Detection of potential fishing ground for albacore tuna using synoptic measurements of ocean color and thermal remote sensing in the northwestern North Pacific
Detection of potential fishing ground for albacore tuna using synoptic measurements of ocean color and thermal remote sensing in the northwestern North Pacific
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DOI：
10.1029/2004gl021000
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发表时间：
2004-10
影响因子：
5.2
通讯作者：
M. Zainuddin;S. Saitoh;Katsuya Saitoh
中科院分区：
文献类型：
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作者：
M. Zainuddin;S. Saitoh;Katsuya Saitoh
为了描述长鳍金枪鱼的潜在渔场与其环境生物物理动态的关系，并澄清1998年厄尔尼诺和1999年拉尼娜对金枪鱼渔业的影响，使用了SST（TRMM/TMI和NOAA/AVHRR）和SSC（SeaWiFS）卫星图像以及渔获量数据。20°C的SST和0.3 mg m−3的SSC被认为是生产性渔场的良好指标。结果表明，冬季SST和SSC纬向平均位置之间的距离越小，CPUE越大。我们认为长鳍金枪鱼渔场与这些代理指标的汇合高度相关，这些指标可能会很好地发展。这些代表了叶绿素和温度锋的最佳组合，能够创造潜在的渔场。与1998年厄尔尼诺期间相比，1999年拉尼娜期间的代用指标似乎完全符合。
To describe potential fishing ground of albacore in relation to dynamics of bio‐physical of their environments, and to clarify impact of El Niño 1998 and La Niña 1999 on tuna fishery, satellite images of SST (TRMM/TMI and NOAA/AVHRR) and SSC (SeaWiFS) together with catch data were used. The 20°C SST and the 0.3 mg m−3 SSC were considered as good indicators of the productive fishing ground. Results showed that a small distance between latitudinal mean position of the SST and the SSC during winter term tended to significantly increase CPUEs. We suggest that albacore fishing grounds highly associated with the confluence of these proxy indicators where the fronts may well develop. These represent the meeting of optimum combination of chlorophyll and temperature fronts which capable of creating potential fishing ground. The proxy indicators appeared to well meet in La Niña 1999 in comparison to El Niño period in 1998.