Saving Seafood

The COVID-19 Slowdown Will Show Whether Quieter Seas Help Killer Whales

June 30, 2020 — Deborah Giles and her dog are on a mad search for floating poop. Killer whale poop, to be precise.

Giles, a killer whale biologist at the University of Washington’s Center for Conservation Biology, is cruising the Strait of Juan De Fuca, a roughly 15-mile-wide inlet between Canada’s Vancouver Island and Washington state. The coastal waterway is a hotspot for migrating killer whales. Lately, the waters have been calmer and quieter because of boating and border restrictions enacted in the wake of COVID-19. That is why Giles has brought her scat-tracking dog, Eba, who will sniff the air as the boat cruises then start licking her lips, whining, and barking as they get closer to killer whale excrement.

These buoyant, information-rich fecal samples ready for collection. Giles wants to know if the hushed waters are helping whales relax. “It’s just such a novel situation where we just don’t have people going out on their boats,” she says. “It’s markedly different.”

Read the full story at Smithsonian Magazine

Scientists Working On Orca Recovery Not Surprised By Recent Tragedies

August 7, 2018 –A multitude of factors are harming Puget Sound’s local population of endangered orcas: water pollution, noise, loss of habitat.

But topping that list right now for many scientists is recovery of their primary food source: Chinook salmon.

The tragic scenes captured on the water over the past week – of the grieving orca J35 incessantly carrying her deceased calf, and of 4-year-old J50 ill and starving –  are sad events, but not surprising to scientists working on orca recovery.

They say they established years ago that when Chinook salmon are scarce, local orcas become sick and unable to effectively reproduce.

“This is just a really conspicuous example of it,” said Sam Wasser, who directs the Center for Conservation Biology at the University of Washington.

He’s part of a team of scientists that has done DNA and hormone analysis of orca scat collected by sniffer dogs. They’ve proved that when pregnant orcas are low on food and start metabolizing their blubber, toxins are released into their bloodstream that cause them to miscarry.

Read the full story at KNKX