Food composition similarity analysis of arctic staghorn sculpin Gymnocanthus tricuspis (Reinhardt, 1830) with some non-target fish species in the Kara Sea

Abstract

This article provides data on diet composition of arctic staghorn sculpin Gymnocanthus tricuspis (Reinhardt, 1830) in the Kara Sea in the 2012, 2015, 2016. This species is a typical benthivorous fish whose diet in the Kara Sea is based on polychaetas, isopods and cumaceans. The similarity of arctic staghorn sculpin diet with other representatives of non-commercial fish of the Kara Sea was considered. Closest trophic species were identified, such as atlantic hookear sculpin, arctic alligatorfish, spatulate sculpin.