Publications

SAMPLA gathers scientists with skills and knowledge in different areas of research, in order to be able to produce fascinating world class research, to educate the public, and to conserve marine ecosystems in the best way possible

Theses

Keswick, T. (2007) The morphological characteristics, behaviour and ecology of Psammobates oculiferus. M.Sc. thesis, University of the Western Cape, South Africa.

Gennari, E. (proposed) Thermal physio-ecology of the white shark (Carcharodon carcharias). Ph.D. thesis, Rhodes University, South Africa.

Johnson, R.L. (2007). The behaviour and management of the white shark (Carcharodon carcharias) at Mossel Bay, South Africa. Ph.D. thesis, University of Pretoria, South Africa. Submission data – December 31 2007.

Johnson, R.L. (2003). Behavioural ecology of the white shark (Carcharodon carcharias) at Dyer Island, South Africa. M.Sc. Thesis, University of Pretoria, Pretoria, South Africa.

Gennari, E. (1996) Studio dei ritmi di accrescimento tramite analisi delle strutture vertebrali in Etmopterus spinax (Linnaeus, 1758) nel mar Tirreno Centrale (Vertebral ageing study, in Etmopterus spinax (Linnaeus, 1758) in central Mediterranean sea). M.Sc. Thesis, University of Rome “La Sapienza”, Italy. Download PDF (5,9 MB)

Scientific Articles

Ferguson J.W.H., van Jaarsveld A.S., Johnson R., Bredenkamp G.J., Foord S.H., and Britz M. Rodent-induced damage to pine plantations, a South African case study.Download PDF (12.1 KB)

Johnson R., Ferguson J.W.H., van Jaarsveld A.S., Bronner G.N., Chimimba C.T. Delayed responses of small-mammal assemblages subject to afforestation-induced grassland fragmentation Download PDF (12.1 KB)

Meyer M.A., Smale M., Paterson M., R. Johnson R., Koen P., Kirkman S., Oosthuizen W.H., Kotze P.G.H., Swanson S., (in press). Developing procedures and equipment for large shark telemetry studies. Download PDF (14.7 KB)

Palmeri A., Milazzo M., Chemello R. and Gennari E., (in press). Evaluation of the Ustica Island and MPA efficacy after ten years of protection.

Gennari E. and Scacco U. (2007). First age and growth estimates in the deep water shark, Etmopterus spinax (Linnaeus, 1758), by deep coned vertebral analysis. Marine Biology 152 (5): 1207-1214. Download PDF (708 KB)

Keswick T., Henen B.T. and Hofmeyr M.D. (2006). Sexual disparity in activity patterns and time budgets of angulate tortoises (Chersina angulata) on Dassen Island, South Africa. African Zoology 41: 224-233. Download PDF (348 KB)

Kock A., Johnson R.L., Bester M.N., Compagno L., Cliff G., Dudley S., Gennari E., Griffiths C.L., Kotze D., Laroche K., Meyer M.A., Oosthuizen W.H. and Swanson S. (2006). White shark abundance: not a causative factor in numbers of shark bite incidents. In: Nel D.C. & Peschak T.P. (eds.): Finding a balance: white shark conservation and recreational safety in the inshore waters of Cape Town, South Africa - proceedings of a specialist workshop. WWF South Africa Report Series - 2006/Marine/001: 1-19. Download PDF (148 KB)

Johnson R., Kock A., Bester M.N., Compagno L., Dudley S., Griffiths C.L., Keswick T., Kotze P.G.H., Laroche K., Meyër M.A., Oosthuizen W.H., Swanson S. and Jacobs L. (2006). South Africa’s White shark cage-diving industry – is there cause for concern? In: Nel D.C. & Peschak T.P. (eds.): Finding a balance: white shark conservation and recreational safety in the inshore waters of Cape Town, South Africa - proceedings of a specialist workshop. WWF South Africa Report Series – 2006/Marine/001: 40-59. Download PDF (348 KB)

Johnson R.L., Venter A., Bester M.N. and Oosthuizen W.H. (2006). Seabird predation by white shark, Carcharodon carcharias, and Cape fur seal, Arctocephalus pusillus pusillus, at Dyer Island. South African Journal of Wildlife Research 36(1): 23-32. Download PDF (488 KB)

Bonfil R., Meyer M.A., Scholl M.C., Johnson R.L., O'Brian S., Oosthuizen W.H., Swanson S., Kotze D. and Patterson M. (2005). Transoceanic migration, long-distance return migration and local movement patterns in the great white shark. Science 301:100-103. +Online supplementary material. Download PDF (784 KB)

Johnson R., Ferguson W., van Jaarsveld A., Chimimba C. and Bronner G. (2002). The effect of afforestation fragmentation on small mammal assemblages at Groenvaly grasslands. Journal of Mammalogy.

