June 29, 2017 — Alaska’s most urban whales have yet to show any meaningful increase in numbers, evidence that recovery remains elusive for the endangered population despite numerous protective measures imposed in recent years. On the plus side, the Cook Inlet beluga population has not declined notably in the past two years, scientists say.
The latest survey of the small and endangered white whales estimates the population at 328 animals, within a range of 279 and 386, the National Oceanic and Atmospheric Administration reports.
That represents barely any change from the previous estimate of 340 animals, from 2014, but far below the 1,300 belugas that scientists say were swimming three decades ago in the silty, salty water between Anchorage and the Gulf of Alaska.
“Cook Inlet belugas are still in danger of extinction because the population is so small,” said Paul Wade, head of Cook Inlet beluga research at NOAA’s National Marine Fisheries Service. “The population trend over the last 10 years has been relatively stable compared to the steep decline seen in the 1990s, but there is some evidence the population has continued to decline slightly. We are concerned that the population is not yet increasing towards its former abundance level,” Wade said in a prepared statement.
The newest population estimate comes from the latest in a series of regular aerial counts conducted by NMFS. The estimate is based on thousands of photographs taken from the air a year ago; analysis of those images is a laborious process, so the count that emerged required a full year of work and review, officials said.