Behavioural and biochemical alterations in gammarids as induced by chronic metallic exposures (Cd, Cu and Pb): Implications for freshwater biomonitoring

Autor: J.D. Lebrun, Eric Gismondi
Přispěvatelé: Hydrosystèmes continentaux anthropisés : ressources, risques, restauration (UR HYCAR), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Fédération Île-de-France de Recherche sur l'Environnement (FIRE), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Freshwater and Oceanic Sciences Unit of reSearch (FOCUS), Laboratory of Oceanology, Université de Liège-Université de Liège, Laboratory of Animal Ecology and Ecotoxicity (LEAE-CART), Université de Liège
Rok vydání: 2020
Předmět:
Male
Environmental Engineering
Health
Toxicology and Mutagenesis
0208 environmental biotechnology
Population
Phosphatase
Zoology
Fresh Water
Metal toxicity
02 engineering and technology
010501 environmental sciences
Biology
01 natural sciences
Acclimatization
Biomonitoring
Respiration
Animals
Environmental Chemistry
Amphipoda
education
0105 earth and related environmental sciences
education.field_of_study
Long-term exposure
Public Health
Environmental and Occupational Health
Gammarus fossarum
Physiological adaptation
General Medicine
General Chemistry
Pollution
6. Clean water
Gender-dependent effects
020801 environmental engineering
Lead
Integrated biomarker response (IBR)
Metals
Female
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Digestion
Moulting
Copper
Water Pollutants
Chemical
Biological Monitoring
Cadmium
Zdroj: Chemosphere
Chemosphere, Elsevier, 2020, 257, pp.127253. ⟨10.1016/j.chemosphere.2020.127253⟩
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2020.127253
Popis: International audience; In freshwater species, metal toxicity is usually assessed through short-term exposures, hence limiting the practical usefulness of biomarkers for monitoring long-term impacts on wildlife populations. This study investigates the biological alterations elicited by chronic metallic exposures in Gammarus fossarum using multi-level biomarkers. In aquaria, gammarids were exposed for 10 weeks to field-realistic concentrations of Cd, Cu or Pb (0.25, 1.5 or 5.0 mu g/L). At the individual level, behavioural traits (respiration, locomotion and feeding) were compared between naive and chronically-exposed gammarids. At the cellular level, enzymatic activities involved in digestion, moult and cell stress were monitored after 2, 6 and 10 weeks of exposure in males and females to consider the temporal feature of their responses. Results showed that the inhibitory effects of Cd and Pb on respiration and locomotion disappeared in chronically-exposed gammarids, reflecting acclimation to maintain these processes, unlike Cu. Chronic Cu- and Pb-elicited feeding inhibition was associated with the inhibitions of digestion enzymes. Chitobiase was inhibited by Cu in males and, by Cd and Pb in females, suggesting gender-dependent disturbances in moulting. In both genders, Cd generated cellular stress by stimulating acidic phosphatase and peroxidase activities. To conclude, such cellular impairments and alterations in individual performances are likely to disturb individual growth, population dynamics and litter decomposition in the long-term. Besides, obtaining biological responses, common to metals or specific to a metal or a gender, supports the development of biomarkers highlighting long-term impacts of metals on the health of organisms and their associated ecological functions in natural environments. (C) 2020 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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