Cascadia Research in collaboration with Oceanic Society has conducted a long-term research effort on humpback whales and other marine mammals

In 1998, Cascadia Research and the National Marine Mammal Laboratory conducted photographic identification surveys for gray whale found in the

Harbor seals (Phoca vitulina) are the most abundant marine mammal species in Washington State and occur throughout the marine waters

From 6 to 17 June 1999 (4 to 5 June were transit days), the U.S. Geological Survey conducted seismic-reflection surveys