Refers to the amount or volume of fish caught, often used in fishing industry contexts.
今年の漁獲高は去年より少なかった。
This year's catch was smaller than last year's.
漁獲高の減少が問題になっている。
The decline in fish catches has become a problem.
Compound of 漁獲 (gyokaku, 'fishing catch') and 高 (daka, 'amount, volume').