Although birds do not have teeth, swans have beaks with serrated edges that look like small jagged 'teeth' as part of their beaks used for catching and eating aquatic plants and algae, but also molluscs, small fish, frogs and worms. Source: Internet
Also, farmed molluscs themselves can become dominate predators and/or competitors, as well as potentially spread pathogens and parasites. Source: Internet
Although all sea ducks readily feed on shallow-water molluscs, no Western Atlantic bird species seems to have been as dependent on such food as the Labrador duck. Source: Internet
For regulatory purposes it is often narrowly defined as filter-feeding molluscs such as clams, mussels, and oyster to the exclusion of crustaceans and all else. Source: Internet
Invertebrates used as food included insects such as the Bogong moth and larvae collectively called witchetty grubs and molluscs. Source: Internet
By industry Aquafarming * Aquaculture farming of aquatic organisms such as fish, crustaceans, molluscs and aquatic plants. Source: Internet