本文選題：柔魚類 + 資源豐度�。� 參考：《中國農(nóng)業(yè)科技導(dǎo)報(bào)》2016年04期

【摘要】：利用2002-2014年的公海柔魚類(Ommastrephidae)漁場的漁獲資料結(jié)合同期海洋環(huán)境數(shù)據(jù),采用漁獲產(chǎn)量重心算法和廣義加性模型(GAM)方法,分析了北太平洋巴特柔魚(Ommastrephes bartramii)、西南大西洋阿根廷滑柔魚(Illex argentinus Castellanos)和東太平洋秘魯莖柔魚(Dosidicus gigas)三大公海柔魚類漁場重心的變化趨勢,探討了主要海洋環(huán)境因子(海表溫度、葉綠素a濃度和海流)對(duì)漁場的影響關(guān)系。結(jié)果表明:北太平洋柔魚漁場高產(chǎn)的最適海表溫度區(qū)間為15~20℃,最適葉綠素a濃度為0.20~0.60 mg/m3;西南大西洋的阿根廷滑柔魚漁場最適海表為9~14℃,最適葉綠素a濃度為0.60~1.65 mg/m3;東太平洋秘魯莖柔魚漁場最適海表溫度為18~23℃,最適葉綠素a濃度為0.16~0.40 mg/m3。GAM模型檢驗(yàn)結(jié)果顯示海表溫度與資源豐度有顯著的相關(guān)性,對(duì)中心漁場具有關(guān)鍵的指示作用。漁場位置一般出現(xiàn)在不同海流流隔的交匯區(qū),研究認(rèn)為可根據(jù)漁場變化的海況信息及時(shí)調(diào)整漁場的作業(yè)區(qū)域,提高生產(chǎn)效率。
[Abstract]:Using the catch data from Ommastrephida) fishing grounds for the period 2002-2014, combined with data on the marine environment over the same period, using the yield barycenter algorithm and the generalized additive model (GAM) method, In this paper, the variation trend of the bartramii (Ommastrephes bartramii), Illex argentinus Castellanosi (South West Atlantic) and Dosidicus gigas( Peru) in the North Pacific Ocean is analyzed, and the main marine environmental factors (sea surface temperature, sea surface temperature) are discussed. Effect of chlorophyll a concentration and current on fishing ground. The results showed that the optimum sea surface temperature range for high yield was 1520 鈩，

本文編號(hào)：1817783