The rate of incidental mortality of birds in the IUU longline fishery in Subarea 48.3

Information on the rates of incidental mortality of birds experienced by IUU vessels is extremely difficult to obtain. CCAMLR has, in the past, used data from the 1997 legitimate fishery, when a large number of birds were caught and when the implementation of mitigation measures was low, to approximate the IUU situation. This paper describes analyses undertaken using the 1997 data to refine the estimates of IUU bird catch rates for use in our analysis of the impact of IUU fishing in Subarea 48.3 (WG-FSA-02/4).