What Are the primary Types ofFish?
Fish are classified into three main forms based mostly on their skeletal framework and respiratory methods:

Bony Fish (Osteichthyes): This classification involves species like salmon, trout, and cod, accounting for around ninety six% of all fish species. Their skeletons are made of bones, and they may have operculum (gill addresses) for respiratory.

Cartilaginous Fish (Chondrichthyes): Fish like sharks, rays, and skates slide into this group, characterised by skeletons made from cartilage. They ordinarily have a number of gill slits with out handles.

Jawless Fish (Agnatha): Primitive fish like lampreys and hagfish belong to this category. Compared with other fish, they absence jaws and rely upon suction or other exclusive feeding methods.