1. The results showed that the quantitative variations of Decapterus maruadsi and Pneumatophorus japonicus was synchronized in years, and was obviously correlated with the per haul production;
   结果表明，中上层鱼类蓝圆鲹和鲐鱼年间数量变动具有时间同步的特征，年均网次产量显著相关。

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