How Fish Move Body Form and Locomotion Introduction
How Fish Move Body Form and Locomotion
Introduction Ø Welcome to the ECHO Center! Ø A little about me Ø Introduction to fishes
Overview Ø Welcome to the world of water Ø Why do fish look different from each other? Ø Why do fish swim differently from each other? l l Different habitats Different life strategies
Different Looks Ø Places where they live Ø Jobs they do Photo Courtesy of Tim Nicholson
So how does a fish move? Sandra Edwards Different ways to move Ø Tail and body Ø Fins ( www. nps. gov )
Anatomy of a Fish Ø Paired fins l l Ø Pectoral Pelvic Median fins l l Dorsal Caudal Anal Adipose
Examples of Different Ways to Move Ø Eels moves by making waves with its body Live on the bottom Ø Slow swimmers Ø Duarte
Swimming like a Catfish Ø Ø Ø Versatile and flexible tail Body is thicker near head Tail fin is very variable among different kinds of fish. Fins may aid in turning Includes catfishes, trouts, cods, goldfish, basses, etc. www. northseafish. net
Swimming a little faster Ø Herrings, some tunas, mackerals, trevallys Ø Start to see fins closer to head, deeply forked tail fin, finlets on caudal peduncle. Ø Fins take over in maneuvering. www. mpeda. com
The Fast and Furious To be fast and good at swimming a fish should be/have: Ø Warm-blooded Ø Lunate tail Ø Thick, stiff body near head Ø Strong muscles in tail www. mrmarlin. com
How does a box move through water? Fish shaped oddly use: Tail fin Ø Short caudle peduncle Ø Ø Include porcupine fish, puffer fish, boxfish www. livingreeffishes. com
How would this fish swim? www. divetrip. com
Fin Swimming Modes Ø Use the dorsal, and tail fin to move Ø Hold body straight while moving Ø Other fish: knifefish, bowfin, pipefish. www. divetrip. com
How about this fish?
Wing Flapping Ø Pectoral fins Ø Undulate front to back in rays
Non Swimmers
Crutches www. johneasley. com
Flying www. caribury. com
Drifting
Summary Ø Why fish have different bodies and ways to move Ø How fish move Ø Basic anatomy of fish Ø Four different main modes of moving Ø Oddities
Questions?
THANK YOU!!!!
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