Planktonic Studies
May 11, 2007

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Week 7: Studying planktonic systems by light trapping, plankton tows, and spawning urchins Setting light traps the night before class. Setting light traps the night before class. Setting light traps the night before class. Setting light traps the night before class. Setting light traps the night before class.
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Setting light traps the night before class. Spawning urchins. Spawning urchins. Spawning urchins. Female urchin. Male urchins.
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Urchin sperm Urchin fertilization. Urchin fertilization.