noun
longline; longline fishing
A fishing method using a long main line with many baited hooks attached at intervals.
マグロ漁では延縄がよく使われる。
Longlines are often used in tuna fishing.
Compound of 延 (はえ, 'stretching') + 縄 (なわ, 'rope'). The reading はえ is a rare nominal form of the verb はえる (延える, 'to stretch').