自1990年代起，科学家和区域性管理机构就已经开始了数据收集工作，通过对“食物链等级”上不同种群间的生态平衡变化进行定量研究。

Since the late 1990s, scientists and regional management organisations have used catch data to measure changes in the balance of species across so-called "trophic levels."

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由于生产管理决策的科学化，避免了盲目施用农药，促进了马铃薯主产区和下游广大区域生态环境的保护。

With the scientific management and reduction of pesticide application, the environment of potato planting region and the area of the lower of the Yangtze River will be improved.

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他说，“我们不知道是否需要一个区域性捕捞管理组织，我们所掌握的相关信息也很少。看起来，我们需要进一步了解分析海洋生态系统。”

"We are not in a position to know if we need a regional fishery management organization or not," he said. "we don't have nearly enough information."

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