CONTINUOUS, CONTINENTAL-SHELF-SCALE MONITORING OF FISH POPULATIONS AND BEHAVIOR

摘要

Areal population density and detailed behavior of fish schools and theirinteraction are continuously monitored over continental-shelf-scale areasspanning thousands of square kilometers by ocean acoustic-waveguide remotesensing. In some embodiments, the capacity of certain geophysicalenvironments, such as contininental shelves, islands, etc. to behave asacoustic waveguides is utilized; sound propagates over long ranges via trappedmodes that suffer only cylindrical spreading loss, rather than the sphericalloss suffered in conventional sonar approaches.