Aquatic life (Cont'd) 



chemical oxygen demand, p. 57 



cold water fish, p. 33 



currents, p. 35 



dissolved oxygen — fresh water, p. 33 



dissolved solids recommendation, p. 40 



floating materials, p. 48 



fresh water pH alkalinity, acidity, p. 32 



fresh water temperature effects, p. 32 



introduction to Subcommittee report, p. 29 



marine and estuarine, p. 35 



radioactive wastes, p. 49 



salinity, p. 35 



spawning migration, p. 31 



Subcommittee report, p. 28-110 



summary of recommendations, p. 32 



toxic substances, p. 56 



turbidity, p. 47 



warm water fish, p. 32 



zones of passage, p. 31 

 Aquatic plants 



emersed plants and nutrients, p. 52 



floating plants and nutrients, p. 53 



light penetration, p. 96 



marginal plants and nutrients, p. 52 



nuisance organisms and nutrients, p. 51 



nutrients and nuisance organisms, p. 78 



recommendation on nuisance growth, p. 56 



rooted plants and nutrients, p. 53 



salinity fluctuation effects, p. 95 



submerged plants and nutrients, p. 52 

 Aquatic weeds 



nuisance growth, p. 53 



nutrients, p. 53 

 Arid climates, p. 167 

 Arid lands 



humid areas, p. 172 



soil chemical properties, p. 173 

 Arkansas River Basin 



dissolved solids, p. 168 

 Arsenicals (pesticides) 



toxicity, p. 37 



toxicity — livestock, p. 135 

 Arsenic compounds 



phytotoxicity, p. 152 



toxicity — sea water, p. 85-86 

 Ascaris 



irrigation water, p. 161, 162 

 Aspergillosis 



prevention, p. 38 

 Asterionella 



phosphorus, p. 55 



Bacillary hemoglobinuria 



epidemiology, p. 139 



waterborne diseases, p. 139 



water pollution effects, p. 139 

 Bacillus anthracis, p. 139 

 Back Bay, Va. 



silts, p. 96 

 Bacteria 



farmstead water supplies — nonpathogenic, p. 123 



fresh water, p. 5 1 



nuisance-type growth, p. 51 



Sphaerotilus, p. 51 



stock water, p. 138 



see also Psychrophilic bacteria 

 Barriers 



zones of passage, p. 3 1 



Benthic flora 



ecosystem indicator, p. 54 



nutrients, p. 54 

 Beryllium 



phytotoxicity, p. 153 

 BHC 



toxicity, p. 37, 83 

 Bicarbonates 



alkalinity — waterfowl habitat, p. 94 



phytotoxicity, p. 156 

 Bioassay 



algae, p. 57 



dissolved solids, p. 40 



industrial wastes, p. 37 



oils, p. 46 



seawater, p. 80 



toxicity, p. 35, 58 



waste treatment, p. 37 

 Biochemical oxygen demand (BOD) 



aquatic life, p. 57 



farm wastes, p. 132 



irrigation water, p. 118, 166 



pulp wastes, p. 90 



Sphaerotilus, p. 5 1 



supplemental irrigation, p. 175 

 Biodegradation 



application factor, p. 37 

 Bioindicators 



fish, p. 115 



stock water, p. 115, 131, 131 

 Biological magnification 



water pollution, p. 81 

 Biological terms see Glossary 

 Boating 



recreation, p. 8 



waste water (pollution), p. 91 

 BOD see Biochemical oxygen demand 

 Boiler feed water, p. 191 



demineralization, p. 193 



heat exchanger, p. 192 



industrial water, p. 187, 188, 188, 194 



separation techniques, p. 193 



water consumption, p. 191, 192 



water properties, p. 189, 190, 194 



water quality, p. 191, 194 



water purification, p. 193 



water softening, p. 193 



water treatment, p. 193 

 Boilers, p. 191 



BOR see Bureau of Outdoor Recreation 

 Boron 



phytotoxicity, p. 153, 153 



public water supplies, p. 23 

 Botanicals 



toxicity, p. 37 

 Botulism 



waterfowl, p. 93 



wildlife transmission prevention, p. 38 

 Brackish water 



color, p. 75 



cooling water, p. 193 

 Brown algae see Phaeophyta 

 Bureau of Outdoor Recreation 



recreation, p. 7, 8 



Cadmium 



phytotoxicity, p. 153 

 toxicity — fresh water, p. 61 

 toxicity — sea water, p. 86 



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