Nutrient limitation on algal growth in the eau gallie river

1974 ◽  
Vol 12 (5) ◽  
pp. 587-593
Author(s):  
R. G. Hoffman ◽  
J. A. Lasater ◽  
L. W. Houk
Keyword(s):  
Nutrient Limitation ◽  
Algal Growth

Linkage between Epilithic Algal Growth and Water Column Nutrients in Softwater Lakes

1992 ◽  
Vol 49 (8) ◽  
pp. 1641-1649 ◽  
Author(s):  
G. Winfield Fairchild ◽  
John W. Sherman
Keyword(s):  
Nutrient Limitation ◽  
Water Column ◽  
Chlorophyll A ◽  
Standing Crop ◽  
Crop Production ◽  
Dissolved Inorganic Carbon ◽  
Inorganic Nitrogen ◽  
Algal Growth ◽  
Acidic Lakes ◽  
Softwater Lakes

We examined the dependence of epilithic algal standing crop, production, and nutrient limitation upon water column nutrients in 12 softwater lakes of northeastern Pennsylvania. Elevated dissolved inorganic nitrogen accompanied low dissolved inorganic carbon in the more acidic lakes, while P varied little within the study area. The growth of epilithon on clay flower pot substrata diffusing combinations of N (NaNO3), P (Na2HPO4), and C (NaHCO3) was compared with growth on control substrata to evaluate which of the three nutrients limited growth in each lake. Standing crop accrual as chlorophyll a on control substrata averaged 0.8 μg/cm2, with little variation among lakes. Nutrient limitation of growth, however, was strongly related to lake alkalinity. Chlorophyll a was typically enhanced by N and/or P only in lakes with alkalinity greater than ~100 μeq/L and responded strongly to C enrichment in the two most acidic lakes. Combined addition of all three nutrients produced the largest chlorophyll a accrual in all 12 lakes. Invertebrate grazer biomass, dominated by chironomids in the more acidic lakes and by snails at higher alkalinity, was negatively related to chlorophyll a on these NPC substrata (r = −0.57, p = 0.05) and may have reduced algal standing crop well below nutrient-sustainable levels in some lakes.

Nutrient limitation of algal growth and nitrogen fixation in a tropical alpine lake, Lake Titicaca (Peru/Bolivia)

1985 ◽  
Vol 15 (2) ◽  
pp. 185-195 ◽  
Author(s):  
W. A. WURTSBAUGH ◽  
W. F. VINCENTR ◽  
R. ALFARO TAPIA ◽  
C. L. VINCENT ◽  
P.J. RICHERSON
Keyword(s):  
Nitrogen Fixation ◽  
Nutrient Limitation ◽  
Algal Growth ◽  
Alpine Lake ◽  
Lake Titicaca ◽  
Tropical Alpine

Epilithic algal abundance in relation to anthropogenic changes in phosphorus bioavailability and limitation in mountain rivers

2005 ◽  
Vol 62 (1) ◽  
pp. 174-184 ◽  
Author(s):  
Michelle F Bowman ◽  
Patricia A Chambers ◽  
David W Schindler
Keyword(s):  
Nutrient Limitation ◽  
Inorganic Nitrogen ◽  
Algal Growth ◽  
Point Sources ◽  
Strongly Correlated ◽  
Mountain Rivers ◽  
Nutrient Additions ◽  
P Limitation ◽  
Naturally Occurring ◽  
Algal Abundance

Low-level cultural eutrophication (0.1–3.8 µ·L–1 increase in total phosphorus (TP)) of oligotrophic mountain rivers resulted in 4- to 30-fold increases in benthic algal abundance. Because anthropogenic P was more bioavailable than naturally occurring P, there were higher algal abundances downstream relative to upstream of nutrient point sources at a given P concentration. Neither TP nor soluble reactive P concentrations were indicative of P bio availability. Of the measures studied, epilithic alkaline phosphatase activity was most strongly correlated with algal abundance, most indicative of P bioavailability and thus the most precise indicator of P limitation. Although changes in dissolved inorganic nitrogen (DIN) to P ratios in river water and carbon (C) to P ratios in epilithon were consistent with changes in algal abundance and nutrient limitation, published water DIN to TP and tissue C to P ratio thresholds did not always yield accurate predictions of the type or degree of nutrient limitation. Epilithic N to P ratios and algal growth on nutrient-diffusing substrates were also inexact measures of epilithic nutrient limitation but, unlike other measures, were not strongly correlated with algal abundance. Thus, the predictability of the benthic algal response to anthropogenic nutrient additions in oligotrophic rivers will be improved by using measures indicative of both nutrient limitation and bioavailability.

scholarly journals Differential inter- and intra-specific responses of Aphanizomenon strains to nutrient limitation and algal growth inhibition

2011 ◽  
Vol 33 (10) ◽  
pp. 1606-1616 ◽  
Author(s):  
D. R. de Figueiredo ◽  
A. M. M. Goncalves ◽  
B. B. Castro ◽  
F. Goncalves ◽  
M. J. Pereira ◽  
...  
Keyword(s):  
Growth Inhibition ◽  
Nutrient Limitation ◽  
Algal Growth ◽  
Algal Growth Inhibition

Effects of nutrients on algal growth in West Point Lake, Georgia

1978 ◽  
Author(s):  
R.N. Cherry ◽  
B.W. Lium ◽  
W.T. Shoaf ◽  
J.K. Stamer ◽  
R.E. Faye
Keyword(s):  
Algal Growth ◽  
West Point
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