Using an established morphometric model to assess field-based sexing of Arctic grayling

Paul Lecheung-Singleton et al.
Wed, 22 Apr 2026 18:29:41 PDT

Arctic grayling display sexual dimorphism in dorsal fin shape and size. A recent study established a reliable model for fish sex determination using morphometric measurements, but its application is time-consuming. Our objective is to assess the accuracy of field-based fish sexing using the established morphometric model as a reference.