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What do these have in common?
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They are plankton (organisms that drift)
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Means of plankton collection
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phytoplankton Autotrophic by photosynthesis Must stay in photic zone
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coccolithophore Calcium carbonate shells
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Cyanobacteria (a.k.a. blue green algae)
Creates 50-90% of world’s oxygen 1st photosynthetic organism Blooms can create hypoxia
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Diatoms Silica shells
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dinoflagellates Use flagella to swim toward light Can bioluminesce
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So can “firefly squid”
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Dinoflagellates are also responsible for “red tide”
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Zooplankton (heterotrophic animals and protists)
Can be holoplankton (whole life as plankton) or meroplankton (larval forms of nekton)
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Jellyfish and siphonophores
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Zooflagellates and cilliates
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foraminifera Calcium shells make ooze, which makes chalk and limestone
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radiolarians Silica shells also contribute to ooze
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crustaceans (ex. Krill and copepods)
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Nekton Larvae Echinoderms (spiny skin, radial symmetry)
Mollusks (muscle foot, mantle) Arthropods(crustaceans, jointed foots, exoskeleton) Annelids (worms) Chordates (have backbones)
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echinoderms Larval starfish
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mollusks Larval octopus
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crustaceans Larval barnacle
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vertebrates
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DESIGN YOUR OWN PLANKTON
common name What used to maintain buoyancy Latin name Energy source Phyto- or zooplankton Nutrient source Holo- or meroplankton Means of locomotion Location on Earth Other unique characteristics Specific habitat Size Solitary or colonial
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Krous PPT
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Diatoms
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Appendages to slow sinking
Planktoniella sol has a marginal ring to increase surface area
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Coccolithophores
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Dinoflagellates
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Life Cylce of Pfiesteria piscicida
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What’s wrong with this picture? Someone was sleeping in oceanography!
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Radiolarians
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Foraminifera
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Foraminifera sand from Okinawa, Japan
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Copepods
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You need to be at least 17 to view this R-rated slide
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Which is more resistant to sinking
Which is more resistant to sinking? One is a warm water copepod and the other is a cold water copepod. Cold salty water is more viscous (resistant to flow) than warm
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Echinoderms plankton tow echinoderm larvae lobster plankton
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Match the meroplankton with their…
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…adult stage
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Plankton? Yes! spongebob jellies
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