Long-liner：
Long-line fishing is a commercial fishing technique. It uses a long line, called the main line, with baited hooks attached at intervals by means of branch lines called snoods. A snood is a short length of line, attached to the main line using a clip or swivel, with the hook at the other end. Long-lines are classified mainly by where they are placed in the water column. This can be at the surface or at the bottom. Lines can also be set by means of an anchor, or left to drift. Hundreds or even thousands of baited hooks can hang from a single line. Long-liners commonly target swordfish, tuna,halibut, sablefish and many other species

Purse seiner：
Tuna purse seining involves surrounding tuna schools with a net, impounding the fish by pursing the net, and drying up the catch by hauling the net so that the fish are crowded in the bunt and can then be brailed out.
As the purse seine catches fish above the thermocline, fish tuna and tuna-like fish inhabit in the surface and sub-surface zone (mixing area) are the target of this technique. They are, in tropical waters, juvenile yellow-fin, juvenile big-eye and skipjack, together with some small tuna-like fish such as frigate tunas, bonitos, etc. Those fish are generally feeding baitfish near surface. In temperate waters, they catch either small juvenile blue-fin tuna when they are feeding on baitfish or large blue-fin tuna while they surface for spawning activities. Also in temperate waters, purse seine is occasionally used to harvest albacore, generally during night when fish come to surface for feeding.

Trawler：
A fishing trawler, also known as a dragger, is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in mid-water at a specified depth. A trawler may also operate two or more trawl nets simultaneously (double-rig and multi-rig).

Krill fishing vessel：
Krill school is huge and krill is a very delicate crustacean. In order to keep it intact and fresh, the professional krill fishing vessel is fitted with pump system, which can pump the krill directly from the water.