catch per boat 中文意思是什麼

catch per boat 解釋
單船漁獲量
  • catch : vt (caught; caught)1 捕捉;逮著,捕獲,攔截;用網捕(鳥等);迷惑住。2 看到,看穿,看出,發覺。...
  • per :
  • boat : n 1 小舟,小船,(小)艇,(大船所載)救生艇;帆船,漁船。2 汽輪〈常指小汽輪〉;郵船,大輪船。3 ...
  1. ( 2 ) the fishing gears in hejiang section were divided into drift trammel net, set longline and jig according to the fishery status in hejiang section. " number of fishing boat day " was selected as the unit of fishing effort. the annual catch of the four kinds of fishing gears was get from multiplying catch per unit effort ( cpue ) by fishing effort

    ( 2 )根據合江江段的漁業現狀,將該江段的漁具分為三層流刺網、餌釣、滾鉤和其它偶見漁具四類,以「船?天」作為捕撈努力量的單位,用單位捕撈努力量漁獲量( cpue )乘以年捕撈努力量分別得到這四類漁具的年漁獲量,並將這四類漁具的年漁獲量相加估算出合江江段1999 - 2002年的漁獲量分別為104563 . 464kg 、 65564 . 231kg 、 123684 . 966kg和107285 . 272kg 。
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