. The Canadian field-naturalist. ^~^~'\jX_ ^ 'â 'I --~-.^ I'^s c^-' i^' ^-. ⢠J,'c; -C "'-fOi^. â¢fv -4G ;:rv. Figure 2. North American distribution of the Fourhorn Sculpin, Myoxocephalus quadricornis (from sources quoted in the text). O Alaska; ⢠Pre 1960 collection records; A 1970's records; â Post 1970 records. All in all, Fourhorn Sculpin are common in the Beaufort Sea (Ratynski 1983). Larvae and fish of all ages have been reported along the coasts of Alaska (Craig and McCart 1976; Craig etal. 1985), the Yukon coast (Kendel et al. 1975; Griffiths et al. 1975), and along the Tuktoyak
. The Canadian field-naturalist. ^~^~'\jX_ ^ 'â 'I --~-.^ I'^s c^-' i^' ^-. ⢠J,'c; -C "'-fOi^. â¢fv -4G ;:rv. Figure 2. North American distribution of the Fourhorn Sculpin, Myoxocephalus quadricornis (from sources quoted in the text). O Alaska; ⢠Pre 1960 collection records; A 1970's records; â Post 1970 records. All in all, Fourhorn Sculpin are common in the Beaufort Sea (Ratynski 1983). Larvae and fish of all ages have been reported along the coasts of Alaska (Craig and McCart 1976; Craig etal. 1985), the Yukon coast (Kendel et al. 1975; Griffiths et al. 1975), and along the Tuktoyaktuk Peninsula (Jones and Den Beste 1977; Ratynski 1983; Lawrence et al. 1984). Fourhorn Sculpin are known to overwinter in bays and inlets along the coast (Lawrence et al. 1984). Unfortunately, such detailed data are not available for the remainder of the Canadian Arctic coast, the eastern Arctic or the Arctic Archipelago. The Beaufort Sea has received considerable attention due to the Environmental Impact Assessment required by law in relation to hydrocarbon exploration and development in the area. The pace of activity has not been as great in the remainder of the Arctic and where sampling has been conducted, in Lancaster Sound and the Wellington Channel, the waters are deeper and the species not as Ukely to be found. Perhaps future activity in other areas of the Arctic will show the species to be as abundant there as in the west. Limited observations on or about Victoria, Cornwallis, Little Cornwallis and Ellesmere islands have indicated the presence of the species in these areas (McAlhster 1961). Welch (1985) observed that Fourhorn Sculpins were not taken in freshwater and were not known from the Saqvaqjvac area of Northern Hudson Bay, but were common in the high Arctic in lakes that contain anadromous Arctic Char {Salvelinus alpinis). Lake populations in the Arctic appear to be resident and to have been separated from their marine progenitors for several thousand ye
Size: 2096px × 1192px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
