. The Canadian field-naturalist. Natural history. 638 The Canadian Field-Naturalist Vol. 115. Figure 3. Distribution of the Atlantic Whitefish in Nova Scotia. The Tusket, Annis and Petite Riviere water- sheds known to support Atlantic Whitefish are shown as well as four records (•) outside these watersheds where specimens have been captured. 1 = Hall's Harbour, Kings County, 1958; 2 = Sissiboo River mouth, Digby County, 1919; 3 = Yarmouth Harbour, Yarmouth County, 1940; 4 Lehave River mouth, Lunenberg County, 1995/97. Habitat Definition (1) Tusket River Watershed. Very little is known about th
. The Canadian field-naturalist. Natural history. 638 The Canadian Field-Naturalist Vol. 115. Figure 3. Distribution of the Atlantic Whitefish in Nova Scotia. The Tusket, Annis and Petite Riviere water- sheds known to support Atlantic Whitefish are shown as well as four records (•) outside these watersheds where specimens have been captured. 1 = Hall's Harbour, Kings County, 1958; 2 = Sissiboo River mouth, Digby County, 1919; 3 = Yarmouth Harbour, Yarmouth County, 1940; 4 Lehave River mouth, Lunenberg County, 1995/97. Habitat Definition (1) Tusket River Watershed. Very little is known about the habitat requirements of the Atlantic Whitefish in the Tusket River watershed. The Atlantic Whitefish is known to be anadromous in the Tusket River and its tributary, the Annis River. The Tusket River watershed provides an extensive estuarine habitat for the Atlantic Whitefish and the species has been commonly caught in these brackish waters in the past. Atlantic Whitefish are known to venture into full seawater and specimens have been caught off Wedgeport, Yarmouth County, at a salinity of 31 ppt (Scott and Scott 1988). Atlantic Whitefish are not known to enter fresh water much above the influence of tidal waters in the Tusket and Annis rivers. In the past, Atlantic Whitefish have been captured in winter through the ice in Lake Vaughn just above the Tusket River dam (Patrick Patten, personal communication, March 2000). While the spawning and nursery requirements for Atlantic Whitefish are unknown. Smith (1962) indicated the Tusket River provided over 138 000 m^ of spawning areas and over 668 000 m^ of nursery areas for Atlantic Salmon. A potential annual return -J »5 N ^ ( p HEB8 .DAM AND BRIOeEWKTER ^ WATER INTAKE t MINMWEAK LAKE I 4 -FANCrV f fOmCR CONNECTION TO MEDWAY RIVER i . aZ H 1 \J'^ r-y~~^ 0 1 1 . Sbi • 1 1 ] ATLANTIC OCfAN Figure 4. The Petite Riviere watershed, Lunenburg County, Nova Scotia, showing water chemistry sampling sta- tions in 1983-85 (1 - St. Geor
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