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It is also possible to find algae associated with rocks or living in the thin film of melted water in the snow patches. [8] Presently there are over 300 algal taxa identified on Antarctica , with Bacillariophyceae ( Diatoms ) and Chlorophyta ( Green algae ) being the most widespread on Antarctica. [ 8 ]
Durvillaea is a genus of large brown algae in the monotypic family Durvillaeaceae.All members of the genus are found in the southern hemisphere, including Australia, New Zealand, South America, and various subantarctic islands.
When dry, the thallus shrinks, increasing the density of its pigmentation and shielding itself from light; this effect is most prevalent in the marginal areas, which contain the most algae. [8] In situ measurements of this lichen's photosynthetic activity were conducted in continental Antarctica, showing it thrives in its habitat. Its high ...
The largest marine algae are kelp species, which include bull kelp (Durvillaea antarctica), which can reach over 20 metres (66 ft) long and is thought to be the strongest kelp in the world. As many as 47 individual plants can live on 1 square metre (10.8 sq ft), and they can grow at 60 centimetres (24 in) a day.
Asterochloris is a genus of green algae in the family Trebouxiophyceae.It is a common photobiont in lichen, occurring in the thalli of more than 20 lichen genera worldwide. ...
Declines in the duration and extent of sea ice in the Arctic leads to declines in the abundance of ice algae, which thrive in nutrient-rich pockets in the ice. These algae are eaten by zooplankton, which are in turn eaten by Arctic cod, an important food source for many marine mammals, including seals. Seals are eaten by polar bears.
The algae and lichens grow where there is moisture, and they hide in cracks to be protected from the wind. The dominant grassland is the tussock. These grasses get to be 2 m (6 ft 7 in) high, so they provide habitat for many mammals. [25]
Algae Lake is a narrow, winding lake, 9 nautical miles (17 km) long and between 0.2 and 1 nautical mile (0.4 and 1.9 km) wide, extending in an east–west direction in the ice-free Bunger Hills of Antarctica.
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