Bycatch also means the accidental capture of non-targeted species such as dolphin, marine turtles and seabirds while fishing. Every year, through the use of gillnets, on longlines and in trawls, millions of pound of non-target fish species and other marine life are caught and often discarded back into sea either dead or dying. This happens because modern fishing gears used, efficient at catching the desired fish species, are often undetectable by sight and extremely strong to catch anything in its path.