Harp seal: Wikipedia
#Fisheries And Oceans Canada, #Gulf of St.Lawrence, #Newfoundland, #GarryStenson
Toronto, Apr 19 (Canadian-Media): Harp seals who usually give birth in the Gulf of St. Lawrence, had been forced, this year, according to officials from the Fisheries Department, to move off coast of Newfoundland seeking abundant thick ice for more favorable birthing condition, media reports said.
keeping count of the pups being birthed, scientists come up with population numbers of Harp seals, thestar.com reports said.
Fisheries and Oceans Canada estimate the number of harp seal pups born in a year from time to time by using aerial surveys conducted in the spring time when seals emerge out onto the ice to have their pups.
Fisheries and Oceans Canada: Facebook
Estimates of total number of harp seals is done using a population model incorporating annual reproductive rates and periodic counting of pup production as well as information on removals.
Scientist Garry Stenson said that the climate change had caused the seal herd to spread out over a much larger area than usual instead of congregating in a few areas favorable for birthing.
Stevenson tweeted that he followed timing of births by identifying Newfoundland pups’ developmental stages.
(Reporting by Asha Bajaj)