Index 275 



Drum, 



in catch-out ponds, 257 



sound production of, 219 



standing crop of, 64 

 Duck Pond (Illinois), 65 

 Dyche, L. L., 6, 104 



Ellis, M. M., 10 

 Elritze, 



color vision of, 213 



observations of, 217 



odor jDcrception of, 221 

 Endrin, 148 

 Environment, 



decrease in favorability of, 43 

 EPN, 148 

 Erie, Lake, 



soil conservation on water slied, 1 

 Escanaba Lake (Wise), 208 

 Esclimever, P., 103, 123 

 Eschmeyer, R. W., 6, 157, 232 



Feeding migration, of perch, 



in L. Mendota, 231 

 Feeding stoppage, 



from overeating, 84 

 Ferguson, R. G., 227 

 Fertilization, lake, 162 



algae stimulated by, 163 



competition between filamentous and 

 plankton algae, 163 



dangers of, 166, 167 



dosage of, for southeast, 163 



for starting new ponds, 168 



interference with sunfish nest building, 

 165 



lime, 164 



manganese, 164 



nitrogen, 165 



no general recommendation for, 167 



phosphorous, 165 



potassium, 164 



standing crop increase in Illinois, 167 



sunfish nests and inorganic salts, 165 

 Fin n Feather Club (Dundee, 111. ), 259 

 Fish, 



cold-water species, 45 



desirable sizes of, 190 



exported to South Africa, 81 



for sale, 263 



no shortage of, 7 



relative plumpness of, 75 



useful sizes of, 70 



warm-water species, 45-46 

 Fish, death of, 



in spring, 201 



in summer, 201 



Fish-eating birds, 



at Rcclfoot L., 198 

 "Fished-out" lakes, 



contain wise fish, 131 

 Fish farming, 264 



carp, buflialo and channel catfish, 264 



in rice fields, 264 

 Fish "intelligence," 245 

 Fish management service, 265 

 Fish ponds, artificially fed, 259 



with emerald shiners, 259 



with prepared food, 260, 261 

 Fish population adjustment, 150 



partial poisoning, 150 



use of nets and seines, 150 

 Fish population removal, 140 



by draining, 140 



optimum time for, 141 



removing fish from water, 140 



by rotenone treatment, 142 



storing live fish, 141 

 Fishermen's baits, 



earthworms and other invertebrates, 

 253, 254 



minnows, 254 



supplying, 253 

 Fishing, 



causes for poor, 7, 131 



changes in, 110 



publicity, for reservoirs, 12 



trespass-rights, 256 



year-round, in Norris Reservoir, 11 



year-round, in Tennessee and Ohio, 1 1 

 Fishing clubs, 



"executives," 255 



fishing-lake investments, 255 



organized sportsmen's clubs, 256 

 Fishing, commercial, 



effects of, 197 



an experiment in, 196, 197 



restricted by anglers, 198 

 Fishing docks, floating, 261 



on southwestern reservoirs, 261 



winter fishing on Fort Gibson Reser- 

 voir (Okla.),263 

 Fishing expenditures, 



relative amounts of, 252 

 Fishing lakes, 



recreational values of, 253 

 Fishing optimum, 



related to rapid growth and expanding 

 population, 196 

 Fishing pressure, 



reaction of fishes to, 193 



seasonal, 191, 192 



types of, 193 

 Fishing pressure vs. yield, 190 



