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本文介绍了国外关于渔业资源估算中的声学技术,对可用来建立积分器读数(毫米)与鱼密度(每平方米内的鱼数目或每平方海里内的鱼重量吨数)之间的关系的两种不同的方法(现场标定法和直接标定法)也作了详细描述。
This paper presents the foreign acoustics techniques used in the estimation of fishery resources. The two techniques that can be used to establish the relationship between integrator readings (mm) and fish density (number of fish per square meter or number of fish per square nautical mile) Different methods (on-site calibration and direct calibration) are also described in detail.