No apparent shortage of prey for southern resident killer whales in Canadian waters during summer
Researchers reported that Chinook salmon in the Salish Sea in summertime are four to six times more abundant for southern resident killer whales than northern resident killer whales.
What do differences in animal behaviour reveal about the decline of Steller sea lions in Alaska?
More than 50 years of studying Steller sea lion behaviour has yielded one of the most complete life history descriptions for any species of marine mammal.
Guadalupe fur seals continue to recover as new colony discovered
New colony of Guadalupe fur seals discovered on El Farallón de San Ignacio Island, Gulf of California
The Killers of California and Oregon
Thirteen years of photo-identification data of killer whales observed in California and Oregon provide new insights into the distribution and population structure of mammal-eating killer whales in the eastern North Pacific Ocean.
Blue herons identified as a significant juvenile salmon predator
Looking for predators that ate salmon, an Indigenous biologist suggested looking at heron. Discarded tags proved Pacific great blue herons could be scooping up as many as 3-6% of all juvenile salmon.
Orca Quest 2020: In Search of Killer Whales
In August 2020, Marine Mammal Research Unit (MMRU) researchers set sail to determine whether there are enough chinook salmon to support southern resident killer whales in the Salish Sea.
Research into bowhead whales finds unique foraging behaviour
Understanding the needs of bowheads is a crucial first step taken to learn how they will respond to climate change.
Harbour seals respond differently to pulses of out-migrating coho and Chinook salmon smolts
UBC researchers set out to determine who was eating juvenile salmon, and when and where it was occurring by capturing and tracking harbour seals that carried cell-phone-like devices that recorded everything and everywhere the seals went.
STUDENT PROFILE: Ana Pozas
Focusing her research on the diets of California sea lions, Pozas enjoys working with the ‘dogs of the sea’, proving that the “ocean is not such a scary place and that there’s so much to learn still.”
What’s Killing Killer Whales?
Despite there being no singular common cause of death, the study found a common theme: Human-caused deaths occurred in every age class — from juveniles to subadults and adults.