Fish identifier

How do you identify a fish from a photo?

Fish is the group where identification by eye fails most often, because colour shifts with water, light, age and breeding season — the same individual can be unrecognisable six months apart. A model trained on images handles that variation better than a key built on colour. The best shot is the whole flank, perpendicular to the lens, out of the water or through clean glass. SafaRoll covers 119 fish in the catalogue, freshwater and marine. For a catch you intend to release, shoot fast and put it back: identification happens afterwards, on the image.

What people often ask