. Bulletin. vegetation at shallower stations) Number per square yard Pounds per acre Vivipara contectoides Musculium transversumPisidium limosaA. emarginata Leeches (small spp.)Chironomid larvae (large spp.) Total 496 Thompson Lake. Aug. 12—20, 1914. Bottom Fauna8 Collections,* Depth, 7 to 9 ft.(No vegetation; all mud bottom) Number per square yard Pounds per acre Campeloma subsolidumLioplax subcarinatus Valvata transversumP
. Bulletin. vegetation at shallower stations) Number per square yard Pounds per acre Vivipara contectoides Musculium transversumPisidium limosaA. emarginata Leeches (small spp.)Chironomid larvae (large spp.) Total 496 Thompson Lake. Aug. 12—20, 1914. Bottom Fauna8 Collections,* Depth, 7 to 9 ft.(No vegetation; all mud bottom) Number per square yard Pounds per acre Campeloma subsolidumLioplax subcarinatus Valvata transversumPisidium sp. Small Oligochaeta Small leeches Chlronomld larvae (large spp.) Chironomid larvae (small spp.)Palpomyia larvaeCaddis larvae All above cut-road. Thompson Lake, Aug. 12—20, 1914. Bottom Fauna 10 Collections,* Depth. 1 to 6 ft. No Vegetation (Eight collections, mud bottom; two collections, sandy). Amnicola limosa A. emarginata Valvata spp. Musculium transversum Pisidium sp. Small Oligochaeta Small leeches Chironomid larvae (large spp.) Caddis larvae Total 1468 All north of cut-road. 497 Thompson Lake, Aug. 12—20, 1914. Bottom Fauna 12 Collections,* Depth, 1 to 6 ft. All in Vegetation (Eleven collections, mud bottom; one collection, sandy) Number per square yard Pounds per acre Campeloma subsolidum Lioplax subcarinatus Vlvipara contectoides Amnicola limosa trace Valvata spp. Musculium transversum Pisidium sp. Small leeches Planarians trace Chironomid larvae (large spp.) Chironomid larvae (small spp.) Caddis larvae Caenis nvmphs trace Hyalella knickerbockeri ? All north of cut-road. Thompson Lake,* Aug
Size: 3411px × 733px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
