Conservation groups say the major threat to the birds' future is deep-sea fishing using a line with a number of baited hooks attached to it. Up to 100,000 albatrosses a year drown on longline ...

Unless appropriate mitigation is in place, longline fishing can cause high levels of ... catch mortality (>5000 birds / 0.59 birds per 1000 hooks in 1996) has been reduced to negligible levels ...