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Fish MorphologyGreat diversityexists amongfishes bodytypes and inadaptationsthey have thathelp themsurvive in theirenviron...
Body Shape - Fusiform• Streamlined, torpedo-shaped• Fast open water swimmers• Predators• Move tail side to side• Ex: Tuna,...
FusiformElfin Cove, AlaskaElfin Cove, AlaskaOrient Point, New YorkOrient Point, New York
Body Shape - Compressiform• Compressed from side toside• Quick bursts of speed overshort distances• Live among plants, mov...
Body Shape - Depressiform• Flattened top to bottom• Live on the bottom• Predators or scavengers• Flap fins up and down,swi...
Elfin Cove, AlaskaElfin Cove, Alaska Montauk, New YorkMontauk, New YorkCheck out tail shape Check out tail shapeDepressiform
Body Shape – Filiform (Attenuated)• Elongated shape• Slow• Live soft mud, sand, orunder rocks• Slither like a snake• Ex: E...
Caudal Fin Shape• Caudal Fin = Tail• Homocercal = symmetrical• Heterocercal = asymmetrical
Tail Shape – Homocercal-Rounded• Large amount of surfacearea allows sharp turns,quick starts for predatoravoidance• Create...
Tail Shape – Homocercal-Truncate• Allows short bursts ofspeed to escape predatorsor constant slowswimming• Less drag than ...
Tail Shape – Homocercal-Forked• Allows constant swimmingover long distances,reduces drag• Open water swimmers• Don’t need ...
Huntington, NewYorkHuntington, NewYorkSmithtown, New YorkSmithtown, New YorkHomocercal-Forked
Tail Shape – Homocercal- Lunate• Half-moon shaped• Fast moving oceanicswimmers• Less drag, great acceleration,reduced mane...
Tail Shape – Heterocercal• Medium speed• Asymmetrical – top longerthan bottom• No air bladder, so tail provideslift• Reduc...
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Fish morphology

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Fish morphology

  1. 1. Fish MorphologyGreat diversityexists amongfishes bodytypes and inadaptationsthey have thathelp themsurvive in theirenvironment
  2. 2. Body Shape - Fusiform• Streamlined, torpedo-shaped• Fast open water swimmers• Predators• Move tail side to side• Ex: Tuna, Swordfish, Shark,Striped Bass, Salmon
  3. 3. FusiformElfin Cove, AlaskaElfin Cove, AlaskaOrient Point, New YorkOrient Point, New York
  4. 4. Body Shape - Compressiform• Compressed from side toside• Quick bursts of speed overshort distances• Live among plants, moveamong narrow spaces• Move tail side to side• Ex: Moonfish, ButterflyfishFrontview
  5. 5. Body Shape - Depressiform• Flattened top to bottom• Live on the bottom• Predators or scavengers• Flap fins up and down,swim like a bird• Ex: Halibut, Flounder,Skates, RaysFrontview
  6. 6. Elfin Cove, AlaskaElfin Cove, Alaska Montauk, New YorkMontauk, New YorkCheck out tail shape Check out tail shapeDepressiform
  7. 7. Body Shape – Filiform (Attenuated)• Elongated shape• Slow• Live soft mud, sand, orunder rocks• Slither like a snake• Ex: Eels, Sand LanceSideview
  8. 8. Caudal Fin Shape• Caudal Fin = Tail• Homocercal = symmetrical• Heterocercal = asymmetrical
  9. 9. Tail Shape – Homocercal-Rounded• Large amount of surfacearea allows sharp turns,quick starts for predatoravoidance• Creates drag, fish tireseasily• Ex: Northern Puffer,Clownfish
  10. 10. Tail Shape – Homocercal-Truncate• Allows short bursts ofspeed to escape predatorsor constant slowswimming• Less drag than rounded• Bottom dwelling fish• Ex: Killifish, Flounder,Halibut (see slide 6)
  11. 11. Tail Shape – Homocercal-Forked• Allows constant swimmingover long distances,reduces drag• Open water swimmers• Don’t need speed forprotection or to catchfood• Ex: Many schooling fish,Menhaden, Striped Bass,Porgies
  12. 12. Huntington, NewYorkHuntington, NewYorkSmithtown, New YorkSmithtown, New YorkHomocercal-Forked
  13. 13. Tail Shape – Homocercal- Lunate• Half-moon shaped• Fast moving oceanicswimmers• Less drag, great acceleration,reduced maneuverability• Ex: Tuna, Swordfish
  14. 14. Tail Shape – Heterocercal• Medium speed• Asymmetrical – top longerthan bottom• No air bladder, so tail provideslift• Reduced maneuverability• Ex: Many sharks

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