Zooplankton can limit the phytoplankton productivity. The grazers can decrease the population by 75 percent. Other limits include light, nutrients, circulation and temperature.
Phytoplankton
Brian E. Cole has written: 'Phytoplankton productivity, respiration, and nutrient uptake and regeneration in the Potomac River, August 1977 - August 1978' -- subject(s): Phytoplankton
The idea behind the age limits is to give everyone an equal chance and ensure productivity.
Trevor Platt has written: 'Primary productivity measurements in St. Margaret's Bay, 1968-1970' -- subject(s): Primary productivity (Biology) 'Computer analysis of beam handling systems for a linear accelerator' -- subject(s): Electron beams, Electrons, Matrices, Particle accelerators, Physics Theses, Scattering 'Some current problems in marine phytoplankton productivity' -- subject(s): Phytoplankton
Ronald R. H Cohen has written: 'Phytoplankton dynamics of the fresh, tidal Potomac River, Maryland, for the summers of 1979 to 1981' -- subject(s): Ecology, Phytoplankton, Algae, Vegetation dynamics 'Primary productivity by phytoplankton in the tidal, fresh Potomac River, Maryland, May 1980 to August 1981' -- subject(s): Phytoplankton
Charles S. Yentsch has written: 'Plankton production' -- subject(s): Marine phytoplankton, Primary productivity (Biology)
sure-- there are no limits on either other than time constraints and/ or productivity
Mary Louise Cleave has written: 'Effects of oil shale leachate on phytoplankton productivity' -- subject(s): Effect of salts on Plants, Environmental aspects, Environmental aspects of Oil-shales, Freshwater algae, Freshwater productivity, Oil-shales
Phytoplankton and zooplankton
John Victor Rowney has written: 'Gradient analysis of phytoplankton productivity and chemical parameters in polluted and other nearshore habitats' -- subject(s): Oceanography
phytoplankton. phytoplankton.
whales