Brismak

The Torsk it seems, from his account, or as it is called in the Shetlands, Tusk and Brismak, is a northern fish, which as yet has not been discovered lower to the southward than the Orknies, and is even rather scarce there.

Source: wiktionary

itt I wiz kummin hemm frae Ska, / whaar I wiz rowin dat simmer, / ee setterdey nycht wi a biudie o' / ling hedds an peerie brismaks, an / bruk o' dat kynd apo ma bak, that I was coming home from / Ska, wheere I was fishing that / summer, one Saturday night with a creil [or basket] ling heads / and small tusk-fish, and scaps / of that kind upon my back,

Source: wiktionary

Twa brismaks, a stäblin', an' four krooners [grey gurnards]!

Source: wiktionary