People credited with this unit standard are able to: demonstrate knowledge of, the features, habitat, and geographical locations Greenshell? mussel; the anatomical features of the Greenshell? mussel; the feeding, reproduction and life cycle of the Greenshell? mussel; the factors that impact on the growth of the Greenshell? mussel; and abnormal features and/or behaviours that could indicate potential Greenshell? mussel health issues.