Download AEBR 104 Fisheries Risks to the Population Viability of White-capped Albatross Thalassarche steadi

This report attempts to assess fisheries risks to the viability of the main population of white-capped albatross (Thalassarche steadi), which breeds on the Auckland Islands. Three types of data were available: bycatch, photographic surveys, and mark-recapture. The mark-recapture data provided estimates of adult survival (0.96 with a 95% confidence interval of 0.91–1.00), annual probability of breeding (0.68, C.I. 0.58–0.81), and breeding success (0.63, C.I. 0.51–0.75).