Citation:
Sears, R., C. Ramp, A Douglas, and J. Calambokidis. 2013. Reproductive parameters of North Pacific blue whales Balaenoptera musculus. Endangered Species Research 22:23-31.
Abstract:
Link:
http://www.researchgate.net/profile/Christian_Ramp/publication/260421584_Reproductive_parameters_of_eastern_North_Pacific_blue_whales_Balaenoptera_musculus/links/551584400cf2d70ee270732f.pdf