March 2, 2018 — After a year of rising concern about North Atlantic right whales, which scientists say could go extinct in the next 20 years, researchers have yet to document a single newborn whale during the calving season that is coming to an end.
Bad news about the calving season follows a year with 17 documented unnatural right whale deaths in the United States and Canada, an alarming number for a species with a population of about 450 animals.
Scientists said this week that it’s too early to say with certainty that no calves were born this year, but things are not looking good. The official number won’t be known until around July, according to biologist Peter Corkeron, who leads the large whale team of the protected species branch at NOAA Northeast Fisheries Science Center.
“I don’t want to downplay how bad this is, but we don’t yet know zero,” he told the Gazette this week. “If there were 20 calves born somewhere else, I think we’d know about. While it’s too early yet to say zero, it’s not too early yet to say — well this isn’t looking very good, is it.”
Mark Baumgartner, a biologist with Woods Hole Oceanographic Institution and leader of the North Atlantic Right Whale Consortium, agreed. “It’s not
looking like this is a boom year, that’s for sure,” he said. “If I were to guess I would think it would just be maybe one or two calves. We’re not looking for a stash of 10 calves.”
North Atlantic right whales generally give birth in the winter in the ocean off northern Florida and southern Georgia. Mr. Baumgartner said whales have had calves in the Gulf of Maine “once in a blue moon.”
Aerial surveys over southern waters during calving months are on the lookout for female whales and their calves. Because the whales are so small, scientists have documented each individual and have a good idea about the number of females who are of calving age and due to give birth. Mr. Baumgartner said historically there has been a three-year interval between when female right whales have calves. As of last year, the average interval was 10 years.
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