Abstract
Four acid-sensitive lakes were studied. N enrichment generally caused a greater biomass response than P, although N + P almost always yielded the greatest effect and co-limitation was likely in two of the lakes. Predictions based on DlN:TP ratios generally agreed with the growth bioassays; TN:TP and DlN:SRP were not useful and could be misleading. Atmospheric deposition could satisfy most of the daily algal N demand and increase the fertility of these lakes. Results suggest that although water quality protection based solely on P may not protect against this non-point source of nutrients, without these control strategies, P inputs would be expected to have a disproportionately greater stimulation of phytoplankton growth. -from Authors
Original language | English (US) |
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Pages (from-to) | 1281-1296 |
Number of pages | 16 |
Journal | Canadian Journal of Fisheries and Aquatic Sciences |
Volume | 51 |
Issue number | 6 |
DOIs | |
State | Published - 1994 |