Influence of water temperature and nitrogen to phosphorus ratios on the dominance of blue green algae in Lake St. George, Ontario
Influence of water temperature and nitrogen to phosphorus ratios on the dominance of blue green algae in Lake St. George, Ontario
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DOI：
10.1139/f87-073
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发表时间：
1987-03
影响因子：
2.4
通讯作者：
D. Mcqueen;D. Lean
中科院分区：
文献类型：
--
作者：
D. Mcqueen;D. Lean
Data collected at Lake St. George, Ontario, over five summers spanning a period of 13 yr showed that there was no correlation between percent blue-green algal composition and the ratio of total nitrogen (TN) to total phosphorus (TP), However, percent blue-green algae was positively correlated with temperature and negatively correlated with nitrate nitrogen (NO3-N), total inorganic nitrogen (TIN), and the ratio of NO3-N:TP. Multiple correlations involving percent blue-green algae (dependent variable) with respect to temperature, in combination with one of NO3-N, TIN, NO3-N:TP, or TIN:TP, were also significant. In all cases, temperature effects accounted for most of the explained variation. The strongest correlation was found for the multiple regression involving percent blue-green algae versus temperature and the NO3-N: TP ratio. The pattern that emerged from the Lake St. George data set was that when temperature exceeded 21 °C and the ratio of NO3-N:TP was below 5:1, the likelihood of a blue-green algal b...
