Researchers using electronic tags were able to monitor blue and fin whales off the coast of Southern California over multiple weeks, providing new insight into the feeding behaviors of the two largest whale species. The researchers also found evidence of differences in the feeding intensity and habitat use of males and females of both species.
Warming temperatures and changes in ocean circulation and salinity are driving the breakup of ice sheets in Antarctica, but a new study suggests that intense storms may help push the system over the edge.
Scientists can predict where and when blue whales are most likely to be foraging for food in the California Current Ecosystem, providing new insight that could aid in the management of the endangered population in light of climate change and blue whale mortality due to ship strikes, a new study shows.
Oregon State University marine ecologist Sarah Henkel glued acoustic tags onto several legal-sized Dungeness crabs near the mouth of the Columbia River and off Cape Falcon, then deployed acoustic receivers north and south of the two locations to learn more about their movements.
Lisa Ballance, an ecologist with the National Oceanic and Atmospheric Administration’s Southwest Fisheries Science Center in La Jolla, California, has been named director of the Marine Mammal Institute at Oregon State University.
A tidepool crustacean’s ability to survive oxygen deprivation though it lacks a key set of genes raises the possibility that animals might have more ways of dealing with hypoxic environments than had been thought.
The vast subtropical “gyres” – large systems of rotating currents in the middle of the oceans – cover 40 percent of the Earth’s surface and have long been considered biological deserts with stratified waters that contain very little nutrients to sustain life.