Kootenay Lake

1978 ◽  
Author(s):  
Keyword(s):  
Kootenay Lake

River-Induced Transport in Kootenay Lake

1995 ◽  
Vol 121 (11) ◽  
pp. 830-837 ◽  
Author(s):  
Craig L. Stevens ◽  
Paul F. Hamblin ◽  
Gregory A. Lawrence ◽  
Farrell M. Boyce
Keyword(s):  
Kootenay Lake

A Comparison of the Growth of Vertically-Migrating and Nonmigrating Kokanee (Oncorhynchus nerka) Fry

1990 ◽  
Vol 47 (3) ◽  
pp. 486-491 ◽  
Author(s):  
N. T. Johnston
Keyword(s):  
British Columbia ◽  
Vertical Migration ◽  
Growth Rates ◽  
Oncorhynchus Nerka ◽  
Geometric Mean ◽  
Adaptive Significance ◽  
Behavioural Thermoregulation ◽  
Kootenay Lake ◽  
Efficiency Hypothesis

A comparison of the growth of vertically-migrating kokanee (Oncorhynchus nerka) fry and nonmigrating fry confined to the epilimnion in thermally-stratified Kootenay Lake, British Columbia rejected the bioenergetic efficiency hypothesis for the adaptive significance of vertical migration. Growth rates were higher for nonmigrating fry than for vertically-migrating fry. Geometric mean wet weights in early October were 2.88 g for non-migrating fry and 1.40 g for vertically-migrating fry of the same stock. The geometric mean weight of fry of a second stock rearing in the isothermal West Arm, in which behavioural thermoregulation by vertical migration was not possible, was 8.54 g in early October.

Additional Observations Concerning Residual Sockeye and Kokanee (Oncorhynchus nerka)

1959 ◽  
Vol 16 (6) ◽  
pp. 897-902 ◽  
Author(s):  
W. E. Ricker
Keyword(s):  
Oncorhynchus Nerka ◽  
Large Excess ◽  
Parent Stock ◽  
Kootenay Lake ◽  
One Year

1. During the 1920's, plantings of anadromous sockeye fry in small barren lakes tributary to Stuart Lake produced (in addition to smolts) lake-maturing "residual" sockeye dull in colour at maturity. The samples taken contained a large excess of females. 2. The kokanee of Cultus Lake, caught in 1934–36, were all of one year-class and are now believed to have been progeny of Kootenay Lake (West End) kokanee eggs hatched and reared at Cultus Lake, though not intentionally planted there. These kokanee were of a bright colour at maturity, like their parent stock, and matured mostly at age 2+.

scholarly journals Tectonic assemblage map, Kootenay Lake, British Columbia-Alberta-U.S.A.

2000 ◽  
Author(s):  
J M Journeay ◽  
S P Williams ◽  
J O Wheeler
Keyword(s):  
British Columbia ◽  
Kootenay Lake

Sediment Records of Man’s Activities in the Kootenay Lake Drainage Basin

1994 ◽  
Vol 29 (1) ◽  
pp. 103-116
Author(s):  
R.W. Macdonald ◽  
E.C. Carmack ◽  
C.H. Pharo
Keyword(s):  
Sedimentation Rate ◽  
Drainage Basin ◽  
Road Construction ◽  
The North ◽  
Mining History ◽  
Boom And Bust ◽  
History Of ◽  
Lead Zinc ◽  
Lake Drainage ◽  
Kootenay Lake

Abstract Four cores from Kootenay Lake have been dated using 2l0Pb. These cores have also been analyzed for total Pb concentration specifically to compare the sediment record with the known history of lead-zinc mining around the lake. Two sorts of impact on the lake are recorded in the sediments. First, there is obvious contamination by Pb in which concentrations within cores parallel the regional “boom-and-bust” mining history. Second, the sedimentation rate appears to have been affected by damming of the inflowing rivers and probably also by logging and the associated road construction in the watersheds. Spatial variability within the lake sediments is evident: sedimentation rate is highest towards the north and south ends of the lake where river inflow is greatest; contamination by Pb is highest in the middle of the lake close to the major mining activities.

Relationship Between Body-Lead Concentration of Mysis relicta and Sediment-Lead Concentration in Kootenay Lake, B.C.

1983 ◽  
Vol 40 (1) ◽  
pp. 78-81 ◽  
Author(s):  
R. D. Evans ◽  
D. C. Lasenby
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Strong Correlation ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Lead Concentration ◽  
Atomic Absorption Spectrophotometry ◽  
Mysis Relicta ◽  
Absorption Spectrophotometry ◽  
Kootenay Lake

The potentially important mechanism of biological mobilization of lead from lake sediments was investigated. Lead concentrations of the crustacean Mysis relicta from Kootenay Lake, determined using atomic absorption spectrophotometry, were compared to published lead sediment concentrations from the same sites. There is a strong correlation between sediment-lead concentration and Mysis-lead concentration. This correlation may indicate that Mysis can accumulate lead from the sediment and return it to the open water.Key words: Mysis relicta, lead, heavy metal contamination, contaminated sediments.

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