environmental Chemistry Toxicity Tests Chronic Life History Traits Chronic toxicity 0105 earth and related environmental sciences Cadmium Developmental stage Dose-Response Relationship Drug biology Reproduction Public Health Environmental and Occupational Health General Medicine General Chemistry biology.organism_classification Pollution 020801 environmental engineering chemistry Bioaccumulation [SDE]Environmental Sciences Female Water Pollutants Chemical Copepod |
Zdroj: | Chemosphere Chemosphere, 2019, 233, pp.396-404. ⟨10.1016/j.chemosphere.2019.05.220⟩ Chemosphere, Elsevier, 2019, 233, pp.396-404. ⟨10.1016/j.chemosphere.2019.05.220⟩ |
ISSN: | 0045-6535 |
Popis: | We determined the effect of acute and chronic toxicity of cadmium (Cd) on Pseudodiaptomus annandalei, according to their developmental and reproductive stages. Firstly, to estimate the 50% lethal concentration (LC50), acute exposure of nauplii and copepodids to 20, 40, 80, 150, and 300 μg/L of Cd was tested, and the effects of 5 μg/L and 40 μg/L of Cd on copepod developmental rate was done. Female lifespan and number of nauplii produced were compared. Secondly, one generation of copepod was exposed to dissolved (WCd) and dietary (DCd) Cd, and sex-specific Cd uptake and population density were estimated. 96 h LC50 was 40 μg/L Cd for nauplii and 120 μg/L Cd for copepodids. Duration of copepod development was 3.5 days and 5.5 days longer than the control when exposed to 5 μg/L and 40 μg/L of Cd, respectively. Female lifespan in both treatments were 9 and 8 days shorter than in the control, respectively. Total number of nauplii produced per female lifespan was 440 (control), 450 (5 μg/L Cd), and 365 (40 μg/L Cd). Cd uptake in copepods increased from nauplii to adults when exposed to dietary Cd and decreased when exposed to dissolved Cd. Dietary uptake of Cd was significantly higher in males than in females and Cd uptake from water was higher in males than in females, but not statistically significant. The total population of copepods were significantly affected by Cd. The toxic effects of Cd in copepods appear to depend on developmental stage, sex, duration and uptake route. |
Databáze: | OpenAIRE |
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