2020
DOI: 10.1002/etc.4857
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Comparing Trace Element Bioaccumulation and Depuration in Snails and Mayfly Nymphs at a Coal Ash–Contaminated Site

Abstract: We examined the bioaccumulation of essential (Cu, Fe, Se, and Zn) and nonessential (As and Hg) trace elements in 2 aquatic invertebrate species (adult snails and mayfly nymphs) with different feeding habits at the site of a coal ash spill. Differences in food web pathway, exposure concentrations, and biological processing affected bioaccumulation patterns in these species. Mayflies had higher body burdens, but snails had higher retention of most elements studied.

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Cited by 6 publications
(2 citation statements)
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“…Land snails possess an esophagus, and the crop for temporary storage and digestion of ingesta, but freshwater snails have a gizzard, which is a strong muscular stomach that helps in the final digestion of ingesta (Fig. 3 ) (Ponder et al 2019a ; Pouil et al 2020 ). Herbivores possess an oral cavity that employs amylase to process food material and eliminate harmful pathogens, allowing both to pass along with ingesta (Escobar-Correas et al 2019 ; GHOSE 1961 ).…”
Section: Anatomical and Physiological Features Of Snailsmentioning
confidence: 99%
“…Land snails possess an esophagus, and the crop for temporary storage and digestion of ingesta, but freshwater snails have a gizzard, which is a strong muscular stomach that helps in the final digestion of ingesta (Fig. 3 ) (Ponder et al 2019a ; Pouil et al 2020 ). Herbivores possess an oral cavity that employs amylase to process food material and eliminate harmful pathogens, allowing both to pass along with ingesta (Escobar-Correas et al 2019 ; GHOSE 1961 ).…”
Section: Anatomical and Physiological Features Of Snailsmentioning
confidence: 99%
“…High concentrations in some predators is not necessarily linked to trophic position and feeding habit, as retention capacity, assimilation, metabolization and exposure time may play an important role in bioaccumulation and biomagnification (Kirby et al, 2002;Maher et al, 2011). In general, the physiology, food preference and metabolic capacity of organisms are the fundamental factors that explain and help to understand the trophodynamics and biomagnification of As in aquatic food webs (Kato et al, 2020;Kirby et al, 2002;Pouil et al, 2020). However, some authors have indicated that As does not biomagnify in the same way as Hg.…”
Section: Arsenicmentioning
confidence: 99%