Oscillatoriaceae


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Synonyms for Oscillatoriaceae

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Division/Especie LOCALIDADES 1 2 3 4 CYANOBACTERIA Clase Cyanophyceae Orden Oscillatoriales Oscillatoriaceae 1.
The percentage of micro algae in the experimental tank the dominant position is 60% oscillatoriaceae.
Significance of the relation between relative abundance of Oscillatoriaceae expressed as a fraction of the total algal biovolume and various environmental factors.
Relative abundance of Oscillatoriaceae is expressed as percentage of the total algal biovolume.
There is no significant relationship between the relative abundance of Oscillatoriaceae and the concentration of phosphorus in our data set (Table 1).
The above results suggest that it is the low light level rather than the high nutrient availability per se that leads to dominance by Oscillatoriaceae in eutrophic situations.
Lakes where Oscillatoriaceae dominate tend to be shady compared to lakes of the same nutrient level where these algae are rare [ILLUSTRATION FOR FIGURE 4 OMITTED].
The patterns in the field data suggest that shade promotes Oscillatoria dominance [ILLUSTRATION FOR FIGURE 1 OMITTED], but that Oscillatoriaceae also promote shady conditions [ILLUSTRATION FOR FIGURES 4 AND 5 OMITTED].
The field patterns further suggest that the probability that Oscillatoriaceae will dominate the community depends strongly on the shade level.
In the second part we use a mathematical model to show that competition between Oscillatoriaceae and other algae is a plausible explanation for this hysteresis in view of their physiological characteristics measured in the laboratory.
Although the field patterns as well as the model results indicate that nutrients, through their effect on shade, influence the competition between Oscillatoriaceae and other algae, it is clear that temperature and flush rate are also important for the competitive balance.