The EPA National Aquatic Resource Survey (NARS) assesses the condition of the Nation’s aquatic resources, including those in Alaska. NARS is an integrated and comprehensive program that monitors five different categories of aquatic resources: coasts, streams, rivers, lakes, and wetlands. Each of the five aquatic resource categories sample specific indicators to provide information on the physical, chemical and biological condition of the resource. Examples include: coasts (water chemistry, sediment quality, benthic condition, fish tissue contaminants, habitat condition); streams (benthic condition, nutrients, sedimentation, fish habitat, riparian vegetation); rivers (fish, benthos, periphyton, nutrients, sedi-mentation, recreational indicators); lakes, including ponds and reservoirs (zooplankton, phytoplankton, sediment diatoms, sediment mercury, nutrients, microcystin, enterococcus, fish tissue chemistry); wetlands (to be determined). Sampling was conducted for the National Coastal Assessment in south central Alaska in 2002, in southeast Alaska in 2004, and the Aleutians in 2006-2007. Pilot surveys were conducted for the National Wadeable Streams Survey in the Tanana basin in 2004-2005, and for the National Wadeable Lakes Survey in the Kenai region in 2007-2008.
coasts (water chemistry, sediment quality, benthic condition, fish tissue contaminants, habitat condition); streams (benthic condition, nutrients, sedimentation, fish habitat, riparian vegetation); rivers (fish, benthos, periphyton, nutrients, sedi-mentation, recreational indicators); lakes, including ponds and reservoirs (zooplankton, phytoplankton, sediment diatoms, sediment mercury, nutrients, microcystin, enterococcus, fish tissue chemistry); wetlands (to be determined).
Alaska Fisheries Science Center (AFSC)