Do you know why this isn't already happening at a pace to keep up with the changes they are measuring? Do you expect that the effects you mention are currently, but will soon catch up? I am honestly curious.
[1] http://blogs.smithsonianmag.com/smartnews/2013/07/chinas-mas...
A predator-prey model is essentially never just a stable population for both. Instead, you go through periods of increasing prey -> increasing predators -> decreasing prey -> decreasing predators.
Here the prey would be atmospheric carbon dioxide and the predators would be the plankton.