Perna viridis can have economic, ecological and human health impacts. Economically, it can cause problems with water systems of industrial complexes by clogging pipes, increasing corrosion and reducing efficiency. It is also a problem for vessels: fouling can raise cost for owners due to increased maintenance, decreased fuel efficiency and.
Perna viridis is a large mussel, 80-100mm in length, occasionally reaching 165mm (Rajagopal et al. 2005). The shell has a smooth exterior surface characterised by concentric growth lines and slightly concave ventral margin. The shell is covered with greenish (variable in older mussels) periostracum; periostracum is generally intact in young ones and with patches peeled off in older ones.The.
The figures from FAO comprise the production of Mytilus viridis from Malaysia and Singapore and also production reported under the name Mytilus smaragdinus from the Philippines and Thailand; they all refer to the same species (Ref. 348).Commonly found byssally attached to various hard objects or substrates in protected bays and estuaries (Ref. 80041).
Perna viridis is a large species of mussel which ranges from 8-16 cm in length. There is no sexual dimorphism as regards their size or other external traits. The shell is smooth and elongated with concentric growth lines. The shell tapers in size as it extends to the anterior (Rajagopal et al., 2006). The ventral margin (hinge) of the shell is long and concave. The periostracum, a thin outer.
