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Dorsal fin diagram with landmarks labeled. Fins allow the sharks to be able to guide and lift themselves. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift, and guidance.
Shark fins on display in a pharmacy in Yokohama, Japan. Shark finning is the act of removing fins from sharks and discarding the rest of the shark back into the ocean. This act is prohibited in many countries. [1] The sharks are often still alive when discarded, but without their fins. [2][3][4] Unable to swim effectively, they sink to the ...
Shark fin. According to the Humane Society International, approximately 100 million sharks are killed each year for their fins, in an act known as shark finning. [31] After the fins are cut off, the mutilated sharks are thrown back in the water and left to die. In some countries of Asia, shark fins are a culinary delicacy, such as shark fin ...
File:Shark finning diagram.svg. Size of this PNG preview of this SVG file: 800 × 345 pixels. Other resolutions: 320 × 138 pixels | 640 × 276 pixels | 1,024 × 441 pixels | 1,280 × 551 pixels | 2,560 × 1,103 pixels | 1,300 × 560 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Shark fin soup is a status symbol in Asian countries and is erroneously considered healthy and full of nutrients. Scientific research has revealed, however, that high concentrations of BMAA are present in shark fins. [139] Because BMAA is a neurotoxin, consumption of shark fin soup and cartilage pills, therefore, may pose a health risk. [140]
The sharks are often noticeably scarred, possibly through encounters with lampreys or cookiecutter sharks. The basking shark's liver, which may account for 25% of its body weight, runs the entire length of the abdominal cavity and is thought to play a role in buoyancy regulation and long-term energy storage.
Batoidea is a superorder of cartilaginous fishes, commonly known as rays. They and their close relatives, the sharks, compose the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families. Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the ...
E. naucrates is a medium-sized fish which can grow up to 110 cm (43 in) length. [ 9 ] Its body is elongated and streamlined, and its lower jaw is clearly prognathic (it projects forward well beyond the upper jaw). [ 3 ] The jaws, vomer and tongue have villiform teeth. [ 3 ] The main distinctive feature to distinguish from other fishes is the ...
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