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Data

The Alaska Salmon Program has been collecting ecological data on Bristol Bay sockeye salmon populations and the lakes and streams they spawn in during the ice-free season (June–September) since 1946.

The table below provides an overview of the data types, collection locations, and time span for the data we have collected. Not all datasets were sampled every year within the time span they have been collected. This table is also available for download as a PDF. A separate page lists those data sets from this table that are currently available to the public.

For questions regarding Alaska Salmon Program data and general information, please send email via the following:

DATA HOLDINGS
  Wood River Kvichak Chignik
Data Type Aleknagik Nerka Little Togiak Beverley Mikchalk Kulik Iliamna Clark Chignik Black
Spawning ground surveys 1946-2005 1946-2005 1947-2005 1946-2005 1946-1980 1946-2005 1946-1984 1946-1984 1966-1972 1973-1980
Age data 1947-2005 1947-2005 1950-2005 1947-2005 1952-1980 1950-2005 2000-2005      
Townet sampling of juvenile sockeye and resident fishes 1958-2005 1957-2005 1958-2005 1958-1988   1958-1987 1961-2005 1962-1989 1961-2005 1961-2005
Beach seine sampling of sockeye and resident fish 1962-2005 1960-1970 1966-1983 1969-1969 1970-1970 1969-1969 1962-1983   1956-2005 1956-2005
Primary productivity 1961-2005 1961-2005 1961-2005 1961-2005   1961-2005 1961-2005   1961-2005 1961-2005
Water clarity 1961-2005 1961-2005 1961-2005 1961-2005   1961-2005 1961-2005   1960-2005 1961-2005
Temperature- depth profiles 1962-2005 1962-2005 1953-2005 1962-2005   1962-2005 1961-2005   2001-2005 2001-2005
Temperature- year round 1998-2005 1998-2005 1998-2005 1998-2005   1998-2005 1990-2005      
Water chemistry 1961-1967 1961-1967 1961-1967 1961-1967   1961-1967 1961-1965   1960-1963 1961-1963
Lake level 1952-2005 1952-2005         1961-2005   1960-2005 2001-2002
Weather 1946-2005 1946-2005         1946-2005   1955-2005 1955-2005
Zooplankton composition 1957-2005 1961-2005 1961-2005 1961-2005   1961-2005 1961-2005 1961 1961-2005 1961-2005
Solar radiation 1961-2005           holdings being verified   holdings being verified holdings being verified
Spawning gravel measurements 1993-2002 1993         1993-2002      
Ice out date 1949-2005 1955                
Ice out & freeze dates             1969-2005      
Insect sampling 1969-2005                  
Sockeye fry emergence                 2000  
Data Type Egegik lakes Igushik lakes Tikchik lakes Nunavagaluk Naknek Togiak lakes Ugashik
Spawning ground surveys 1946-1959 1946-1959 1946-1967 1946-1954   1947-1967 1946-1949
Age data              
Townet sampling of juvenile sockeye and resident fishes   1974          
Beach seine sampling of sockeye and resident fish   1965-1981   1965-1965      
Primary productivity              
Water Clarity              
Temperature- Depth profiles              
Temperature- Year round              
Water Chemistry              
Lake level              
Weather              
Zooplankton composition              
Solar Radiation              
Spawning gravel measurements              
Ice out date              
Ice out & freeze dates 1975-1999       1972-2001   1976-1999
Insect sampling              
Sockeye fry emergence