There is a such thing as ocean hunting in WOW its just not called ocean hunting. its called swimming underwater beating up everything you find. There is a hunter class, but they have no special abilities regarding water, nor special underwater pets.
An underwater bubble blower.
Almost any camera can be used underwater if you buy a special case, called a skin, for it. Some Nikon cameras have special settings for underwater photography, making it easier to capture good pictures with the unusual lighting conditions underwater.
The saddle used on a Bronco is called a 'Bronc Saddle'. There really is no other special name for the piece of equipment.
Point of connection to the electrical system for a particular piece of equipment, normally reserved for the exclusive use of the equipment, sometimes called a dedicated circuit.
An underwater bomb is called a 'depth charge.
A turbidity current
There are several brands that have special lines for golf clubs equipment. Nike has their own that is called NIke Golf, the most famous user of that line being Tiger Woods. Callaway is another famous brand.
Torpedo...
diver
its called alge
There is no such thing as an actual tornado underwater, as a tornado is, by definition, a vortex of air. However, a vortex underwater is called a whirlpool.