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.