Snow algae on Alaskan glaciers
Seven species of snow algae were observed on Alaskan glaciers (green algae and cyanobacteria). Each species has some preferable conditions on the glaciers. Most of the species are common in other places in the Northern Hemisphere. Following algae are collected on Gulkana Glacier in the Alaska Range.
This is most well-known snow alga. Bloom of this alga causes visible red snow (watermelon snow). This species is common in North America, Japan, Arctic, Patagonia. The algae prefer snow surface rather than ice on glaciers. The pictures above are different life stage of the alga.
This is dominant species in ice area of Alaska glaciers. Also, this is common in arctic and Himalayan glaciers.