Time Spent in Exclusive Economic Zones of Southern Oceans by Non-breeding Wandering Albatrosses (Diomedea spp.): Implications for National Responsibilities for Conservation
D. G. Nicholls, M. D. Murray, E. C. Butcher and P. J. Moors
Emu 100(4) 318 - 323
Abstract
Fourteen non-breeding Wandering Albatrosses of three taxa,
Diomedea exulans exulans,
D. e. gibsoni and
D. e. antipodensis, were satellite-tracked between 1992
and 1996 in southern oceans eastwards from 30˚E to 70˚W for a total
of 1128 days providing 3965 locations. Eight
D. e. exulans were tracked from July to November around
Australian waters between 110˚ and 160˚E and spent 52-100% of
their time in the Australian Exclusive Economic Zone (EEZ). Three subsequently
moved into, and two across, the Indian Ocean. Three
D. e. gibsoni were tracked in the Tasman Sea and the
south-west Pacific Ocean. One tracked from September to November 1994 spent
52% of its time in the EEZs of Australia and New Zealand. Two others
tracked in January and February 1995 spent 23% and 33% of their
time in Australian and New Zealand EEZs in the Tasman Sea. Two of three
D. e. antipodensis were tracked during 1996 in the
southern Pacific Ocean from the New Zealand EEZ to the Chilean EEZ. One
returned to New Zealand waters and was tracked for a total of 373 days. These
three birds spent more than 54% of their tracked time in EEZs. The
considerable time spent by non-breeding Wandering Albatrosses in EEZs gives
host nations an opportunity to establish measures to reduce greatly their
seabird bycatch losses from longline fishing. The mobility of these
albatrosses between the EEZs of different nations suggests that such
conservation mea-sures could be further enhanced by nations participating in
the International Convention on the Conservation of Migratory Species of Wild
Animals (the Bonn Convention).
Full text doi:10.1071/MU9949
© CSIRO 2000





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