October 7, 2016 — They bounced around the coast in a 22-foot Zodiac, a team of federal scientists with a dart rifle trying to nail the dorsal fin on a killer whale. The seas had been calm when they came across the pod of orcas along the Pacific Ocean near the U.S. border with Canada. But then the winds exploded and the waters turned rough, and the satellite tag and dart they fired missed the mark and smacked the water.
It was February 2016, and the scientists with the National Oceanic and Atmospheric Administration had been trying to attach tiny satellite transmitters to the endangered cetaceans to track where they go in winter, to help see why their populations are so depressed. So the researchers retrieved the dart, reloaded the rifle, and took another shot, this time hitting the animal, a healthy-looking 20-year-old male known as L95.
The darting seemed “routine in all regards,” a report would later state, until the orca wound up dead and that dart became the prime suspect. On Wednesday, an expert panel of scientists agreed that efforts to attach the satellite tag to L95 likely paved the way for a rare fungal infection that killed the endangered mammal, leaving only 82 orcas left in that population.
The accident and findings left whale scientists reeling. NOAA is “deeply dismayed that one of their tags may have had something to do with the death of this whale,” said Richard Merrick, the agency’s chief scientist, himself a former whale researcher.