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OSTEICHTHYES BONY FISH

OSTEICHTHYES BONY FISH. FINS. CAUDAL  FORWARD MOVEMENT. PAIRED FINS. PECTORAL  TURNING AND STOPPING PELVIC  TURNING AND STOPPING. MEDIAL FINS. DORSAL  BALANCE ANAL  BALANCE. CAUDAL. HOMOCERCAL SAME / SYMMETRICAL HETEROCERCAL NOT SAME / ASYMMETRICAL. ASPECT RATIO.

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OSTEICHTHYES BONY FISH

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  1. OSTEICHTHYESBONY FISH

  2. FINS • CAUDAL  FORWARD MOVEMENT

  3. PAIRED FINS • PECTORAL  TURNING AND STOPPING • PELVIC  TURNING AND STOPPING

  4. MEDIAL FINS • DORSAL  BALANCE • ANAL  BALANCE

  5. CAUDAL • HOMOCERCAL • SAME / SYMMETRICAL • HETEROCERCAL • NOT SAME / ASYMMETRICAL

  6. ASPECT RATIO • FAST VERSUS SLOW SWIMMERS • FAST SWIMMERS HAVE A HIGH • ASPECT RATIO (LUNATE/FORKED) • SLOW • SWIMMERS HAVE A LOW ASPECT RATIO (ROUNDED)

  7. GILLS • SEPARATE OXYGEN FROM THE WATER • OPERCULUM – GILL COVER • THREE PARTS • GILL ARCH  SUPPORT • GILL RAKER FILTER • GILL FILAMENT  ABSORPTION OF OXYGEN

  8. COUNTER-CURRENT EXCHANGE • BLOOD AND WATER FLOW IN OPPOSITE DIRECTIONS

  9. SWIM BLADDER • HELPS WITH BUOYANCY • LATERAL LINE • DETECTS VIBRATIONS IN THE WATER

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