what ecological role do spiny dogfish sharks play
Abstract. Ecosystem based modeling was used to determine the ecological role of spiny dogfish (Squalus acanthias), an opportunistic predator, in the northeast United States marine environment. Two time periods were modeled; one when spiny dogfish populations were depressed and one after recovery.he estimated spawning stock biomass according to the 2013 update was just under 236,000 mt (Rago and Sosebee, 2013). The goal of the current manuscript was to determine whether the role of spiny dogfish in this ecosystem changed along with their current recovery.