大连水产学院学报
大連水產學院學報
대련수산학원학보
JOURNAL OF DALIAN FISHERIES UNIVERSITY
2009年
5期
429-435
,共7页
马文昭%杨伟超%张维纲%王刚%杨君德
馬文昭%楊偉超%張維綱%王剛%楊君德
마문소%양위초%장유강%왕강%양군덕
拖网%扇贝%惊扰棒%"雪爬犁"状
拖網%扇貝%驚擾棒%"雪爬犛"狀
타망%선패%량우봉%"설파리"상
trawl%scallop%alarm rod%"sleighing slope" shape
对虾夷扇贝捕捞网具进行了改良设计,即以"雪爬犁"架将传统贴地的拖网托离海底表面,以竖直交错排列的非金属惊扰棒取代传统的3道横排粗铁链,以专用的排石口排掉进入网内的石块,以拾贝板分拣、过滤并清洗扇贝.生产实践证明:采用改良设计的新型网具作业,具有降低扇贝破损率、提高采捕率、减轻拖网作业对海底生态环境的破坏程度、减少拖网耗能、捕捞的扇贝清洁无泥沙等优点.
對蝦夷扇貝捕撈網具進行瞭改良設計,即以"雪爬犛"架將傳統貼地的拖網託離海底錶麵,以豎直交錯排列的非金屬驚擾棒取代傳統的3道橫排粗鐵鏈,以專用的排石口排掉進入網內的石塊,以拾貝闆分揀、過濾併清洗扇貝.生產實踐證明:採用改良設計的新型網具作業,具有降低扇貝破損率、提高採捕率、減輕拖網作業對海底生態環境的破壞程度、減少拖網耗能、捕撈的扇貝清潔無泥沙等優點.
대하이선패포로망구진행료개량설계,즉이"설파리"가장전통첩지적타망탁리해저표면,이수직교착배렬적비금속량우봉취대전통적3도횡배조철련,이전용적배석구배도진입망내적석괴,이습패판분간、과려병청세선패.생산실천증명:채용개량설계적신형망구작업,구유강저선패파손솔、제고채포솔、감경타망작업대해저생태배경적파배정도、감소타망모능、포로적선패청길무니사등우점.
A new scallop fishing net was designed and shaped as "sleighing slop", leading to make the trawl not affixed to the seabed surface as the traditional one. In the new scallop fishing net, the traditional three horizontal thick chains were replaced by vertically staggered array of non - metallic rod alarm, and the rocks which fell into the nets were got rid of. The new pattern sorted, filtered and cleaned scallops through the picker boards as well. Due to the improvements, the trawl had the desired effects including the less damage of the scallop and the ecologi-cal environment on the seabed, higher collection rate, reduction in energy consumption, and elimination of the sed-iments in the scallop.