From renowned photographers Chris and Monique Fallows and co-authors on the new paper: “This image has special meaning to Monique and I as it so incredibly symbolizes the unbelievable sights we witnessed in the early mornings at Seal Island, False Bay, for over two decades – the oceans most famous super predator exhibiting the most spectacular behavior seen in its 60-million-year tenure on our planet. Today tragically the waters around Seal Island are empty of these icons.
A team of marine biologists, experts in shark ecology, genetics, and fisheries, has challenged the findings of a recent study which claimed that the population of white sharks in South Africa has not decreased, but simply redistributed eastwards to flee predation from orcas.titled “South Africa’s great white sharks are changing locations – they need to be monitored for beach safety and conservation.
Firstly, regarding the claim that South Africa’s white shark population has migrated eastwards, they raise two objections. The first objection has to do with the presentation of the two datasets in the 2023 study, and that one cannot infer than an increase in the number of shark sightings in one spot, in this case, Algoa Bay, is directly comparable to a reduction in shark sightings in another spot, such as False Bay.
Secondly, with regard to the claim that the supposed white shark redistribution eastward was driven by shark-eating orcas, they point out that the onset of white shark declines in False Bay , Gansbaai and Mossel Bay predates the first appearance of those orcas in False Bay and in Gansbaai in 2015, and in Mossel Bay only in 2017. In other words, the alleged cause cannot appear two years later than its effect.
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