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Publikováno v:
Canadian Journal of Zoology. 78:974-981
Selective predation by and predation rates of brown bears (Ursus arctos) foraging on spawning sockeye salmon (Oncorhynchus nerka) in a small shallow creek in the Wood River lake system near Bristol Bay, Alaska, were quantified during 1986 and 19901
Publikováno v:
Canadian Journal of Zoology. 76:783-790
Habitat use by juvenile bull trout (Salvelinus confluentus) and cutthroat trout (Oncorhynchus clarki) in Trestle Creek, Idaho, changed seasonally and dielly. Both cutthroat and bull trout selected pools over riffles in both summer and winter. Both sp
Publikováno v:
Canadian Journal of Zoology. 74:851-857
We investigated the cause of the low survival to hatch of embryos of coho salmon (Oncorhynchus kisutch) from the Fairview, Pennsylvania, stock in Lake Erie. In 1988, survival to hatch of this stock was only 42%, whereas another Great Lakes coho salmo
Autor:
Katherine L. Cousins, J.O.T. Jensen
Publikováno v:
Canadian Journal of Zoology. 72:1854-1857
The occurrence of soft-shell disease in salmon hatcheries in British Columbia was investigated. Soft-shell disease occurred most frequently in chinook (Oncorhynchus tshawytscha) and coho (Oncorhynchus kisutch) salmon, and in years of high water tempe
Publikováno v:
Canadian Journal of Zoology. 70:1341-1346
Metabolic rates, hatching success, alevin survival, time to hatch, and growth were measured for steelhead (Oncorhynchus mykiss) and fall chinook salmon (Oncorhynchus tshawytscha) embryos incubated in salinities of 0, 4, 8, and 12 parts per thousand (
Publikováno v:
Canadian Journal of Zoology. 69:733-737
Laboratory experiments were designed as follows in an attempt to evaluate the potential importance of eels in dispersal of Gyrodactylus salaris: exposure of uninfected eels to infected salmon; exposure of infected eels to uninfected salmon; exposure
Autor:
S. C. Johnson, L. J. Albright
Publikováno v:
Canadian Journal of Zoology. 69:1414-1416
Adults, preadults, and chalimus larvae of Lepeophtheirus cuneifer were recovered from rainbow trout, Oncorhynchus mykiss, and Atlantic salmon, Salmo salar, cultured in seawater in the southern Strait of Georgia, British Columbia. This species has not
Autor:
Alex Haro, William H. Krueger
Publikováno v:
Canadian Journal of Zoology. 69:812-814
American eels of
Publikováno v:
Canadian Journal of Zoology. 65:2780-2785
The reproductive success of two stocks of Lake Erie coho salmon (Oncorhynchus kisutch Walbaum) was examined in an attempt to determine if the low embryonic survival of one of the stocks could be related to the epizootic of thyroid hyperplasia exhibit
Autor:
L. R. Russell
Publikováno v:
Canadian Journal of Zoology. 58:1220-1226
Growth and swimming abilities of fingerling and 1.5-year-old rainbow trout infected with the nematode parasite Truttaedacnitis truttae were examined. Control trout and trout infected in the laboratory with 5, 10, 20, 40, or 80 worms exhibited similar