(A) Sea trout 1b (52 cm TL for 1745 g) fished with spinning spoon in the Gardon River in 2007. White arrows highlight morphological characters allowing the identification as sea trout: straight margin of caudal fin and the presence of star-shaped black spots. (B) Resident Mediterranean trout (28 cm TL, 460 g) electro-fished in the Sorgue River, left tributary of the Rhône River. This relatively large river trout shows a typical forked tail, black and red spots on the flanks and the dorsal fin, a yellow-brown skin color.