Killer whales at most risk in event of oil spill: study

Local southern-resident killer whales are at the highest risk of death and long-term population impacts in the event of an oil spill in B.C.’s coastal waters, according to a new study of mammals and oil exposure.
Researchers used projections from Trans Mountain pipelines to estimate the dispersion of oil from a tanker incident in Haro Strait, near Victoria, and overlaid that with both the range and behaviours of common marine mammals.
Both northern- and southern-resident killer whales and