The Ecology of Running WatersFor advanced students. |
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Page 260
... Diptera Chironomidae larvae 31.3 45'9 Chironomidae pupae 0.2 2.6 Chaoborus larvae 4.8 2.9 Chaoborus pupae 1.6 Bezzia larvae 2 : 4 0.3 Other immature Diptera 4.5 0.3 ( Total immature Diptera ) ( 43.2 ) ( 53.6 ) Plecoptera nymphs 2.5 9.4 ...
... Diptera Chironomidae larvae 31.3 45'9 Chironomidae pupae 0.2 2.6 Chaoborus larvae 4.8 2.9 Chaoborus pupae 1.6 Bezzia larvae 2 : 4 0.3 Other immature Diptera 4.5 0.3 ( Total immature Diptera ) ( 43.2 ) ( 53.6 ) Plecoptera nymphs 2.5 9.4 ...
Page 463
... ( Diptera : Simuli- idae ) . Can . Ent . 92 , 81-4 . 186 . 1961. Ecology of two Prosimulium species ( Diptera ) with reference to their ovarian cycles . Ibid . 93 , 1113-40 . 286 , 289 . 1965. The structure of certain atypical Simuliidae ...
... ( Diptera : Simuli- idae ) . Can . Ent . 92 , 81-4 . 186 . 1961. Ecology of two Prosimulium species ( Diptera ) with reference to their ovarian cycles . Ibid . 93 , 1113-40 . 286 , 289 . 1965. The structure of certain atypical Simuliidae ...
Page 468
... ( Diptera : Simuliidae ) of the agricultural areas of Manitoba , Saskatchewan , and Alberta . Int . Congr . Ent . 10 , 3 , 819–23 . 273 , 275 , 405 . 1959a . Rearing black flies in the laboratory ( Diptera : Simuliidae ) . Can . Ent . 91 ...
... ( Diptera : Simuliidae ) of the agricultural areas of Manitoba , Saskatchewan , and Alberta . Int . Congr . Ent . 10 , 3 , 819–23 . 273 , 275 , 405 . 1959a . Rearing black flies in the laboratory ( Diptera : Simuliidae ) . Can . Ent . 91 ...
Contents
Water flow and stream channels I | 1 |
Physical characteristics of flowing water | 28 |
Chemical characteristics of flowing water | 36 |
Copyright | |
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abundant adults Africa algae amount amphipods animals aquatic areas Baetis benthic benthos biological biomass breeding brown trout caddis-worms carbon cent channel Chironomidae cm./sec Creek current speed cycles cyprinids darters detritus diatoms Diptera discharge downstream drift ecology effect eggs emergence Ephemerella Ephemeroptera Europe factor fairly fauna feed fish flow freshwater Gammarus genera genus Gessner gravel growth habitat hatch Hydropsyche Hynes important increase insects invertebrates lakes large numbers larvae less Limnol live mayflies Minckley move normal North America number of species numbers nymphs observed occur Oligochaeta organic matter oxygen particles period periphyton plankton plants Plecoptera populations probably production Rhithrogena rhithron riffles rivers and streams rotifers running water running-water salmon samples sand season seen Shadin shown silt similar Similarly Simuliidae Simulium small streams snails specimens spring stoneflies stones stony stream bed stream-dwelling substrata substratum summer surface temperature tend Trichoptera trout types upstream varies VIII winter zone