GEOS 212 1st edition Lecture 23Outline of last lectureLECTURE 22 OUTLINE (Coral Reefs & Plankton – 16 April 2015)Corals todayCorals are both Animal and Plant!History of evolution and migration of corals- 240 Million Years Old, from Tethys SeaTemperature, nutrient control, wave action, and distribution of coral reefsCoral reefs on continental shelvesCorals on volcanic islandsImportant aspects of Coral reefs (Barrier Reef video)Part 1: 0:00-7:19- Description of coral organism and colony- Three feeding strategies of sea cucumbers- How is sand produced in coral reef environment?- How and why are nutrients recycled in a coral reef?Part 2: 7:19-10:02- What is the role of sea grasses and algae?- Name of rock that makes up reef?- Plant (zooxanthellae) versus animal structure of coral- Day/night differencePart 3: 10:02:17:33- When/where did corals first appear?- Where do most coral reefs occur today?- Why did they have to leave this area?- How & why did they leave this area?Plankton:Primary producers = planktonic plants (diatoms & coccoliths) = phytoplanktonPrimary consumers = planktonic animals = zooplanktonSome are always planktonic = holoplanktonSome are planktonic only as juveniles = meroplanktonOutline of Current Lecture:LECTURE 23 OUTLINE (Fish, Fisheries and The Open Ocean – 21 April 2015)Fish:- Life cycle (eggs, larvae, juvenile, adult)These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Predator and/or Prey- HabitatsFisheries:- History- Locations- Management- International PolicyCharacteristics of open ocean community- Mostly low productivity (= downwelling!)- Life in local areas of upwelling- Need mobility to find and catch prey- Need mobility to escape predatorsVideo on open ocean community & baleenwhale feeding (Open Ocean 4:40-9:55)(0:00-5:08)- Feeding strategy of marlin & tuna- Strategy of sardines to escape predators- Sei Whale feeding strategy- Pattern of feeding over timeCurrent
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