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Fish

Fish. Miranda Miller Gabreal Preisendorfer Period 3. General Information. Fish are water dwelling creatures Fish are vertebrates and breathe using gills There are more than 24,000 species of fish Fish first appeared 500 million years ago. Characteristics. Bony fish have bony skeletons.

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Fish

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  1. Fish Miranda Miller GabrealPreisendorfer Period 3

  2. General Information • Fish are water dwelling creatures • Fish are vertebrates and breathe using gills • There are more than 24,000 species of fish • Fish first appeared 500 million years ago

  3. Characteristics • Bony fish have bony skeletons. • Rays and sharks have skeletons made of cartilage • Carnivores

  4. Bony Fish • Phylum Name-Osteichthyes • Have glands that secrete mucus to glide through the water • Types • Ray finned fish • Lobe finned fish • Lung fish

  5. Bony Fish con’t • Most are egg layers • Can become sexually mature at different ages depending on the species • Fertilization can be internal or external • The esophagus is short and expandable which allows it to swallow large objects.

  6. Sharks and Rays • Phylum name- Chondrichthyes • Sharks • Have rows of sensory organs running along each side of the body • Must swim constantly to avoid sinking • Swift swimmers

  7. Sharks and Rays con’t • Made of powerful muscle and cartilage • They digest food by using there teeth to tear and crush food • Rays • Scoop food up with there mouths along the ocean floor • Bottom dwellers

  8. Sharks and Rays con’t • They feed by using there jaws to crush mollusks • Tails are whip-like • Poison spines that function for ocean defense • They reproduce by the male biting the female on the pectoral fins. • Reproduce through eggs

  9. Examples of Fish • Clown fish • Tuna • Sting rays • Eels • Trout • Carp • salmon

  10. Work cited http://animals.nationalgeographic.com/animals http://www.buschgardens.org/infobooks/BonyFish/anatomy.html http://www.elasmodiver.com/

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