MNS320 Quiz3 key - MNS320 Marine Ecology Quiz #3, 20 points...

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MNS320 Marine Ecology Name:____________________________________ Quiz #3, 20 points total UT EID:__________________________________ 1. (2 pt) Name 3 macronutrients needed by phytoplankton for growth. N, P, Si, S 2 pts if you get all 3, 1 pt if you get 2 of them, 0.5 points if you only get one nutrient 2. (1 pt.) List one way in which primary production in the ocean is different from terrestrial primary production. Ocean has lower production per area (or vice versa) Ocean has much lower biomass/standing stock (or vice versa) Ocean biomass has a very short turnover time (or vice versa) Consumption roughly balances production in the ocean 3. (2 pt) Describe two of the ecological roles of copepods in planktonic ecosystems. Major grazers of phytoplankton Sloppy feeding produces DOM Fecal pellets – produces POM Food for other zoops 4. (1 pt) List one hypothesis suggested to explain why zooplankton vertically migrate. Escape predation
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This note was uploaded on 09/26/2010 for the course MNS 320 taught by Professor Staff during the Spring '08 term at University of Texas at Austin.

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MNS320 Quiz3 key - MNS320 Marine Ecology Quiz #3, 20 points...

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