With the highest in Jinzhou district and the lowest in Changhai county.

金州区最高，长海县最低；随着年龄的增长阳性率逐渐上升。

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Changhai county, which is made up of Changshan archipelago, is one of the important costal counties in north China.

由长山群岛组成的长海县，是我国北方重要的海岛县之一。

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This paper, based on a case study on Changhai county, analyzes its industrial structure and features, indicates an unstable fishing production and lack of competitiveness.

以长海县为例，通过对其产业结构及其特征的分析，结果表明：长海县渔业生产不够稳定，朝阳产业缺乏竞争力；

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