Re: CO2 and aquatic plants
Hey Steve, not to get too picky, but there are very few aquatic plants
which obtain CO2 from the sediment. These are Isoetes spp., Littorella
uniflora, Lobelia dortmanna, Eriocaulon spp. Generally, this ability is
restricted to small rosette plants growing in extremely oligotrophic
waters. Other species, such as Valisneria spp., Heteranthera dubia
and Myriophyllum spp. have been tested and found not to have the ability
to extract CO2 from the sediment (Hydrobiologia 98:3 - 7, 1983).