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Sponges

Sponges. Phylum Porifera. Sponge Ecology. Found from intertidal zone to depths of 6000 meters World-wide distribution from polar seas to tropical waters. Over 5000 species of sponges exist in ocean environment 150 species are adapted to freshwater environments. Anatomy of a Sponge.

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Sponges

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  1. Sponges Phylum Porifera

  2. Sponge Ecology • Found from intertidal zone to depths of 6000 meters • World-wide distribution from polar seas to tropical waters

  3. Over 5000 species of sponges exist in ocean environment • 150 species are adapted to freshwater environments

  4. Anatomy of a Sponge • Simplest animal • Asymmetrical • No true tissues • Lack muscles, nerves and internal organs

  5. Filter Feeders that pump water throughout body extracting nutrients

  6. Spicules • Stiffened rods or spikes made of calcium carbonate or silica • Used for structure and defense • Many fish cannot digest the spicules, so sponges are not in their diet.

  7. Research concerning the spicules of the Venus’ Flower Basket Sponge promises to yield new technology with Fiber Optics

  8. SPONGE FACTS... • Pore bearer (latin) • Primative • Sessile • Mostly Marine

  9. Porifera = "Pore Bearer"

  10. FILTER FEEDER

  11. Spawning Barrel Sponge - Budding

  12. Sponge Development

  13. 3 Classes of Sponges • Calcarea • (bony sponges) • Hexactenellida • (Glass sponges) • Demospongiae • (spongin sponges) • Most common type

  14. Tube Sponge

  15. Elephant Ear Sponge Vase Sponge

  16. Barrel Sponge

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