Quote Originally Posted by rnvinc View Post
The "Fish ID algorithms" are based on the idea that the fish's air bladder is one of the most valid and reliable factors in sonar detection of fish ... Most all fresh water fish have air bladders and we know sonar will not travel thru air ...

It stands to reason that the bigger the air bladder = the bigger the fish ...

The previous Fish ID algorithms specified the smallest icon to be a 1lb bass, the medium icon to be a 2lb bass, and the large icon to be a 3lb bass ...

Echoes outside this criteria were not assigned a fish ID icon ...

Interestingly... The new software versions show a walleye looking fish ID icon ...

I haven't heard yet if the new icons also use new algorithms ...
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Another point is that the "Salt Water" selections of the "Water Type" menu under the Setup tab change the algorithms to instead assign the respective fish ID icon sizes from larger air bladder type fish species ...

Rickie
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