Sentences with phrase «pteropods at»

To gauge how acidification might be affecting the Pacific, biological oceanographer Nina Bednaršek of the National Oceanic and Atmospheric Administration (NOAA) in Seattle and colleagues collected pteropods at 13 sites during a 2011 research cruise between Washington and southern California.

Not exact matches

But Fabry found that in water as corrosive as their aquatic habitat may be in 2100, the shell of at least one pteropod species turns opaque and begins to dissolve.

Biological oceanographer Victoria Fabry of California State University at San Marcos has spent years studying pteropods, thumbnail - size creatures that flutter through frigid polar and subpolar waters using flaplike wings.

The same year, researchers reported that pteropods collected at one site in the Southern Ocean around Antarctica showed signs of shell damage.

Some climate models suggest that, at current CO2 emissions levels, 80 percent of Arctic waters could prove corrosive to clams, pteropods and other species at the base of the polar food chain by 2060, the new statement said.

Ocean acidification threatens the ability of pteropods to form their fragile shells, putting a range of commercially important fish at risk that depend on the small snails for food, including salmon, herring and yellowfin tuna as well as mammals like baleen whales, ringed seals and marine birds.

A recent TV news item said little Antarctic critters I think called «pteropods» at the bottom of the food chain didn't like ice melt and that could seriously affect fish harvests.

Already — not decades from now as scientists previously expected — corrosive shelf water off the continental shelf of the West Coast is eating away at the shells of tiny free - swimming marine snails, called pteropods, that swim near the ocean's surface and provide food for a variety of fishes, including salmon, mackerel, and herring.

Pteropods — tiny swimming Arctic sea snails — have difficulty building their shells at CO2 levels very close to the present ones.

«Calcareous ooze is ooze that is composed of at least 30 % of the calcareous microscopic shells — also known as tests — of foraminifera, coccolithophores, and pteropods.