Picture: Getaway Gallery
Marine biologists like Michelle Jewell from Michigan State University Museum observed an unprecedented decline in shark sightings, sparking numerous theories. Initial speculation about overfishing was dismissed, as was the idea that continued orca predation was solely responsible. Instead, data suggested the sharks had migrated eastward, as noted by Alison Kock from South African National Parks.
Kock’s 2023 study highlighted significant declines in False Bay and Gansbaai white shark populations, accompanied by increases in other areas. The theory posited that sharks were relocating to avoid orca attacks, a plausible explanation for their sudden disappearance from traditional habitats.
However, this conclusion was challenged. In March 2024, marine biologists argued that the data used in Kock’s study may have been misinterpreted. They pointed out that the shark numbers in Algoa Bay, a supposed new habitat, were insufficient to account for the losses in the Western Cape. Moreover, they noted that the decline began before the orcas’ arrival, suggesting other factors.
The debate continues, with conservationists emphasizing the importance of accurate data to guide efforts in protecting the great white shark population. The question remains: where have all the great white sharks gone, and what does their absence mean for the marine ecosystem?
