Freshwaters of Alaska: Ecological Syntheses by ALEXANDER M. MILNER

By ALEXANDER M. MILNER

Alaska's nice dimension is reflected via the big quantity and variety of its freshwater ecosystems. This quantity stories and synthesizes learn on various Alaskan freshwaters together with lakes, rivers and wetlands. The big variety of Alaskan habitats guarantees that the chapters during this e-book will supply worthwhile info for readers drawn to freshwaters, relatively nutrient dynamics, biotic diversifications, restoration mechanisms of aquatic biota, circulation succession and the administration of human-induced adjustments in aquatic habitats.

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W. Oswood also created numerous depressions that are filled with water and also areas that, due to tectonics, appear to be sinking and forming depressions that form sediment-filled lake basins. Numerous lakes, particularly in the Coast Ranges, have a dog-leg character and are termed offset lakes reflecting the lateral movements of fault systems. In coastal areas, the accumulation of beach sands may close valleys or embayments and form coastal lagoons. These are frequently breached by the ocean and may drain.

Canadian Arctic Expedition: Science on a Shoestring This expedition to northern Alaska and Canada, which took place between 1913 and 1918, was organized by Vilhjalmur Stefansson, an explorer and anthropologist (Fig. 2) . Funding came from a wide variety of sources including private donations, museums, geographic societies, and governments. Compared with the Harriman expedition, it was a patched-together operation with travel by commercial shipping, small boats, and dog sleds. Much of the collecting was carried out by Fritz Johansen.

Pissart A (1988) Pingos: An overview of the present state of knowledge. In Clark MJ (Ed) Advances in periglacial geomorphology. Wiley, New York, 279-297. Plafker G (1969) Tectonics of the March 27,1964 Alaska earthquake. S. Geological Survey Professional Paper 543-1. Post A, Mayo LR (1971) Glacier dammed lakes and outburst floods in Alaska. S. Geological Survey. Washington, DC. Post A, Meier MF (1980) World glacier inventory. Proceedings of the Riederalp Workshop, September 1978. IAHS-AISH Publication No.

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