Rutgers Raritan River Fish Migration Research
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Identifying features
Includes Alewife and Blueback
Silver color with a blue/purple color on dorsal side
Deep forked tail fin
One dark spot behind gills
Typically found in groups
Rigid fins
Black tinge on tail fin
Helpful Links:
http://www.seagrant.wisc.edu/home/Default.aspx?tabid=605&FishID=1
Can be mistaken for:
American Shad
Gizzard Shad
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