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DESCRIPTIONS OF EASTERN NORTH AMERICAN SPECIES OF BAETINE MAYFLIES WITH PARTICULAR REFERENCE TO THE NYMPHAL STAGES
During the course of investigation of the mayfly fauna in streams in Ontario and Quebec it became apparent that many of the nymphs of the Baetinae are not known although the adults of most have beenExpand
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CONTRIBUTION TO THE BIOLOGY OF ONTARIO MAYFLIES WITH DESCRIPTIONS OF NEW SPECIES
During the summers of 1928 and 1929 a study was made of the mayfly fauna of several streams and lakes in Ontario, particular attention being given to associating the nymphal stages with the adults byExpand
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Evidence of Acidification Effects on Stream Insect Communities in Central Ontario Between 1937 and 1985
Aquatic insect surveys were conducted in two low-alkalinity streams in Algonquin Provincial Park, Ontario, Canada, that were first studied 48 yrs ago (1937–42). At a site where current spring pH fl...
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POST EMBRYOLOGICAL DEVELOPMENT OF EPHEMEROPTERA (MAYFLIES). EXTERNAL CHARACTERS ONLY
The development of external structures is followed from hatching to maturity. The life histories of two species Stenonema canadense Wlk. and Ephemera simulans Wlk. are described in detail and lessExpand
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THE NYMPH OF THE MAYFLY GENUS CINYGMA EATON
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Effects of Forest Spraying with DDT on Aquatic Insects of Salmon Streams in New Brunswick
Sampling of emerging aquatic insects by cage-traps on a 24-hr basis showed the effects on the stream fauna of spraying forests with DDT at in June. Except for a few individuals that presumablyExpand
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Effect of Forest Spraying with DDT on Aquatic Insects of Salmon Streams
Abstract Number and volume of aquatic insects emerging from tributaries of the Miramichi River of northern New Brunswick, where forest-covered watersheds had been sprayed from the air with 0.5 poundsExpand
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