Effects of temperature on growth rates of fungi from subantarctic Macquarie Island and Casey, Antarctica

Polar Biology ◽  
1990 ◽  
Vol 10 (4) ◽  
Author(s):  
Elizabeth Kerry
Keyword(s):  
Growth Rates ◽  
Macquarie Island ◽  
Effects Of Temperature

scholarly journals Comparative growth rates of cultured marine dinoflagellates in the genus Symbiodinium and the effects of temperature and light

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0187707 ◽  
Author(s):  
Anke Klueter ◽  
Jennifer Trapani ◽  
Frederick I. Archer ◽  
Shelby E. McIlroy ◽  
Mary Alice Coffroth
Keyword(s):  
Growth Rates ◽  
Marine Dinoflagellates ◽  
Effects Of Temperature

scholarly journals Effects of temperature on individual growth rate and body size of a freshwater amphipod

1998 ◽  
Vol 76 (6) ◽  
pp. 1107-1116 ◽  
Author(s):  
Vadim E Panov ◽  
Donald J McQueen
Keyword(s):  
Growth Rates ◽  
Negative Relationship ◽  
Maximum Size ◽  
Growth Efficiency ◽  
Individual Growth ◽  
Summer Temperatures ◽  
Individual Growth Rate ◽  
Natural Temperature ◽  
Effects Of Temperature ◽  
The Relationship

Individual growth rates of the freshwater amphipod Hyalella azteca (Saussure) were measured in the littoral zone oftwo small oligotrophic Ontario lakes and in growth experiments over a natural temperature gradient (10, 15, 20, and 238C).Field observations showed that a temperature of 208C is important for both the induction and termination of reproductiveresting stages in H. azteca. Growth rates were more affected by temperature in small than in large individuals. Growthparameters are related to rearing temperature by linear regressions, which can be used as a simple model for bioenergeticscalculations in crustaceans. A negative relationship between water temperature and maximum size attained by the amphipodswas found. The largest adults were absent in studied populations when summer temperatures were high, and this phenomenon,which has also been observed in other aquatic invertebrates, was bioenergetically determined. Energy-budget estimationsshowed negative net growth efficiency (K2) in the largest adults at temperatures above 208C. The relationship between K2andtemperature showed a dome-shaped pattern, K2values for larger amphipods being maximal at lower temperatures. Seasonalmigrations of adult H. azteca from shallow littoral to deeper cold habitats, observed in lakes during the warmest periods, appearto be temperature-induced and bioenergetically advantageous, despite probable increases in predation risk experienced inspatially simple deep-water habitats.

EFFECTS OF TEMPERATURE AND SUNLIGHT ON THE RATE OF ELONGATION OF STEMS OF MAIZE AND GLADIOLUS

1939 ◽  
Vol 17c (11) ◽  
pp. 388-409 ◽  
Author(s):  
A. G. McCalla ◽  
J. R. Weir ◽  
K. W. Neatby
Keyword(s):  
Relative Humidity ◽  
Growth Rates ◽  
Stem Elongation ◽  
Correlation Coefficients ◽  
Positive Association ◽  
Significant Negative Correlation ◽  
Time Of Day ◽  
Depressing Effect ◽  
Significant Positive Association ◽  
Effects Of Temperature

Measurements of the height of the main stems of maize and gladiolus plants were made at four-hour intervals starting at 4 a.m. The increases in elongation were analyzed statistically, together with mean temperature, hours of sunlight, and mean relative humidity.Partial correlation coefficients showed that there was a highly significant positive association between the rate of stem elongation (growth) and temperature, regardless of the time of day, the variations in temperature accounting for from 40 to 70% of the variability in growth rates. There was likewise a significant negative correlation between growth and sunlight, but sunlight was apparently effective only during the midday periods (8 a.m. to 4 p.m.). The depressing effect of sunlight on the growth of gladiolus was approximately four times as great as on maize. This depressing effect on maize was entirely removed by shading the plants with light white cotton.Variations in relative humidity were only slightly associated with growth rates. No significant effect was observed for any of the periods. It seems possible that these factors might be more important under conditions of deficiency in soil moisture.The approximate minimum temperature at which growth look place was 40° F.

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