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Ocean Food Webs - Bottom Up vs Top Down

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Uploaded by on Nov 19, 2008

In this segment, we explore three different models that attempt to account for the physical, chemical, biological, and human controls on the abundance of organisms at different trophic levels in a food web.

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  • Is there any way you could email me the top-down and bottom-up control figures? They are figures 14-4 and 14-5

  • I didn't spect you're going to come out from the left of the screen!!!!!!! that was scary!!!! By the way, this is aa very educational lecture!!!! thanks !!!!

  • omg y didnt u cum up on my search 2 months ago. this is the best lecture on this topic i av seen on youtube... xam in 1 month :(

  • Thanks rly helped m school work

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