Robuta

https://www.usgs.gov/publications/morphometric-sexing-northwest-atlantic-roseate-terns
A difficulty in the study of monomorphic species is the inability of observers to visually distinguish females from males. Based on a sample of 745 known-sex...
northwest atlanticmorphometricsexingroseateterns
https://journal.nafo.int/
The journal focuses on environmental, biological, economic and social science aspects of living marine resources and ecosystems of the northwest Atlantic...
northwest atlanticfishery sciencejournal