Scientists have observed instances in which tuna rub themselves against the side of sharks. Apparently, they do this to dislodge painful parasites that cling to their head, eyes and gills.
“Shark skin is really smooth in one direction and it’s like sandpaper in the other,” said Chris Thompson, a Research Fellow at the University of Western Australia.
Thompson and his colleagues observed this behaviour after studying the footage of floating, baited underwater cameras which they had deployed in 36 regions in the Pacific, Indian and Atlantic Oceans in 2012 to 2019.
Apeks Exotec SCUBA Diving Buoyancy Compensator Devices (BCDs)
The dump valve knob can get stuck when the recalled BCD is inflated, opening the dump valve which stops the BCD from fully inflating. This can result in a loss of buoyancy control and poses injury (decompression sickness) and drowning hazards.
Repair
October 20, 2022
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In Ireland, new regulations giving the basking shark the "protected wild animal" status under the Wildlife Act came into effect on 9 October. The order was signed by Minister of State for Heritage Malcolm Noonan, and Minister for Agriculture, Food and the Marine Charlie McConalogue. This legislation was heavily supported by the Irish Basking Shark Group (ISBG), an international network of researchers, educators, and community representatives founded in 2009.