The tuna catch of the mainland coast of India is chiefly contributed
by incidental catches where as in Lakshadweep the effort is specifically
directed on tunas. Pole and line and troll line are the principal gears employed
for capture. Hand lines and drift gillnets are also rarely used. Agatti, Bitra,
Suheli and Minicoy are the major pole and line fishing centres which together
contribute 75% of the total tuna catc