By Timothy Gardner WASHINGTON (Reuters) – The “dead zone” in the Gulf of Mexico, an area choked by low oxygen levels that threatens marine life, is smaller than expected this year but more deadly, the government said on Monday. The zone, caused by a runoff of agricultural chemicals from farms along the Mississippi River, measured […]
David Perlman, Chronicle Science Editor (07-09) 17:30 PDT — Four divers led by a land-based ecologist hunted the turbid waters of San Francisco’s South Beach marina Thursday for a nasty, invasive seaweed that is taking over harbors and estuaries all along the Pacific coast. Although their prey didn’t seem to have a chance, the divers […]
Low-oxygen “dead zones” in the ocean could expand significantly over the next century, according to marine chemists. These predictions are based on the fact that, as more and more carbon dioxide dissolves from the atmosphere into the ocean, marine animals will need more oxygen to survive. Concentrations of carbon dioxide are increasing rapidly in the […]
By Julie Steenhuysen CHICAGO (Reuters) – A nerve toxin produced by marine algae off California appears to affect creatures in the deep ocean, posing a greater threat that previously thought, U.S. researchers said on Sunday. Surface blooms of the algae known as Pseudo-nitzschia can generate dangerously high levels of domoic acid, a neurotoxin blamed […]
From Not Exactly Rocket Science: In late 2007, seabirds off the coast of California began to die in record numbers. The waterproof nature of their feathers and been wrecked, and they were soaked to the skin. Without an insulating layer of air trapped within their plumage, the damp birds were suffering from extreme cold. These […]
Scientists believe climate change is the cause of stronger winds that drive upwelling of nutrient-rich deep ocean waters The spectre of an ocean floor littered with dead shellfish, rock fish, sea stars and other marine life off the Oregon coast spurred Mark Snyder, a climate change expert, to investigate whether California’s coast faced a similar […]
(University of Copenhagen) Unchecked global warming would leave ocean dwellers gasping for breath. Dead zones are low-oxygen areas in the ocean where higher life forms such as fish, crabs and clams are not able to live. A team of Danish researchers have now shown that unchecked global warming would lead to a dramatic expansion of […]
Raw sewage and pollution from agricultural run-off polluted 83 percent of China’s coastal waters in 2008, state media said Saturday. China’s coastal waters last year witnessed 68 red tides, or algae blooms, which feed off nutrients found in excess pollution and sap water of oxygen, killing off large amounts of sea life, Xinhua news agency […]
By Maggie Fox, editing by Philip Barbara WASHINGTON (Reuters) – Huge swarms of stinging jellyfish and similar slimy animals are ruining beaches in Hawaii, the Gulf of Mexico, the Mediterranean, Australia and elsewhere, U.S. researchers reported on Friday. … The report, available on the Internet at http://www.nsf.gov/news/special_reports/jellyfish/index.jsp, says the Black Sea’s fishing and tourism industries […]
