Hydroacoustic surveys undertaken in collaboration with industry have played a key role in the assessment of the southwest Nova Scotia and Bay of Fundy herring since 1998. In a project developed by our staff, herring fishing captains can record the depth, density and location of herring with the simple push of a button. The information, collected by a number of automated recording systems on fishing vessels, permits a quantitative assessment of herring distribution and abundance during the spawning and fishing seasons.
Hydroacoustic equipment is placed in the water. It is part of a high-tech system that records data from commercial seiners, giving scientists an estimate of fish biomass.
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