From an inshore fisheries management perspective, the antonym of shellfish would be wetfish. However, this is in the context of how we describe everything that is "not shellfish", and isn't strictly an "opposite of shellfish", if one assumes that such a thing can really exist.
To try and define a more appropriate "true" antonym, I suppose you'd need a taxonomist who was prepared for a challenge!
The antonym for aquaculture is "wild capture" or "wild fishing." While aquaculture refers to the farming of aquatic organisms such as fish, shellfish, and seaweed in controlled environments, wild capture involves harvesting these organisms from their natural habitats without cultivation.
The plural of shellfish is shellfish.
ShellFish
shellfish
They are mollusks and not shellfish.
A Shellfish is can be a carnivore, herbivore, and omnivore depending on what kind of shellfish it is
Shellfish are invertebrates.. Fish are vertebrates. Essentially, clams, oysters and similar animals are shellfish.
A Shellfish is can be a carnivore, herbivore, and omnivore depending on what kind of shellfish it is
An edible shellfish is a cockrull.
Yes, an octopus is a shellfish. It is also a mollusk which is a shellfish.
No, shellfish do not have backbones because they have exoskeletons.
Yes, clams are shellfish, they have a shell.