Subject Index 509 



biological effects, 28 

 pond freezing, 61 



PH 



seasonal cycle, 87 



sediments, 98 

 Phalaropes, 283 

 Phosphatase, 117, 132 

 Phosphate sorption index (PSI), 

 137, 144, 149 



relation to algae, 149 

 Phosphorus 



addition. 111, 212 



algae hmited, 212 



algal bloom, 213 



algal cycling, 216-217 



available, 131 



bacteria, 133 



bacterial cycling, 9 



budget, 124 



buffering, 143-144 



Carex, 134-135, 362 



chemical fractions, 120 



colloidal, 130-131 



concentration prediction, 12 



controlled by sediments, 213 



cycling rates, 11, 127, 130 



decomposition losses, 41 



distribution, 145 



equilibrium concentration, 

 143 



exchange, sediment-water, 136 



excretion, 130, 132, 133 



flux, 126 



fractionation, 120-121, 139 



in model, 431, 444 



input, 10, 13 



interstitial water, 11, 124 



iron relationship, 11, 137, 139 



iron sorption, 11, 121 



leaching, 125 



luxury storage, 129 



meltwater, 125 



microcosm cycling, 383 



N fixation stimulation, 112 



oil pond, 392 



organic transformation, 



130-131 

 output, 10 



oxalate extractable, 137, 145 

 particulate, 132 

 photosynthesis control, 12 

 plants, 233 

 plant cycling, 43 

 plants limited, 45 

 primary production affected, 



11 

 protozoa, 9, 133 

 rainfall, 10, 13, 126 

 release by Carex, 134-135 

 resin exchangeable, 141 

 root uptake, 136, 240 

 sediment buffering, 150 

 sediment control, 146, 150, 



213 

 sediments, 10, 120, 124, 136, 



138, 141 

 sediments of trough, 124 

 soil, 43, 141, 239 

 soil exchange, 126 

 soil microbes, 239 

 soil water, 126 

 sorption, 11, 135-136, 138 

 sorption controls, 141 

 sorption isotherms, 137 

 supply rates, 150 

 total, sediment, 124 

 total, water, 124 

 turnover times, 11, 130, 135 

 uptake by biota, 1 1 

 water, control, 150 

 XP (low molecular weight 



pool), 130, 217 

 zooplankton cycling, 132-133, 



286 

 Photic zone, sediment, 71 

 Photoinhibition, temperature 



effect, 210 

 Photo-oxidation, phosphorus, 



