This study marks the first acoustic comparison between wild belugas and narwhals from the same location and provides strong support for the use of echolocation in PAM efforts to differentiate belugas and narwhals acoustically.
This paper presents results from the youngest portion of this population, deceased fetuses and calves-of-the-year, to provide insights into breeding and calving seasonality for this endangered population.
Daniel J. Vos, Kim E. W. Shelden, Nancy A. Friday, and Barbara A. Mahoney researched and combined beluga age estimates, from the teeth of hunted and stranded belugas during the period 1992–2001, with additional teeth collected up to June 2015.
In this study, scientists describe techniques used to create a calving rate index and discuss the implications for the conservation and recovery of the depleted Cook Inlet, Alaska beluga whale (Delphinapterus leucas) population.