I find that in north fishing ground, Yellow Sea warm current has an important influence on the location of chub mackerel fishing ground.

4鮐魚資源的變動同海洋環(huán)境有密切的關(guān)系，研究海洋環(huán)境對鮐魚資源的影響對制定合理的鮐魚漁業(yè)管理計劃至關(guān)重要每日国产在线观看论坛AV。

The relationship between in situ target strength and depth of chub mackerel was established by selecting the length composition of mackerel was larger than 90%. Results showed that the in situ target strength of chub mackerel was changed significantly depend on depth up to 8.7 dB. And it indicated that the measurement of in situ target strength of fish with swim bladder should be modified by the relationship of target strength and depth, especially in chub mackerel, it may be led to overestimate the standing crop to 7.4 times of the assessment.

將科學(xué)魚探所收錄到的白腹鯖聲學(xué)資料使用線性回歸來檢定現(xiàn)場標(biāo)物反射強(qiáng)度與樣本所在水深關(guān)系十二黄片国产在线视频，檢定結(jié)果顯示出白腹鯖在不同水深時所反射的現(xiàn)場標(biāo)物反射強(qiáng)度均會隨著深度改變，并且呈現(xiàn)負(fù)相關(guān)的顯著水準(zhǔn)(p.01)人人曰人人澡，現(xiàn)場標(biāo)物反射強(qiáng)度變動有8.7dB差異量免费精品男女视频，對白腹鯖魚群現(xiàn)存量會超估7.4倍的差異。

chub mackerel：尖頭花鯖;圓鯖

chub 白鰱 | chub mackerel 尖頭花鯖;圓鯖 | chum; chum bait; ground bait 撒餌

chub mackerel：白鮭

2474 茶 Tea | 2475 白鮭 Chub mackerel | 2476 茄克竹莢魚 Jack mackerel

chub mackerel：日本鯖

"蘭勃舵魚","chub" | "日本鯖","chub mackerel" | "軋頭,[牛]肩頸肉","chuck"