Delaney, David G.; Johnson, Ryan Lloyd; Bester, Marthan Nieuwoudt; Gennari, Enrico; Stow, Adam(Public Library of Science, 2012-04-13)
Determining the residency of an aquatic species is important but challenging and it remains unclear what is the best
sampling methodology. Photo-identification has been used extensively to estimate patterns of animals’ ...
Jewell, Oliver Joseph David; Wcisel, Michelle A.; Gennari, Enrico; Towner, Alison V.; Bester, Marthan Nieuwoudt; Johnson, Ryan Lloyd; Singh, Sarika(Public Library of Science, 2011-11)
We present 15 individual cases of sub-adult white sharks that were SPOT tagged in South Africa from 2003–2004 and have
been re-sighted as recently as 2011. Our observations suggest SPOT tags can cause permanent cosmetic ...
Jewell, Oliver Joseph David; Johnson, Ryan Lloyd; Gennari, Enrico; Bester, Marthan Nieuwoudt(Springer, 2013-07)
Previous work on white sharks indicate the species show seasonally limited
movement patters, at certain aggregation sites small areas may play vital roles in the
life history of a large amount of the population. Acoustic ...