scholarly journals Modeling phytoplankton growth rates and chlorophyll to carbon ratios in California coastal and pelagic ecosystems

2010 ◽  
Vol 115 (G4) ◽  
Author(s):  
Qian P. Li ◽  
Peter J. S. Franks ◽  
Michael R. Landry ◽  
Ralf Goericke ◽  
Andrew G. Taylor
Keyword(s):  
Growth Rates ◽  
Phytoplankton Growth ◽  
Pelagic Ecosystems

Food-web manipulations influence grazer control of phytoplankton growth rates in Lake Michigan

1987 ◽  
Vol 9 (5) ◽  
pp. 891-899 ◽  
Author(s):  
Robert M. Dorazio ◽  
James A. Bowers ◽  
John T. Lehman
Keyword(s):  
Food Web ◽  
Growth Rates ◽  
Lake Michigan ◽  
Phytoplankton Growth

scholarly journals Universal response pattern of phytoplankton growth rates to increasing CO 2

2020 ◽  
Vol 228 (6) ◽  
pp. 1710-1716
Author(s):  
Allanah J. Paul ◽  
Lennart T. Bach
Keyword(s):  
Growth Rates ◽  
Response Pattern ◽  
Phytoplankton Growth

scholarly journals Temperature Dependence of Freshwater Phytoplankton Growth Rates and Zooplankton Grazing Rates

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1591
Author(s):  
Jennifer Pulsifer ◽  
Edward Laws
Keyword(s):  
Temperature Dependence ◽  
Chlorophyll A ◽  
Growth Rates ◽  
Eutrophic Lake ◽  
Phytoplankton Growth ◽  
Type I ◽  
Zooplankton Grazing ◽  
Temperature Range ◽  
Freshwater Phytoplankton ◽  
Louisiana State University

Phytoplankton growth rates and zooplankton grazing rates were estimated on 16 occasions over a period of 17 months in University Lake, a highly eutrophic lake on the campus of Louisiana State University. Phytoplankton growth rates and chlorophyll a concentrations averaged 1.0 ± 0.2 d−1 and 240 ± 120 mg m−3, respectively. Chlorophyll a concentrations were at or above the inflection point of the Holling type I curve that described the relationship between zooplankton grazing rates and chlorophyll a concentrations. In most cases, it was necessary to dilute lake water by more than a factor of 4 before zooplankton grazing rates became sensitive to chlorophyll a concentrations. Chlorophyll a concentrations were positively correlated with temperature and were roughly fourfold higher at 30 °C than at 15 °C. An analysis of the temperature dependence of the growth rates and grazing rates in this study and 87 other paired estimates of limnetic phytoplankton growth rates and zooplankton grazing rates revealed virtually identical temperature dependences of growth rates and grazing rates that were very similar to the temperature dependence predicted by the metabolic theory of ecology. Phytoplankton growth rates exceeded zooplankton grazing rates by 0.13 ± 0.05 d−1 at all temperatures over a temperature range of 8.5–31.5 °C. The Q10 for both phytoplankton growth rates and zooplankton grazing rates was 1.5 over that temperature range.

scholarly journals Modeling phytoplankton growth rates

1996 ◽  
Vol 18 (7) ◽  
pp. 1269-1269
Author(s):  
Jeffrey D. Haney ◽  
George A. Jackson
Keyword(s):  
Growth Rates ◽  
Phytoplankton Growth

A new method for estimating phytoplankton growth rates and carbon biomass

1981 ◽  
Vol 62 (1) ◽  
pp. 73-79 ◽  
Author(s):  
D. G. Redalje ◽  
E. A. Laws
Keyword(s):  
Growth Rates ◽  
Phytoplankton Growth ◽  
New Method ◽  
Carbon Biomass

Functional Interaction of Phytoplankton and Zooplankton along the Trophic Gradient in Green Bay, Lake Michigan

1991 ◽  
Vol 48 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Paul E. Sager ◽  
Sumner Richman
Keyword(s):  
Growth Rates ◽  
Lake Michigan ◽  
Algal Species ◽  
Phytoplankton Growth ◽  
Calanoid Copepods ◽  
Trophic Gradient ◽  
Functional Interaction ◽  
Trophic Conditions ◽  
Green Bay

The functional interaction of phytoplankton and zooplankton, expressed in terms of the numerical difference between phytoplankton growth rates per day (in situ,14C method) and zooplankton grazing rates per day (in situ feeding experiments), was studied along the trophic gradient in Green Bay, Lake Michigan. Growth–grazing differences increased with trophic conditions, averaging 0.08 for the water column in the meso-oligotrophic northern bay and 0.56 in the eutrophic southern bay for the summers of 1986, 1987, and 1988. Eutrophic conditions produced dominance of growth by large-size cyanobacteria and low grazing rates by microcrustaceans Small and occasionally negative growth–grazing differences in the meso-oligotrophic region were associated with dominance of larger cladocerans and calanoid copepods and small algal species Phytoplankton growth rates in the northern bay averaged about 28% those of the eutrophic region. A unimodal phytoplankton growth response to increased grazing was observed in the northern bay, suggesting variation in positive (growth stimulating) and negative (grazing losses) effects of zooplankton on the phytoplankton.

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