One of the world’s most endangered animals used to be routinely seen off the NC coast. Not anymore.
November 27, 2017 — WILMINGTON, N.C. — After years of steady improvement, one of the Atlantic ocean’s most at-risk whales — a species with strong ties to North Carolina — is in perilous decline, according to researchers.
The North Atlantic right whale, historically a target for harpooners, saw its population improve from 270 whales in 1990 to 483 in 2010, according to research led by Richard Pace of the National Oceanic and Atmospheric Administration (NOAA)’s Northeast Fisheries Science Center, based in Woods Hole, Massachusetts. The population fell to 458 whales by 2015.
“When you’re talking about a population that’s somewhere between 400 and 500 individuals, you can never let your guard down. And you can never assume that things are going well,” said Ann Pabst, a University of North Carolina Wilmington (UNCW) zoologist whose lab focuses on marine mammals.
The downward trend continued in 2017, with 16 North American right whales dying, putting the species’ population in decline and at risk of endangerment. The Pace team’s research indicates the female population declined about 7 percent from 2010 to 2015, while the male population dropped about 4 percent.
Right whales are likely not breeding quickly enough to replace their deceased counterparts, according to the Pace team’s study, with the plight further enhanced by female whales dying at a faster rate than males. Bill McLellan, who works with UNCW’s Marine Mammal Stranding Program, explained some of the reasons behind it.
“Females have a lot riskier life. They spend a lot more time up and down the coast, they migrate a lot more to give birth,” McLellan said. “Males generally stay north. … They’re sitting in one location, and they’re not exposing themselves to the mortality factors.”
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