The sculpture by Günter Grass, unveiled in front of the Gdansk Municipal Gallery in October 2014.
"Turbot" is the title of one of Günter Grass's books. It is a typical Baltic fish.

Günter Wilhelm Grass (16 October 1927 – 13 April 2015) was a German-Kashubian novelist, poet, playwright, illustrator, graphic artist, sculptor, and recipient of the 1999 Nobel Prize in Literature.
He was born in the Free City of Danzig (now Gdansk, Poland).