Although not as commonly mentioned as tuna, salmon makes a few appearances in Calvin and Hobbes. When the family had it for dinner, Calvin exclaimed that he dislikes salmon, and so brought it up to his room to give to Hobbes, to encourage the latter to finish his homework. The monsters under Calvin's bed also once tried to get Hobbes to push Calvin over by saying they had fresh salmon. it is unknown if the plan succeded.
Hobbes being enticed by the monsters