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Sharks Sleep When Gently Handled, Study Reveals
19 Jul
Summary
- Bull sharks can be easily handled by flipping them onto their backs.
- A study examines toxins and heavy metals in bull sharks.
- Bull sharks act as bioindicators for river and human health.
Bull sharks, often perceived as dangerous, can be easily handled by researchers through a method involving flipping them onto their backs, inducing a temporary docile state. Taryn-Lee Perrior, a PhD candidate at Griffith University, has employed this technique to study over 200 bull sharks in four rivers and Moreton Bay.
Her research focuses on the toxicology of bull sharks, particularly juvenile ones found with skin conditions in rivers like the North Pine River. Perrior aims to dispel the myth that sharks do not get sick and highlight how human activities impact them. This study is crucial because bull sharks inhabit rivers and are in close proximity to humans.
The research will analyze toxins and heavy metals accumulated in bull sharks, which are consumed by recreational fishers. Due to bioaccumulation, these substances can reach high concentrations over time. The findings, expected by the end of the year, will establish a baseline for bull sharks as bioindicators, helping monitor environmental changes.
