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13 Cards in this Set
- Front
- Back
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What is the difference between fish and fishes?
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Fish = one species
Fishes = multiple species |
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Mouth Positions
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Superior = upwards
Terminal = forwards Inferior = downwards |
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What is a Fish?
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Fish - aquatic vertebrates that have gills throughout life and limbs; if any are in the shape of fins
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What are the functions of dorsal and anal fins?
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Act as stabilizers that prevent yawing and rolling.
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What is the function of caudal fins?
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Act as a means of propulsion.
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What is the function of paired fins?
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They control pitching (vertical movement) and horizontal direction in movement.
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What are the purposes of fins?
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1) Aid in forward movement.
2) Guide a course for the movement. 3) Provides a way to stop or back up. |
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What are the basic body plans?
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Eel-Like (lampreys, eels)
Bottom Fishes (sucker fish, flounder) Surface-Oriented (sight predators) Lie-in-Wait (barracuda, pike) Rovers (sharks, trout) Deep bodied (angelfish, butterflyfish) |
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What types of caudal fins are there?
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Protocercal (tail wraps over notochord)
Heterocercal (uneven lobe size) Homocercal (no extension into fin) Isocercal (more advanced tail) |
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What type of fins do bony fish have?
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Lunate
Forked Rounded |
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What types of swimming are via trunk and tail?
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Anguilliform (2/3 body used) (eels)
Subcarangiform (1/2 body used) (cod) Thunniform (1/4 body used) (tuna) |
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What types of swimming is with fins?
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Tetraodontiform (mola mola) (dorsal and anal fins oscillate simultaneously)
Rajiform (rays) (pectoral fins undulate backwards and forward) |
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What are other forms of locomotion?
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1) Using fins simultaneously (seahorses)
2) Terrestrial (mudskipper) 3) Jet Propulsion (anglerfish, batfish) 4) Aerial (flying fish, tarpons) |
