Page 345 - Atlas Sea Birds Ver1

Hollams Bird Island Mercury Island Possession Island Bird Island, Lambert's Malgas Island Dyer Island
Namibia Ichaboe Island Halifax Island South Africa Bay Seal Island, False Bay Bird Island, Algoa Bay Overall Total
Year

2003 1503 11837 437 10170 31070 87380 142397
2004 1910 10950 480 4790 √ 96940
2005 1414 8669 351 0 36156 108950 155540
2006 1420 12080 360 4050 29870 87550 135330
2007 √ √ √ 8400 31810 83260
2008 √ √ √ 7770 37550 106490
2009 √ √ √ 6280 33150 94050
2010 2200 10500 380 8600 √ √
2011 2200 10690 350 8270 30500 91530 143540
2012 √ √ 279 8600 29870 103200
2013 √ √ 265 3900 18580 87900
2014 √ 10080 291 7090 16980 84000
2015 √ √ 250 7870 30220 90000
2016 √ √ 147 8410 30990 99000
2017 √ √ 124 7460 23750 98100
2018 3622 7634 126 6780 20300 0 0 95720 134182
2019 √ √ 49 8990 19670 90146
2020 √ √ 131 8410 32364
2021 0 3247 7000 0 135 9207 23643 0 0 101559 144791
Maximum √ 9396 175116 √ 19258 13780 57570 √ 1 108950 384071
% 2021/22 0.00 2.24 4.83 0.00 0.09 6.36 16.33 0.00 0.00 70.14 100
total

References Crawford RJM, Cooper J. 1996. Cape Fur Seal Arctocephalus
pusillus catches Cape Gannet Morus capensis ashore at
BirdLife International. 2000. Threatened birds of the world. Lynx Malgas Island. Marine Ornithology 24: 53–54.
Edicions, Barcelona, Spain. Crawford RJM, Shelton PA. 1978. Pelagic fish and seabird
BirdLife International. 2020. Guidelines for the application of the interrelationships off the coasts of South West and South
IBA criteria. Final version, July 2020. 18 pp. Downloaded Africa. Biological Conservation 14: 85–109.
from http://datazone.birdlife.org/ on 20 May 2022. Crawford RJM, Shelton PA, Cooper J, Brooke RK. 1983. Distribution,
BirdLife International. 2022. Species factsheet: Morus capensis. population size and conservation of the Cape Gannet Morus
Downloaded from http://www.birdlife.org on 06 December capensis. South African Journal of Marine Science 1: 153–
2022. 174.
Berruti A. 1985. Cape Gannets Sula capensis ashore at Dyer Crawford RJM, Cruickshank RA, Shelton PA, Kruger I. 1985.
and Robben islands, southwestern Cape, South Africa. Partitioning of a goby resource amongst four avian predators
Cormorant 13: 71−72. and evidence for altered trophic flow in the pelagic community
Berruti A, Underhill LG, Shelton PA, Moloney C, Crawford RJM. of an intense, perennial upwelling system. South African
1993. Seasonal and interannual variation in the diet of two Journal of Marine Science 3: 215–228.
colonies of the Cape Gannet Morus capensis between Crawford RJM, Williams AJ, Crawford PB. 1986. A note on
1977/1978 and 1989. Colonial Waterbirds 16: 158–175.
Cohen LA, Pichegru L, Grémillet D, Coetzee J, Upfold L, Ryan PG. mortality of seabirds off western southern Africa, October
2014. Changes in prey availability impact foraging behaviour 1985–February 1986. South African Journal of Marine
and fitness of Cape gannets over a decade. Marine Ecology Science 4: 119–123.
Progress Series 505: 281–293. Crawford RJM, Allwright DM, Heyl CW. 1992. High mortality of
Crawford RJM. 1999. Seabird responses to long-term changes Cape Cormorants (Phalacrocorax capensis) off western
of prey resources off southern Africa. In: Adams NJ, Slotow South Africa in 1991 caused by Pasteurella multocida.
RH (eds). Proceedings of 22 International Ornithological Colonial Waterbirds 15: 236–238.
nd
Congress, Durban, 1998. BirdLife South Africa, Crawford RJM, Dundee BL, Dyer BM, Klages NTW, Meÿer MA,
Johannesburg: pp. 688–705. Upfold L. 2007. Trends in numbers of Cape Gannets (Morus
Crawford RJM. 2007. Food, fishing and seabirds in the Benguela capensis), 1956/57–2005/06, with a consideration of the
upwelling system. Journal of Ornithology 148 (Suppl 2): influence of food and other factors. ICES Journal of Marine
S253–S260. Science 64: 169–177.

339