fish & seafood directory aquaculture directory seafood trading board commercial fishing & seafood seafood industry by country fish photos & info marine services directory international trade suppliers to the fishing & seafood industries exhibitions & fairs seafood & marine industry news country directories...
fish & seafood directory aquaculture directory seafood trading board commercial fishing & seafood seafood industry by country fish photos & info marine services directory international trade suppliers to the fishing & seafood industries exhibitions & fairs seafood & marine industry news country directories...
whales (mysticeti) are characterized by baleen, a sieve-like structure in the upper jaw made of the tough, structural protein keratin. the baleen is used to filter plankton from the water. baleen whales are also characterized by two blowholes. the toothed whales (odontoceti) have teeth and prey on fish...