Furuno has introduced a new high-performance echo sounder incorporating newly-patented species identification technology.

Sounder offers species identification

The Identi-Fish function of Furuno’s FSS-3BB enables the user to distinguish between marks of fish with swim bladders, and those without. Photo: Furuno

The FSS-3BB Fish Species and Biomass sounder comes with the Identi-Fish function which allows the user to identify or distinguish between fish with and without swim bladders. It also incorporates a built-in 3kW dual-channel TruEcho CHIRP fish finder, which provides the highest level of detail.

This technology is based on a revolutionary analysis method combining high and low frequency echoes, with the Identi-Fish function capable of highlighting the difference between marks of fish with and without swim bladders.

This function consists of an echo display and a histogram mode. With two preset model curves available with the Identi-Fish histogram mode, it is possible to determine the species of fish with a very high degree of probability by comparing the curve of the detected object with those of the model data.

The reference specie are the swim bladder-less Atlantic mackerel and herring, which have a swim bladder. These generate divergent echo curves due to their major anatomical difference.

The FSS-3BB offers an overlay of depth line with a connection to a net sensor, geographical location of fish marks to connected navigational equipment, capability for screenshots and echo data to be recorded and re-played, support for dual monitor configuration, and a constant and stable display of echoes with the heave offset function when connected to a satellite compass.