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How can interspecific interactions in freshwater benthic macroinvertebrates modify trace element availability from sediment?
- Source :
- Chemosphere, Chemosphere, 2020, 245, pp.125594. ⟨10.1016/j.chemosphere.2019.125594⟩, Chemosphere, Elsevier, 2020, 245, pp.125594. ⟨10.1016/j.chemosphere.2019.125594⟩
- Publication Year :
- 2020
- Publisher :
- HAL CCSD, 2020.
-
Abstract
- International audience; This study aimed to assess how bioturbation by freshwater benthic macroinvertebrates with different biological traits alone or in combination could modify trace elements (TE) fate between sediment and water, and if water TE concentration and animal TE content impair their body stores. Three macroinvertebrate species were exposed to TE contaminated sediment for 7 days: the omnivorous Echinogammarus berilloni (Amphipoda), the sediment feeding Tubifex tubifex (Oligochaeta) and the filter feeding Pisidium sp. (Bivalvia). Treatments were one without invertebrates (control), two with amphipods or mussels alone, and the combinations amphipod-mussel, and amphipod-mussel-worms. Water TE concentration increased significantly in 2 or 3 species mesocosms, concerning mainly Rare Earth Elements, Cr, U and Pb, known to be associated to the colloidal phase. By contrast, water soluble TE were not affected by animals. For both, amphipods and mussels, TE body content increased with the number of coexisting species. For amphipods, this increase concerned both, soluble and colloid-associated TE, possibly due to intense contact and feeding from sediment and predation on tubificids. TE bioaccumulation in mussel was less important and characterized by soluble TE, with water filtration as most plausible uptake route. Protein, triglyceride and Whole Body Energy Budget increased in amphipods with the number of coexisting species (probably by feeding on mussels’ feces and tubificids) whereas triglycerides declined in mussels (presumably filtration was disturbed by amphipods). This study highlights interspecific interactions as key drivers explaining both: TE bioturbation, depending on their water solubility or colloidal association, and the exposure/contamination of species through another species activity.
- Subjects :
- Geologic Sediments
Environmental Engineering
Amphipoda
Health, Toxicology and Mutagenesis
0208 environmental biotechnology
Fresh Water
02 engineering and technology
010501 environmental sciences
01 natural sciences
Macroinvertebrate
Rare earth element
Environmental Chemistry
Animals
14. Life underwater
Oligochaeta
0105 earth and related environmental sciences
biology
Chemistry
fungi
Public Health, Environmental and Occupational Health
Sediment
General Medicine
General Chemistry
Mussel
biology.organism_classification
Bivalvia
Pollution
Invertebrates
6. Clean water
020801 environmental engineering
Trace Elements
Benthic zone
Tubifex tubifex
Environmental chemistry
Bioaccumulation
Trace element
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
Bioturbation
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Water Pollutants, Chemical
Subjects
Details
- Language :
- English
- ISSN :
- 00456535
- Database :
- OpenAIRE
- Journal :
- Chemosphere, Chemosphere, 2020, 245, pp.125594. ⟨10.1016/j.chemosphere.2019.125594⟩, Chemosphere, Elsevier, 2020, 245, pp.125594. ⟨10.1016/j.chemosphere.2019.125594⟩
- Accession number :
- edsair.doi.dedup.....9f0911eac3f86796f4d0ef2fe58f3313