Tag: Salmon Population

What’s for dinner? Scientists unearth key clues to cuisine of resident killer whales

sarah JonasResearch Results

Scientists have discovered the cuisine preferences of two resident killer whale populations: the Alaska residents and the endangered southern residents. The two populations show broad preference for salmon, particularly Chinook, chum and coho. But they differ in when they switch to hunting and eating different salmon species, as well as the other fish species they pursue to supplement their diets.

What four decades of canned salmon reveal about marine food webs

sarah JonasResearch Results

By analyzing 42 years worth of canned salmon, University of Washington scientists show that levels a common marine parasite rose in two salmon species in the Gulf of Alaska from 1979 to 2021. The rise may be a sign of ecosystem recovery, possibly influenced by the 1972 Marine Mammal Protection Act.