Validating morphometrics as a nonlethal tool to determine Arctic Grayling sex
William T. Samuel,
Lauren E. Yancy,
Elizabeth G. Hinkle
et al.
Abstract:ObjectiveSome Graylings (Thymallus spp.) possess an elongated dorsal fin and other morphological traits that can be sexually dimorphic as demonstrated in European Grayling T. thymallus. North American Arctic Grayling T. arcticus are assumed to follow these trends, but decisive evidence is lacking. This study aimed to determine whether sexually dimorphic characteristics, including posterior dorsal height, of Arctic Grayling in Interior Alaska can be used to accurately predict fish sex.MethodsWe used computer im… Show more
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