Sentences with phrase «by ice algae»

With less sea ice many marine ecosystems will experience more light, which can accelerate the growth of phytoplankton, and shift the balance between the primary production by ice algae and water - borne phytoplankton, with implications for Arctic food webs.

Not exact matches

There have been hints that there's more biological productivity in the Arctic Ocean than once suspected (perhaps helped along by climate change): In 2012, scientists reported seeing massive blooms of algae proliferating under the sea ice.

And at high global latitudes, cold lakes normally covered by ice in the winter are seeing less ice year after year — a change that could affect all parts of the food web, from algae to freshwater seals.

By taking ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summeBy taking ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summeby algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summer.

Some of these biomarkers are produced by certain species of algae, among which one group can only be found in open surface water, while the members of another group only live in sea ice (or did so in the Earth's distant past).

These include Arctic cod and capelin, while krill and Calanus finmarchicus are replaced by Arctic amphipoda (another group of crustacean zooplankton), which live on ice algae which are also absent from Atlantic water.

By the end of the test, snow that got extra algae was three times as likely to have melted to slush or down to a layer of ice beneath it.

In a core of sediments taken from the sea floor that was once covered by the Larsen A Ice Shelf, researchers led by Dr. Eugene W. Domack, a professor of geology at Hamilton College in Clinton, N.Y., found the tiny fossils of marine algae.

As they warm and as the sea ice retreats, larger areas are freed for invasion by major blooms of algae and other microbes.

These authors postulated an extended Barents Sea Ice Sheet, the western part of the huge Eurasian Ice Sheet51, 55, that had reached the shelf edge causing polynya - like open - water conditions (triggered by strong katabatic winds) with phytoplankton and sea ice algae production, subglacial meltwater outflow and the deposition of suspended material on the slope at site PS2138 -Ice Sheet, the western part of the huge Eurasian Ice Sheet51, 55, that had reached the shelf edge causing polynya - like open - water conditions (triggered by strong katabatic winds) with phytoplankton and sea ice algae production, subglacial meltwater outflow and the deposition of suspended material on the slope at site PS2138 -Ice Sheet51, 55, that had reached the shelf edge causing polynya - like open - water conditions (triggered by strong katabatic winds) with phytoplankton and sea ice algae production, subglacial meltwater outflow and the deposition of suspended material on the slope at site PS2138 -ice algae production, subglacial meltwater outflow and the deposition of suspended material on the slope at site PS2138 - 2.

The occurrence of phytoplankton, sea ice algae and terrigenous biomarkers are indicated by green stars, yellow stars and orange rhombs, respectively.

Polynya - like conditions caused by strong katabatic winds allowed sea ice algae and phytoplankton production during the late (st) MIS 6 (Fig. 6, Scenario 2).

They analyzed the relationship between the growth of the algae and the amount of light being reflected by the ice sheet surface.

Unseasonably warm summers appear to be abetted by microbes and algae that grow on the increasingly wet surface of the ice sheet, producing pigments that boost the ice's absorption of solar energy.