April 27, 2017 — Decades after most countries retired their harpoons, whales still face threats from fishermen, ships, and coastal pollution. But one species that seemed to have overcome these challenges was Megaptera novaeangliae, better known as the humpback whale.
Heavily hunted by the early 20th century, an international whaling moratorium and protection under the US Endangered Species Act (ESA) gave humpbacks the breathing space they needed to recover.
From 1986 to 2008, the whales’ numbers rose to 60,000 worldwide, and their status on the International Union for the Conservation of Nature’s “Red List” improved from “Endangered” to “Least Concern.” By last September, the National Oceanic and Atmospheric Administration (NOAA) announced that nine of the 14 distinct humpback populations no longer warranted ESA protection. Last year, one was even spotted in the Hudson River.
But a study published Tuesday in the journal Marine Mammal Science puts an asterisk on this progress. Close to shore, ship collisions threaten several species of whales, and these strikes may be greatly underreported for one humpback population in the Gulf of Maine.