[Energy flow in arctic aquatic ecosystems]

• Main Author: Schell, D.M.
• Language: unknown
• Published: 2008
• Subjects: 54 ENVIRONMENTAL SCIENCES; 02 PETROLEUM; ARCTIC REGIONS; FOOD CHAINS; AQUATIC ECOSYSTEMS; ENERGY BUDGETS; ALASKA; COASTAL REGIONS; CARBON 13; ISOTOPE RATIO; BEAUFORT SEA; TRACER TECHNIQUES; PEAT; Arctic; Beaufort Sea; Alaska
• Online Access: http://www.osti.gov/servlets/purl/10138591; https://www.osti.gov/biblio/10138591; https://doi.org/10.2172/10138591

This study is aimed at determining the major pathways of energy flow in freshwater ecosystems of the Alaskan arctic coastal plain. Selected sites for study of the processes supplying energy to streams and lakes to verify the generality of past findings will be surveyed for collection of organisms including the Colville River drainage and the lake region around Teshekpuk Lake. Specific objectives are to collect food web apex organisms (fish and birds) from a variety of sites in the coastal plain to verify descriptive models of ecosystem structure and food web pathways and to compare the utilization rates by insect larvae of fresh litter and in situ primary production relative to more refractory peaty materials through seasonal sampling for isotopic analysis.