Robuta

https://www.usgs.gov/publications/metal-concentrations-zebra-mussels-and-sediments-embayments-and-riverine-environments Metal concentrations in zebra mussels and sediments from embayments and riverine environments of... Concentrations of 14 metals were studied in the soft tissues of zebra mussels (Dreissena polymorpha) and sediments from 16 Great Lakes embayments and riverine... zebra mussels https://www.govinfo.gov/app/details/CZIC-gc97-8-c8-c66-1981-pt-1 Connecticut Embayments Study - CZIC-gc97-8-c8-c66-1981-pt-1 | Content Details | GovInfo