Marine Biology Basics... the videos

SantaMonica

Well-known member
Here are some nice videos for those who want to understand more of their reefs:

http://www.youtube.com/watch?v=qfMaBeLwiO4 - Ocean Productivity
http://www.youtube.com/watch?v=7d96F0ak4uY - Photosynthesis part 1
http://www.youtube.com/watch?v=WTBlq3gUv5Y - Food Chains vs. Food Webs
http://www.youtube.com/watch?v=FwZDIU6sM_4& - Nutrients and Primary Production
http://www.youtube.com/watch?v=SnlCx7mVcZ4 - Chlorophyll
http://www.youtube.com/watch?v=LtZ75KW2t-U - Zooplankton and Primary Production
http://www.youtube.com/watch?v=quH4x640Jgs - Bacteria
http://www.youtube.com/watch?v=rdIjMQATQks - Food Webs
http://www.youtube.com/watch?v=bc_fGWjmNeI - Microbial Food Web
http://www.youtube.com/watch?v=pQaE0e0iD3s - Trophic Pyramids
 
Very good information! Thanks for posting them.
What needs to be pointed out though reef ecosystems work very differently. With sharks making up 50% to 80% of the fish biomass the trophic pyramid is inverted. And with corals and their holobiont animals are playing the role of autotrophs and are competing with algae for nutrients.
 
I think however that the base of the pyramid is still algal biomass, due to the 10% nature of nutrient absorption from level to level. There is much more algal biomass on a reef than there is coral+symbionts. Remember you also need to factor in phytoplankton.
 
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