Read the course blog here! Ashley Stoehr began her career in marine biology as an undergraduate at the University of Rhode Island where she studied the mechanics of feeding in small sharks, skates, and rays.
She later received her Ph. Her research involves analysis of temperature tagging data, exploratory dissections of the heart and blood vessel anatomy, measurements of gills, and mechanical and biochemical experiments using isolated muscle tissue.
Financial Support. Skip to main content. Introduction to the Biology of Sharks, Skates, and Rays.
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Extinction risk and conservation of the world's sharks and rays.
Find a library. Show Summary Details Preview This book provides a resource on the biological and physiological characteristics of the cartilaginous fishes: sharks, rays, and chimaeras.
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Show More Show Less Keywords: cartilaginous fishes ; sharks ; rays ; chimaeras ; taxonomy ; morphology ; ecology ; physiology ; jaws ; muscles Book. Subscriber login. The study says such entanglement -- mostly involving lost or discarded fishing gear -- is a "far lesser threat" to sharks and rays than commercial fishing, but the suffering it causes is a major animal welfare concern. Co-author Professor Brendan Godley, co-ordinator of the university's marine strategy, added: "Due to the threats of direct over-fishing of sharks and rays, and 'bycatch' accidental catching while fishing for other species , the issue of entanglement has perhaps gone a little under the radar.
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- The Biology of Sharks and Rays, Klimley, Oerding.
Our study was the first to use Twitter to gather such data, and our results from the social media site revealed entanglements of species -- and in places -- not recorded in the academic papers. The review of academic papers found reports of sharks and rays entangled in plastic, spanning 34 species in oceans including the Atlantic, Pacific and Indian.
Biology of Sharks and Rays - E-bok - Klimley A Peter Klimley () | Bokus
On Twitter, the researchers found 74 entanglement reports involving individual sharks and rays from 26 species including whale sharks, great whites, tiger sharks and basking sharks. Both data sources suggested "ghost" fishing gear nets, lines and other equipment lost or abandoned were by far the most common entangling objects. Other items included strapping bands used in packaging, polythene bags and rubber tyres.
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