Fishing reel opening the face of the reel allowing the line to run off the side of the spool when released in the cast. The centrepin reel is historically and currently used for coarse fishing. Instead of a mechanical drag, the angler's thumb is typically used to control the fish. Fishing in the margins for carp or other heavy fish with relatively light tackle is very popular with a 'pin' and is often used for 'trotting' a method in which a float on the line suspends a bait a certain depth to flow with the current along the waterway. During the 1950s
Seine fishing shoal tightly together. When used to catch fish that shoal together with other species, or when used in parallel with fish aggregating devices, the percentage of by-catch greatly increases. Use of purse seines is regulated by many countries. In Sri Lanka, using this type of net within 7 kilometers of the shore is illegal. However, they can be used in the deep sea, after obtaining permission from authorities. Purse seine fishing can have negative impacts on fish stocks because it can involve the bycatch of non-target species and it can put too much pressure on fish stocks. The power block