OCS 1005 Chapter : Ch 14 Homework
15 Mar 2019
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Chapter 14: name and describe the different type of fins that fish exhibit. Most active swimming fish use two sets of paired fins pelvic fins and pectoral fins to turn, break, and balance. When not in use, these fins can be folded against the body. Vertical fins, dorsal and anal, serve primarily as stabilizers. The fin that is most commonly used to propel high-speed fish is the tail fin, which is called the caudal fin. Caudal fins flare vertically to increase the surface area available to develop thrust against the water. The five basic shapes of caudal fins are: (1. ) Rounded fins: are flexible and useful in accelerating and maneuvering at slow speeds. (2. Forked fins are found on faster fish; the fins are somewhat flexible for better propulsion but are also used for maneuvering. (4. ) Luncate fins are found on fast-cruising fish such as tuna or marlin.
