New research shows that more than 90 per cent of sunflower sea stars off the West Coast have died over the past decade, and the species is close to extinction. The study, led by Oregon State University, the Nature Conservancy and over 60… Read More ›
Pacific Ocean
Environmental Crisis on Russian Pacific Coast
Scientists from a local nature reserve who examined the waters of the bay said 95% of sea life to the depth of 10 to 15 meters was dead.
How Wildfire Smoke May Harm Whales & Dolphins
Wildfire smoke is made up of a range of gases, including carbon monoxide; nitrogen dioxide; polycyclic aromatic hydrocarbons, or PAHs; and hazardous particulate matter, which has been shown to increase risks of respiratory and cardiovascular illnesses in humans.
Pacific West Coast Acidification Rate Larger than Other Oceans
The ocean absorbs carbon dioxide from the atmosphere, which reduces pH levels and concentrations of calcium carbonate, a mineral used by shellfish to calcify their shells. As more carbon is released into the atmosphere, concentrations of calcium carbonate decrease and the shells of organisms like foraminifera get thinner, a trend Osborne saw clearly in the sediment cores she examined.
“The shell thickness record instantly showed a long-term declining trend,” she said. “It was really obvious across entire record.”
Massive Marine Heat Wave Returns
The current expanse of warm water stretches from Alaska to Southern California to Hawaii. It appears similar to conditions five years ago when the original “blob” was first taking shape, federal scientists said, although so far, the warmer-than-normal waters extend down only about 150 feet below the surface, rather than 600 feet five years ago.
Underwater Sound System with Hopes of Reducing Whale Injury from Ships
A listening station on the channel floor is able to capture whale calls as far away as 30 miles (48 kilometers), the Los Angeles Times reported Friday. That device is connected by cable to a buoy floating above that transmits data by satellite to scientists on shore.
30 Dead Gray Whales Along West Coast
Editor’s note: The consistently disturbing news of marine mammals dying off or stranding in mass appears to be a global event. Gray whales are an iconic species that have survived throughout the centuries, including the great whale hunts of the… Read More ›
“Drastic” Dolphin Strandings in So Cal
Six dolphins — four dead and two alive — have washed up in Huntington, Newport and Laguna beaches. Two more were reported in Seal Beach but washed back out to sea.
The high number led PMMC officials on Monday, Feb. 25, to declare the strandings “drastic and unexpected.”
The Many Faces of the Elephant Seal
Each photo is by Charmaine Coimbra. These photos were shot with either a 300 mm or 40-150 mm lens. Regulations and guidelines have been developed with specific recommendations and distances for viewing whales, dolphins, porpoises, seals, sea lions, sea… Read More ›
Dead-Zones on US West Coast Now Normal
Scientists say West Coast waters now have a hypoxia season, or dead-zone season, just like the wildfire season. Hypoxia is a condition in which the ocean water close to the seafloor has such low levels of dissolved oxygen that the… Read More ›
