Sex-specific and inter-species differences in the accumulation and distribution profile of metal(loid)s in crayfish specimens
Toxicology and Environmental Health Sciences, ISSN: 2233-7784, Vol: 13, Issue: 2, Page: 143-152
2021
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Article Description
Objective: Crayfish tissues are often used as bioindicators in the assessment of metal pollution and food safety risks. The current study evaluated sex-specific and inter-species differences in metal accumulation among two crayfish species (Procambarus acutus acutus and Faxonius virilis). Methods: A total of 77 biological specimens of both species were collected from the Ozark Fisheries aquaculture farm in Missouri. Concentrations of metals (Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sn, Sr and Zn) and a metalloid (As) in four crayfish tissues (exoskeleton, gills, hepatopancreas and muscle) were determined by ICP-OES. Results: In F. virilis, 15.4%, 30.8%, 7.7% and 30.8% of the 13 elements in the exoskeleton, gills, hepatopancreas and muscles differed (p < 0.05) among sexes, respectively. Similarly, the differences in metals accumulation between the male and female cohorts of P. a. acutus were 30.8%, 30.8%, 46.2% and 30.8% in the exoskeleton, gills, hepatopancreas and muscles, respectively. Pearson correlation analysis revealed significant (p < 0.05) associations between metals concentrations and the weight of samples, among the sexes and species. conclusion: Sex, species and tissue types are important considerations in metals bioaccumulation and distribution in crayfish.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85106033315&origin=inward; http://dx.doi.org/10.1007/s13530-021-00098-2; https://link.springer.com/10.1007/s13530-021-00098-2; https://link.springer.com/content/pdf/10.1007/s13530-021-00098-2.pdf; https://link.springer.com/article/10.1007/s13530-021-00098-2/fulltext.html; https://dx.doi.org/10.1007/s13530-021-00098-2; https://link.springer.com/article/10.1007/s13530-021-00098-2
Springer Science and Business Media LLC
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