Identification guide
Reliable identification combines several features. Follow this sequence before comparing the result with a species profile or photo analysis.
Start with stable body features and assess colouring afterwards.
Look for elongated, deep-bodied or flattened forms and compare the proportions of head and body.
Upturned, terminal and downturned mouths reveal much about feeding behaviour and habitat.
Compare the number, position, shape and colour of dorsal, pelvic, pectoral and anal fins.
Check scale size, the lateral line, mucus layer, barbels and other clearly visible structures.
Stripes, spots and fin colours help, but can vary with water, age and season.
Juveniles may differ from adults. Hybrids can combine features from several species.
Show the whole fish from the side in even light without obscuring the fins. Head, mouth, tail and body markings should be sharp.
AI analysis is an estimate, not a scientifically or legally confirmed identification. Check protected status, closed seasons and minimum sizes using official sources.
Compare your observations with photo recognition or the species profiles.
