Freshwater mussels of the order Unionida are a global conservation concern. Species of this group are strictly freshwater, sessile, slow-growing animals and, extremely sensitive to environmental ...
The live brown mussel, Perna perna L. (Fig. 1), was collected from natural mussel beds off Vizhinjam (8°22′25′′N 76°55′17′′E) open sea, Thiruvananthapuram, Kerala, India. The environmental conditions ...