. The Canadian field-naturalist. 1992 McKiLLOP, Patterson, Delorme, and Nogrady: Saline Waters 455 Methods and Materials The Study Sites (Figure 1, 2a-d and Tables 1, 2 and 3) Biological and water samples were taken six times during 1988 and 1989 at twenty three saline sites identified along the western shore of Lake Winnipegosis. These sites were heuristically divided into four ecological categories based mainly on veg- etation, rate of discharge and filterable residue. Subsaline or fresh waters (Sites 3,9, 13, 14 and 19). The majority of these sites were fed by streams or runoff containing l
. The Canadian field-naturalist. 1992 McKiLLOP, Patterson, Delorme, and Nogrady: Saline Waters 455 Methods and Materials The Study Sites (Figure 1, 2a-d and Tables 1, 2 and 3) Biological and water samples were taken six times during 1988 and 1989 at twenty three saline sites identified along the western shore of Lake Winnipegosis. These sites were heuristically divided into four ecological categories based mainly on veg- etation, rate of discharge and filterable residue. Subsaline or fresh waters (Sites 3,9, 13, 14 and 19). The majority of these sites were fed by streams or runoff containing low concentrations of salt water (Figure 2a). Where waters pooled a pan was evident; otherwise these sites consisted simply of the stream bottom. The flow was slow and during the summer most sites dried up. Hyposaline salt marshes (Sites 1, 2,5,6,11,12 and 17) In these sites water chemistry varied greatly depending on the proportion of salt water to surface runoff. Although similar to fresh water marshes these sites had a barren pan (Figure 2b). The vegeta- tion was distributed in concentric zones at most sites. Mesosaline salt springs and salt seeps (Sites 4, 7, 8, 10, 15 and 21) The flow rate at the salt seeps was minimal: minute seepages serve as the salt water source. Only a few millimetres of water covered the pan which. Figure 1. Map of area showing location of study sites on western shore of Lake Winnipegosis, Manitoba. See Table 3 for site descriptions. made sampling difficult especially in summer when some sites almost dried up. Crystal encrustations of precipitates were often seen near the discharge Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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