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Crawford RJM, Whittington PA, Martin AP, Tree AJ, Makhado AB 2009. Population trends of seabirds breeding in South Africa's Eastern Cape and the possible influence of anthropogenic and environmental change. Marine Ornithology 37 159-174

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Population trends of seabirds breeding in South Africas Eastern Cape.pdf	1017.49 KB

Hutchings L, Van der Lingen CD, Shannon LJ, Crawford RJM, Verheye HMS, Bartholomae CH, van der Plas AK, Louw D 2009. The Benguela Current: An ecosystem of four components. Progress in Oceanography 83 15 - 32

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Hutchings et al 2009 The Benguela in four parts.pdf	2.51 MB

Crawford RJM, Underhill LG, Raubenheimer CM, Dyer BM, Martin J 1992. Top predators in the Benguela ecosystem - implications of their trophic position. South African Journal of Marine Science 12 (1) 675-687

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Top predators in the Benguela ecosystem.pdf	1.29 MB

Shannon LV, Crawford RJM, Pollock DE, Hutchings L, Boyd AJ, Taunton-Clark J, Badenhorst A, Melville-Smith R, Augustyn CJ, Kochrane KL, Hampton I, Nelson G, Japp DW, Tarr RJQ 1992. The 1980s - a decade of change in the Benguela ecosystem. South African Journal of Marine Science 12 271 – 296

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The 1980s_a decade of change in the Benguela ecosystem.pdf	2.79 MB

Rae CMD, Boyd AJ, Crawford RJM 1992. Predation of anchovy by an Agulhas ring - a possible contributory cause of the very poor year-class of 1989. South African Journal of Marine Science 12 167-173

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Predation of anchovy by an Agulhas ring.pdf	739.3 KB

Villacastin-Herrero CA, Crawford RJM, Field JG 1992. Statistical correlations between purse-seine catches of chub mackerel off South Africa and selected environmental parameters. South African Journal of Marine Science 12 (1) 157-165

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Statistical correlations between purse seine catches of chub mackerel off South Africa and selected environmental parameters.pdf	677.24 KB

Crawford RJM, Allwright DM, Heyl CW 1992. High mortality of Cape Cormorants (Phalacrocorax capensis) off Western South Africa in 1991 caused by Pasteurella multocida. Colonial Waterbirds 15 236-238

Website link:http://www.jstor.org/stable/1521458

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