渔业生产是山东省长岛县国民经济的基础和支柱。去年全县水产品产量达8万吨,总产值1.6亿元,渔业直接创税收占全县财政收入近50％。长岛县近年来认真实施科技兴渔的方针,本着周期短、见效快的原则,狠抓水声技术推广工作,取得了一定的成绩,全 Fishery production is the foundation and pillar of the national economy in Long Island County, Shandong Province. Last year, the county’s aquatic product output reached 80,000 tons, with a total output value of 160 million yuan. The direct fishery tax accounts for nearly 50% of the entire county’s fiscal revenue. In recent years, Long Island County conscientiously implement the principle of rejuvenating the country by science and technology. In line with the principle of short cycle and quick response, we paid close attention to the promotion of underwater acoustic technology and achieved some success.