Abstract text

The present invention relates to the field of monitoring systems, and specifically, to monitoring systems for measuring fish size, fish quantity and total fish biomass in a fish farming operation. The fish are located in a seacage in a body of water. A mobile platform is placed on the surface water above the seacage and is moved in a transect pattern above the seacage. A transducer with associated transceiver attached to the mobile platform generates an echo pattern that is converted by a processor into estimates relating to fish size, fish quantity, and total fish biomass data of the fish located in the seacage.