The Collaborative International Dictionary of English v.0.48:

Sauger \Sau"ger\, n. (Zool.)
   An American fresh-water food fish (Stizostedion Canadense);
   -- called also gray pike, blue pike, hornfish, land
   pike, sand pike, pickering, and pickerel.
   [1913 Webster] Saugh

The Collaborative International Dictionary of English v.0.48:

Pickering \Pick"er*ing\, n. [Probably a corruption of
   Pickerel.] (Zool.)
   The sauger of the St.Lawrence River.
   [1913 Webster]