Branchinecta paludosa are then reproductive for 35–45 days. Branchinecta paludosa Branchinecta paludosa is a species of fairy shrimp with a Holarctic distribution. "B. paludosa" is widely distributed in the Arctic tundra of Eurasia, chiefly above latitudes of 60° north. It reaches its northern limit, 77° north at Ivanov Bay in the Novaya Zemlya archipelago. Further populations exist as far south as the Tatra Mountains on the Polish–Slovakian border at about 49° north. There are scattered records from North America, mostly near the Arctic Ocean. After hatching, young "B. paludosa" spend 20–30 days as larvae, before reaching sexual maturity between the end of
Severnaya Zemlya the islands, but adverse weather conditions forced them to turn southward when only an hour or two from viewing the archipelago's coastline. In the spring of 1931 Georgy Ushakov, accompanied by the geologist Nikolay Urvantsev, the veteran surveyor Sergei Zhuravlev, and the radio operator Vasily Khodov thoroughly surveyed Severnaya Zemlya during a two-year expedition to the archipelago. Ushakov and his team established a small base at Golomyanny – the western end of Sredniy Island, off October Revolution Island's western coast. From there they made multiple surveying trips into the interior and the coastlines of the larger islands. The first detailed