A comparison of fishing efficiency on bigeye tuna of two longline fishing gears .
两种延绳钓钓具大眼金枪鱼捕捞效率的比较。
Time series wavelet characters of the catch rate of bigeye tuna ( thunnus obesus ) caught by longline fishery in northwest indian ocean .
西北印度洋延绳钓大眼金枪鱼渔获率的时光序列小波特点。
Packed with ice , they try to catch a few tonnes of the more valuable sort of tuna , known as bigeye and yellowfin , while the bigger purse seiners like the playa de bakio , most of which are european , sweep up hundreds of tonnes of less valuable skipjack tuna outside somalia 's waters .