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Dogfish Shark

Dogfish Shark. Yayory Chitpasong Jessica Blaha Alexis Broadnax Angel Gallegos. Kingdom : Animalia -Eukaryotic, needs oxygen Phylum : Chordata -Bilateral symmetry, segmented body/ muscle Class : Chondrichthyes -jawed fish with cartilage Order : Squaliformes

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Dogfish Shark

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  1. Dogfish Shark Yayory Chitpasong Jessica Blaha Alexis Broadnax Angel Gallegos

  2. Kingdom: Animalia • -Eukaryotic, needs oxygen • Phylum: Chordata • -Bilateral symmetry, segmented body/ muscle • Class: Chondrichthyes • -jawed fish with cartilage • Order: Squaliformes • -two dorsal fins, with spines, no anal fin • Family: Squalidae • -rough skin, venomous spines • Genus: Squalus • Species: Acanthias Classification

  3. Animals Related to Dogfish Shark Pygmy Shark -species of dogfish shark. Sleeper Shark

  4. Habitat Bays, inshore, or offshore Most commonly bottom-dwellers 45°- 55°waters Will venture to brackish waters.

  5. Feeding Scavenger/ opportunistic feeder. Mostly fish and spineless creatures Crabs, mussels Almost anything Carnivore Predators

  6. Reproduction Bear live young 2-12 eggs per season Gestation longest of any vert 18-24 months 2-15 “pups” (average of 6)

  7. Movement Dorsal fin helps with balance 2 kinds of muscle Thin red layer for cruising White layer for bursts of speed Skin made up of dermal denticles Pointed backwards to help reduce water resistance.

  8. Circulation/Respiration 5 gill slits Water moves over gills from inside, tiny blood vessels absorb oxygen Ram ventilation 2 chambered heart Cold blooded

  9. Nervous System Receptors sensitive to electric fields -located in/on the head -Just as developed and important as other senses -Good for sensing fish moving or mollusks buried in sand

  10. Interesting Facts Most common shark alive Can live 25-100 years Called dogfish because they hunt and travel in packs Flat, blunt teeth can bite on the hardest of prey. (crabs, lobsters, etc.) Smooth dogfish can camouflage themselves

  11. Dissection Pictures Seminal Vesicles Liver Spiral Intestine

  12. Bibliography http://www.enchantedlearning.com/subjects/sharks/species/Dogfish.shtml http://dsc.discovery.com/tv-shows/shark -week/bios/smooth-dogfish-shark.htm http://www.deepseawaters.com/spiny-dogfish-shark.htm http:// www.montereybayaquarium.org/animals/AnimalDetails.aspx?enc=VsGX+Lst7 _QYFrKIYw3JEKQ== http://www.sharkinfo.ch/SI2_99e/sacanthias.html

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