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Seasonal and spatial patterns in macro‐ and micronutrient limitation in Joe Pool Lake, Texas
Author(s) -
Sterner Robert W.
Publication year - 1994
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1994.39.3.0535
Subject(s) - nutrient , environmental science , stratification (seeds) , micronutrient , eutrophication , limiting , phosphorus , ecology , hydrology (agriculture) , biology , geology , chemistry , agronomy , geotechnical engineering , organic chemistry , mechanical engineering , seed dormancy , germination , dormancy , engineering
The roles of nitrogen, phosphorus, silicon, and trace nutrients in limiting algal growth were studied over a 1‐yr period in three sites of a recently impounded, warm monomictic reservoir in north‐central Texas using factorial dilution assay experiments. When lake temperature was >15°C, nutrients limited realized growth rates to half or less of potential growth. Nutrient limitation was obliterated in the fall by floods. Density stratification was not a prerequisite to nutrient limitation in spring. Both macro‐ and micronutrients were important in terms of frequency of experiments showing limitation and in terms of quantitative degree of limitation. Horizontal variability in the degree of limitation was absent; however, shallower sites showed more incidence of multiple nutrient limitation compared to a deep, near‐dam site.