| Citation | Wolfaardt, A.C., L.G. Underhill, D.C. Nel, A.J. Williams and J. Visagie, 2008 Breeding success of African penguins Spheniscus demersus at Dassen Island, especially after oiling following the Apollo Sea spill. African Journal of Marine Science 30(3):565-580. |
| Ref. | 101550 Wolfaardt, A.C., L.G. Underhill, D.C. Nel, A.J. Williams and J. Visagie, 2008 |
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| Named Used as Valid | Spheniscus demersus |
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