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The Deep Sea

The Deep Sea. By Brady Romero. Undocumented What is it? Physically Environmentally Biologically http://www.youtube.com/watch?v=Uqly8ERIkHM. Intro. Beneath continental shelf Order of shelf? Originally thought as flat Trench benthic zone?

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The Deep Sea

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  1. The Deep Sea By Brady Romero

  2. Undocumented What is it? Physically Environmentally Biologically http://www.youtube.com/watch?v=Uqly8ERIkHM Intro

  3. Beneath continental shelf Order of shelf? Originally thought as flat Trench benthic zone? http://www.youtube.com/channel/UCl3Vf8heuOumLuC_toRYGXg Physically

  4. We know nothing Expensive Hard Time consuming Inaccurate Bathysnap Camera Bathysnack Our problems

  5. Light Order? Food? Exceptions? Temperature Constant -1* to 4* Celsius Exceptions? Dissolved oxygen Minimum under _____ Then constant Environment

  6. Currents Keep measurements constant Three types Tidal currents Oceanic conveyor Coriolis effect Hydrostatic pressure _atmospheres for _m Organisms adapt http://www.youtube.com/watch?v=GnekAQTbEcI Environment

  7. Sediment Mainly soft, fine mud Thick 2 classes Inorganic Biogenous Percentage? Types? Dependent on surface Whales Important We suck even more Environment

  8. Production Chemosynthesis Sulfur compounds Mainly allochthonous Rely on POM 1-3%primary production reach seabed Dissolved Organic Matter Needed for carbon http://www.youtube.com/watch?v=ufxGw8EqY5Q Food supply

  9. Large food falls Carcasses Important food source Scavengers Unpredictable Long times between food sources Plant falls provide C Terrestrial matter is unused Think there is other food http://www.youtube.com/watch?v=2ykxQwleMo4 Food supply

  10. POM from euphotic 3 main groups Fecal pellets Moults Marine snow Grows like snow Timing of food Directly associated with surface blooms http://www.youtube.com/watch?v=-Hi5muM44NE Food supply

  11. Slope Hard to determine changes Distribution More in shallow then deep Size of organisms Generally Direct relationship Gigantism Organisms

  12. Diversity Forbes Don’t know much Assume little Composition Realized nice Small overlap of animal Species 1.4 million species on Earth Organisms

  13. Mobile megafauna Echinoderms Crustaceans Lobsters Ontogenetic Benthopelagic fish http://www.youtube.com/watch?v=2ykxQwleMo4 Organisms

  14. First vent observed 1977 Galapagos rift By Robert Ballard Atochthonous Chemosynthesis Thermophiles Super Hyper Cold seeps Hydrothermal vents

  15. Hydrothermal vents • Vestimentarians • Worms • Trophosome • Special organ • Holds bacteria • Lecitrophicism • Short larval stage • http://www.youtube.com/watch?v=BtmXN_tH2iM

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