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Lake Communities and Ecosystems



  • Jon O'Donnell

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Resource Brief

Over the next several decades using a watershed perspective, Arctic Network (ARCN) will monitor longterm trends in chemical, physical, and biological characteristics of large lake ecosystems and their associated fi sh populations within Gates of the Arctic National Park and Preserve. • Seasonal and decadal scale changes in lake levels and water temperatures, which affect fi sh habitat, will be monitored with sensors. • We will analyze the chemical attributes (e.g. chlorophyll-a, anions, pH, dissolved oxygen, turbidity, and salinity) of lakes because they determine lake productivity, species composition, and sensitivity to acidifi cation and contaminants. • Other indicators of lake ecosystem health, such as the structure and diversity of phytoplankton and zooplankton communities, will be analyzed from water and mesh net sample collections. • In order to document change in shoreline habitat, we will use aerial and panoramic photography to estimate the extent of shoreline erosion and slumping. Riparian habitat will also be assessed along designated transects.


Citation Year Type Access Holdings IRMA
Download O'Donnell J. 2015. Chemical Composition of Large Lakes in Alaska’s Arctic Network, 2013-2014. National Park Service, Arctic Network Inventory and Monitoring Program. Fairbanks, AK 2015 Geospatial Dataset Public 1 Link to
Download O'Donnell_ARCNLakes_NRDS_2015_final.pdf O'Donnell JA and Others. 2015. Chemical composition of large lakes in Alaska’s Arctic Network: 2013-2014. Natural Resource Data Series. NPS/ARCN/NRDS—2015/985. National Park Service. Fort Collins, Colorado 2015 Published Report Public 1 Link to
Download RB_ARCN_LargeLake_20110112_FINAL.pdf Burkart G. 2011. Arctic Network Large Lakes Natural Resource Brief. National Park Service 2011 Resource Brief Public 1 Link to


Key words: alaska, algae, bering land bridge, cape krusenstern, chemistry, community, diatom, erosion, fish, gates of the arctic, hydrocarbons, kobuk, lake, macroinvertebrate, macrophytes, methane, national park, noatak, nutrient, permafrost, photosynthetically-active radiation, pond, productivity, shorelines, species richness, surface area, temperature, vegetation, water levels, water quality, zooplankton

Subject Categories:

  • Ecological Framework: Biological Integrity | Focal Species or Communities | Freshwater Communities
  • Ecological Framework: Geology and Soils | Geomorphology | Lake Features and Processes
  • Ecological Framework: Water | Hydrology | Surface Water Dynamics
  • Ecological Framework: Water | Water Quality | Aquatic Macroinvertebrates and Algae
  • Ecological Framework: Water | Water Quality | Nutrient Dynamics
  • Ecological Framework: Water | Water Quality | Water Chemistry

View this project 'Monitoring Lake Communities and Ecosystems in the Arctic Network of National Parklands' on the IRMA Data Store | JSON | XML | Project reference last updated on 2018-04-02 10:42:53 by

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