. The Canadian field-naturalist. White Sturgeon. Green Sturgeon I i',i ri 2 Identification ol White and Green Sturgeon \ii'-i Galbraith (personal communication) I"he .â mi. (arrow) is poiterioi i" the insertion "i the pelvii ims m the White Sturgeon and anterioi i the I"!'.ii insertion in the'ireen Sturgeon Distribution The White Sturgeon is restricted to large coastal river systems on the northwest coast of North America. While a verified report from Alaska exists, sizable populations of this species appear to be limited to three river systems, the Sacramento, Columbia and
. The Canadian field-naturalist. White Sturgeon. Green Sturgeon I i',i ri 2 Identification ol White and Green Sturgeon \ii'-i Galbraith (personal communication) I"he .â mi. (arrow) is poiterioi i" the insertion "i the pelvii ims m the White Sturgeon and anterioi i the I"!'.ii insertion in the'ireen Sturgeon Distribution The White Sturgeon is restricted to large coastal river systems on the northwest coast of North America. While a verified report from Alaska exists, sizable populations of this species appear to be limited to three river systems, the Sacramento, Columbia and Fraser rivers. Workers in Washing- ton and Oregon report sturgeon populations likely exist in smaller rivers along their coasts, but no published data are available. In Canada, White Sturgeon occur throughout most of the Fraser River system and in the upper Columbia River (Figure 3). In the Fraser River, the species has been recorded from the delta upstream to, and including, the northern tributaries [, Nechako River; but there are no records from the Thompson River system (perhaps due to a lack o\ study)]. There are, however, anecdotal reports o\' sturgeon from Shushwap Lake (South Thompson system) and Clemens and Wilby (1946) report White Sturgeon "distributed along the coast . . from the Fraser to the Skeena . . , and in the north Thompson", with no documentation. Hart (1973) repeats the coastal distribution, again without documentation. In the Columbia River, White Sturgeon have been recorded throughout, including the Mica area; but apparentl) due to recent dam construction, reproducing populations may now be restricted to waters below the Revelstoke Dam. Reports of sturgeon persist from the large lakes in British Columbia, such as Okanagan Lake; however, verification b) identified catches are absent. ["here are valid records ol "sturgeon" from the Skeena, Nass and Yukon Rivers, but in all cases where the species identification could be checke
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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
