title: Prediction of biological form at the adult stage of brown trout Salmo trutta using morphological or colorimetric criteria in migrating juveniles.
abstract: To assess the correlation between four visual morphological types based on body colour and shape (fario trout, FT; shiny fario, SFT; presmolt trout, PST; typical smolt ST) of juvenile brown trout Salmo trutta during downstream spring migration and the biological form at the adult stage (river or sea), mark-recapture experiments were carried out over a period of 23 years. Evidence is provided that the visual SFT type is not a relevant one, while objective colorimetric measurements using a black basin are the best way to determine the morphological type in migrating juveniles.
authors: INRA, UMR 0985 Ecology and Health of Ecosystems, 65 Rue de Saint-Brieuc, 35042 Rennes, Bretagne, France.
authors: J
authors: J
authors: Le Gentil
authors: S
authors: S
authors: Launey
authors: F
authors: F
authors: Marchand
authors: D
authors: D
authors: Ombredane
authors: J-L
authors: JL
authors: Bagliniere
mesh_terms: D025041:Animal Migration; D000818:Animals; D010860:Pigments, Biological / Q000502:physiology*; D012741:Sexual Maturation / Q000502:physiology*; D014337:Trout / Q000033:anatomy & histology* / Q000502:physiology*
chemical_list: D010860:Pigments, Biological