Ferguson, J.W.H., van Jaarsveld, A.S., Johnson, R., Bredenkamp, G.J., Foord, S.H. & Britz, M. 2003. Rodent induced damage to a pine plantation: a southern African case study. Agri., Eco. Environ. 95: 379-386.

Oelofse, G., Kock, A, Johnson, R. & Haskins, C. (2006) Is there a relationship between white shark presence and the management of city estuaries and river mouths?. In Nel D.C. & Peschak T.P.(eds) Finding a balance: white shark conservation and recreational safety in the inshore waters of Cape town, South Africa: proceedings of a specialist workshop. WWF South Africa Report Series – 2006/Marine/001.

Download PDF ( 156 KB)

Stewardson, C.L., Prvn, T. Meyer, M., Swanson, S. (2001) Suture age as an indicator of physiological age in male Cape fur seal, Arctocephalus pusillus pusillus (Pinnipedia: Otariidae). Zoological Journal of the Linnean Society.

Olsen, E., Mauritzen, M., Kirkman, S., Oosthuizen, W.H., Mukapuli, N., Meyer, M., Kleophas, T. Swanson, S. (2002). BENEFIT project: “Monitoring and evaluation of Cape fur seals in Southern Africa in relation to commercial fishery operations”. Field-Work report 2002, Department of Environmental Affairs and Tourism.

Elwen S, Meyer M, Best P, P.G.H. Kotze, Thornton M, and Swanson S. (2006). Range and Movements of female heaviside Dolphins (Cephalorhynchus heavisidii), as determined by Satellite-linked technology. Download PDF (3.94 MB)

Oosthuizen, W.H., Meyer, M.A., David, J.H.M., Summers, N.M., Kotze, P.G.H. and Swanson, S. (1997) Variation in Jackal numbers at the Van Reenen Bay seal colony with comment on likely importance of jackals as predators. S. Afr. J. Wildl. Res. 27(1): 26-29. Download PDF (1.32MB)

Thomson R, Oosthuzien H, Kotze D, Swanson S and Reynolds D. (1999) Estimating the survival rate of Cape fur seals. 13th Biennial Conference on the Biology of Marine Mammals. Download PDF (212 KB)

Scientific Posters

Keswick T. and Hofmeyr M.D. (2006). The ecology of Psammobates oculiferus, Kimberley biodiversity research symposium, 6th September 2006. Download PDF (564 KB)

Johnson R. (2002). Prey preference in the white shark (Carcharodon carcharias). 6th Annual Indo-pacific fish conference, Durban.

Gennari E., Scacco U. and Vacchi M. (2002). A simple technique for a preliminary vertebral ageing study in Etmopterus spinax in Central Mediterranean Sea. In: 6th European Elasmobranch Association (E.E.A.) meeting, National Museums and Galleries of Wales, Cardiff. Download PDF (96 KB)

Conference Presentations

Keswick T. and Hofmeyr M.D. (2006). Morphological characteristics and ecology of the Kalahari tent tortoise, Psammobates ouliferus. Eighth Herpetology Association of Africa symposium, Potchefstroom, 26th November 2006.

Gennari E. (2006). Acoustic telemetry offers new insight into the hunting behaviour of white sharks at Seal Island. American Elasmobranch Society, New Orleans.

Johnson R. (2006). Residency patterns and habitat use of white sharks at Mossel Bay, South Africa. American Elasmobranch Society, New Orleans.

Johnson R., Oosthuizen W.H., Bester M.N., Meyer M.A., Swanson S. and Kotze D. (2004). Habitat utilization of the white shark in South Africa, using acoustic telemetry. In Abstract of workshop: Conservation Research of Great White Sharks. 20-22 January (Wildlife Conservation Society, New York).

Johnson, R, Oosthuizen, H, Bester, M.N. (2000) The impact of cage diving on the great white shark (Carchardon carcharias). International Association for impact assessment – South African Affiliate. Annual conference, Bloemfontain.

Johnson, R., Scholl, M.C. Oosthuizen, W.H., Bester, M.N., Sadie, D. (2002). Activity patterns of the white shark (Carcharodon carchaias) at Dyer Island, South Africa. South African Zoological Society annual conference. Port Elizabeth.