. The Canadian field-naturalist. fim 12 10. 11 Figure 3. (1) Navicitla exigua; (2) Eunotia arcus; (3-4) Eunotia exigua; (5) Eunotia diodon; (6) Eunotia parallela; (7) Navicula vulpina; (8) Frustulia rhomboides; (9) Stauroneis nobilis; (10) Cyclotella kuetziugiana; (11) Tabellaria fenestrata; (12) Tropidoneis sp. aff. lepidoptera; (13) Eunotia robusta. Lake and are possible indicators of the lake's past oligotrophic conditions when trout and ciscoes were its dominant fish species (Rubec 1975). Thus both oligotrophic and eutrophic species temporarily co-exist in Meach Lake increasing its total a
. The Canadian field-naturalist. fim 12 10. 11 Figure 3. (1) Navicitla exigua; (2) Eunotia arcus; (3-4) Eunotia exigua; (5) Eunotia diodon; (6) Eunotia parallela; (7) Navicula vulpina; (8) Frustulia rhomboides; (9) Stauroneis nobilis; (10) Cyclotella kuetziugiana; (11) Tabellaria fenestrata; (12) Tropidoneis sp. aff. lepidoptera; (13) Eunotia robusta. Lake and are possible indicators of the lake's past oligotrophic conditions when trout and ciscoes were its dominant fish species (Rubec 1975). Thus both oligotrophic and eutrophic species temporarily co-exist in Meach Lake increasing its total algal diversity. (3) The third reason for the lake's high periphyton diversity is its large variety of habitats such as the extensive area of higher aquatic plant species at the north end of the lake (Aiken and Gillett 1974), the silt-laden bays, the sandy beaches, and the rock out-. 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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