Aquatic ecosystem

The inherent variability of fluid dynamics is recognised as a driving force in the variability of aquatic ecosystems, but a theory to explain the response of marine communities to physical influences is not well developed. The important physical proceses are those that control nutrient and irradience availability and the relative locations of prey and predators, but the extent to which those processes control plankton production is unknown.

...because marine ecosystems are multidimensional, it is difficult to seperate the variability induced by physical proceses from tha tof population dynamics.