Computerized acoustic fish assessment system

The quantitative assessment of fish stocks by acoustic signals is the most promising method of stock assessment for large areas of water. A prototype, SAS-I (stock assessment system) was put into operation April 1970 aboard the R/V Oregon II. It is a computer controlled data acquisition and reduction system which receives its source signal from the ship´s echo sounder and prints out in tabular form summation of target intensities for six depth regions and individual dimensions of each school encountered.