A bstract Research of the microbial ecology of McMurdo Dry Valley lakes has concentrated
primarily on phototrophs; relatively little is known about the heterotrophic bacterioplankton …

Research on the lakes of the McMurdo Dry Valleys, Antarctica, is typically conducted during
the period of 24 h sunlight (October to January) when logistical support is readily available …

Plankton abundance and biomass were investigated in five lakes of the McMurdo Dry
Valleys, Antarctica: Lakes Bonney, Fryxell, Joyce, Hoare and Miers. Despite plankton …

1. The temporal abundance and composition of the plankton of a continental Antarctic lake
(Lake Druzhby) situated in the Vestfold Hills, Eastern Antarctica was investigated from …

Freshwater lakes occur through much of Antarctica and are characterized by short food
chains dominated by microbes. Comparatively few studies have been made of continental …

Bacterioplankton production was measured in the water columns of two ultra‐oligotrophic,
freshwater Antarctic lakes (Crooked Lake and Lake Druzhby) during an annual cycle. In both …

A eutrophic lake at Cierva Point, Antarctic Peninsula was surveyed during the summers of
1997 and 1998. Phytoplankton size fractions (micro-, nano-and picoplankton) were …

Bacterial production assays (thymidine incorporation rates) were used to evaluate the
activity of heterotrophic bacteria at the chemocline region in both the East (ELB) and West …

Arctic, Antarctic, and alpine ecosystems are recognized as sensors and sentinels of global
change. As a consequence of their high sensitivity to minor climatic perturbations …

Abstract The McMurdo Dry Valleys of Antarctica form the coldest and driest ecosystem on
Earth. Within this region there are a number of perennially ice-covered (3–6 m thick) lakes …