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Research on acoustic characteristics and acoustical culture for large yellow croaker

Abstract

大黄鱼是我国特有的优质、高值经济鱼类,是目前中国网箱养殖的主要鱼类之一。近年来,随着海洋运输、港口建设、水下爆破工程作业等日益频繁,浅海网箱养殖环境日益恶化,大黄鱼养殖出现死亡率高、生长缓慢、成熟个体小型化、抗逆性差的种质退化现象,严重制约了大黄鱼养殖业的健康发展。本课题拟从鱼类声学角度出发,深入分析大黄鱼的声学特性,探索在开放海域中开展大黄鱼声学驯养的方法,有效改善大黄鱼种群质量,为大黄鱼养殖提供一种更加健康、高效和安全的生产模式。 研究主要内容: 1、采用水下光学、声学相结合的监测手段,应用短时傅立叶变换、连续小波变换等时频联合分析的信号处理方法提取大黄鱼发声信号参数,研究不同成长阶段...Large yellow croaker is a kind of high-quality, high-value fish, and is one of the major cage-cultured fish in China. In recent years, with the rapid development of the marine transportation, port construction and underwater engineering, the cage-cultured environment in shallow sea is increasing deterioration. As a result, The genetical characterization decline of cage-cultured large yellow croake...学位:博士后院系专业:海洋与环境学院环境科学与工程系_环境科学学号:201017005

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