blueback
nounEtymology From blue + back.
› Any of several fish:
1
A lake trout (Salmo oquassa).
2
A salmon (Oncorhynchus nerka).
3
A blueback herring or blueback shad (Alosa aestivalis, syn. Clupea aestivalis) similar to the alewife.
4
A Beardslee trout (Oncorhynchus mykiss irideus f. beardsleei).
5
The blueback salmon