Body width was approx 100cm. It was resting on a sandy bottom in the shaddow of a large ship wreck at a depth of approx 25m.
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Does anyone know how sharks and rays control their buoyancy without a swim bladder
My understanding is as follows. Sharks and rays have to move forward to maintain their position/depth. Rather like a plane flying through the air. No forward motion and they sink. Fish with swim bladders act like a hot air balloon. They can maintain their vertical position without the need for forward motion.
Hope this helps
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