Relationships Between Dipteran Emergence and Phytoplankton Production in the Experimental Lakes Area, Northwestern Ontario. Davies, I., J. Canadian Journal of Fisheries and Aquatic Sciences, 37(3):523-533, 1980. ![Relationships Between Dipteran Emergence and Phytoplankton Production in the Experimental Lakes Area, Northwestern Ontario [pdf]](https://bibbase.org/img/filetypes/pdf.svg "pdf")
Paper abstract bibtex Dipteran emergence was monitored at the Experimental Lakes Area (ELA) between 1973 and 1977 in seven lakes of difyerent trophic status. The data were used to develop a nurnber of equations which related the quantity and spatial distribution of average annual emergence to lake productivity. These models explained >94% of the variation in mean emergent biomass among lakes or >76% of the variation in numbers of emergent Diptera in terms of phyto- plankton production or phosphorus loading. On average, ELA lakes produced 40.8 dipteran adults (9 mg dry weight) per gram carbon tixed by phytoplankton. A single equation for all lakes predicts the surface distribution of emergent biomass, relative to lake depth at any location, from vertical profiles of phytoplankton production. The mean size of dipteran adults was related to lake depth at the point of emergence and average phytoplankton production. An empirical model which used data on the vertical profile, and lake average, of phytoplailkton production was developed to predict the number of Diptera emerging from each depth. The maximum depth of emergence was related to depth of the euphotic zone and average phyto- plankton production in each lake. lnitial tests suggested that the models may provide useful predictions of dipteran emergence for a wider spectrum of lakes.
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title = {Relationships Between Dipteran Emergence and Phytoplankton Production in the Experimental Lakes Area, Northwestern Ontario},
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year = {1980},
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abstract = {Dipteran emergence was monitored at the Experimental Lakes Area (ELA) between 1973 and 1977 in seven lakes of difyerent trophic status. The data were used to develop a nurnber of equations which related the quantity and spatial distribution of average annual emergence to lake productivity. These models explained >94% of the variation in mean emergent biomass among lakes or >76% of the variation in numbers of emergent Diptera in terms of phyto- plankton production or phosphorus loading. On average, ELA lakes produced 40.8 dipteran adults (9 mg dry weight) per gram carbon tixed by phytoplankton. A single equation for all lakes predicts the surface distribution of emergent biomass, relative to lake depth at any location, from vertical profiles of phytoplankton production. The mean size of dipteran adults was related to lake depth at the point of emergence and average phytoplankton production. An empirical model which used data on the vertical profile, and lake average, of phytoplailkton production was developed to predict the number of Diptera emerging from each depth. The maximum depth of emergence was related to depth of the euphotic zone and average phyto- plankton production in each lake. lnitial tests suggested that the models may provide useful predictions of dipteran emergence for a wider spectrum of lakes.},
bibtype = {article},
author = {Davies, I. J.},
journal = {Canadian Journal of Fisheries and Aquatic Sciences},
number = {3}
}
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