By following #oceans2012 you can get a sense of the types of talks going on at the meeting, at least from the perspective of the marine science twitterati, which can be quite expansive. Some random tweets:
Non-dominant diatom spp matter to vertical carbon flux-form rapidly sinking resting spores. Must know nat hist of your system!
Fish can have sublethal neurological effects in high CO2. Decrease olfaction, learning problems.
Great day of
Speaker begins a talk saying that macroalgae are not as sexy as corals. I know some people who would beg to differ.
Depends on depth, red sometimes masks blue -> dusky blue