drift net fishing 中文意思是什麼
drift net fishing
解釋
流網漁法-
Based on the analysis of the fishing capture monitoring data, which obtained from 5 deep water drift net fishery resources investigation boats from april 1998 to march 2001, the results indicated that the psenopsis anomala which took accounted for 8. 68 % ~ 27. 16 % of the total catch, was one of the three preponderant species in the northern part of the east china sea and southern part of the yellow sea. ( branchiostegidac ranked first, followed by the psenopsis anomala or argyrosonus altetnate ). the yearly quantity distribution concentrated in summer and autumn, and reached the peak in latter summer to early autumn
摘要根據對5艘深水流網資源信息船1998年8月~ 2001年3月連續漁撈調查資料進行分析研究，結果表明：刺鯧是本海域深水流網漁業的三大優勢種之一（方頭魚占首位，刺鯧和白姑魚年間變動量相互交替） ，占年總漁獲量的8 . 68 % ~ 27 . 16 % ；周年數量分佈集中在夏、秋季，全年數量最高值出現在夏末初秋。 -
The number of fishing boat from 1999 to 2002 is 159, 100, 107 and 116, respectively. the number of different fishing boat and the species composition of different fishing gears were calculated also. furthermore, the structure of drift trammel net, set longline of baited hooks and jig and their fishing methods were described
1999 - 2002年各年的作業漁船數分別為159隻， 100隻， 107隻和116隻，並統計了各年使用不同漁具的漁船數目以及不同漁具的漁獲物種類，另外還對三層流刺網、餌釣和滾鉤等主要漁具的結構和漁法進行了描述。 -
( 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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