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Synechococcus sp. /2015/08/13/weathe r/el-nino-2015/

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Presentation on theme: "Synechococcus sp. /2015/08/13/weathe r/el-nino-2015/"— Presentation transcript:

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2 Synechococcus sp.

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5 http://www.cnn.com /2015/08/13/weathe r/el-nino-2015/

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8 National Geographic Magazine, August 2011

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12 "Cypron-Range Rhincodon typus" by File:Rhincodon typus distmap.png. Licensed under CC BY-SA 3.0 via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Cypron-Range_Rhincodon_typus.svg#mediaviewer/File:Cypron- Range_Rhincodon_typus.svg

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15 "Moon phases en" by Orion 8 - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Moon_phases_en.jpg#mediaviewer/File:Moon_phases_en.jpg

16 Why do whale sharks congregate at Gladden Spit during full and last quarter moons in April and May?

17 Hypotheses Explanation that can be tested by experiments Stated as a declarative sentence Whale sharks congregate at Gladden Spit off the coast of Belize during the full and last quarter moons of April and May to Mate – Hypothesis 1 Feed – Hypothesis 2

18 Predictions – If/Then If whale sharks are congregating at Gladden Spit to feed, then what? If whale sharks are congregating at Gladden Spit to mate, then what? Lead to experiments

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20 Observational Experiment Underwater Ram Filter Feeding Surface Ram Filter Feeding https://www.youtube.com/watch?v=SBxNwgjyPGM Heyman et al. (2001)

21 Stationary Suction Feeding

22 Cubrera and Dog Snappers – Lutjanus spp. Heyman et al. (2001)

23 http://video.nationalgeographic.com/video/shark_whale

24 How can we experimentally test the feeding hypothesis? Ideas? Experimental Experiment

25 Scientific Method Make Observations Form a hypothesis – Inductive reasoning Design experiments – Deductive reasoning Gather Results Draw Conclusions

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