The Icelandic shrimp consists of three separated stocks: inshore, offshore and Dhorn bank/Denmark Strait populations which differ genetically (Jónsdóttir et al., 1998) and in size, maximum length and length at sexual maturity (Skúladóttir and Pétursson, 1999). Assessment and management are specific to each stock. The offshore fishery has been the largest in terms of catches since the 1980s. A part of the catch is of a related species, Pandalus montagui, but is not differentiated during reporting (IMFA, undated 1).