Effect of Ichthyophonus on blood plasma chemistry of spawning Chinook salmon and their resulting offspring in a Yukon River tributary

2017 ◽  
Vol 122 (3) ◽  
pp. 223-236 ◽  
Author(s):  
TP Floyd-Rump ◽  
LA Horstmann-Dehn ◽  
S Atkinson ◽  
C Skaugstad
Keyword(s):  
Blood Plasma ◽  
Chinook Salmon ◽  
Plasma Chemistry ◽  
Yukon River

Using thalweg profiling to assess and monitor juvenile salmon (Oncorhynchus spp.) habitat in small streams

2006 ◽  
Vol 63 (7) ◽  
pp. 1515-1525 ◽  
Author(s):  
Brent Mossop ◽  
Michael J Bradford
Keyword(s):  
Chinook Salmon ◽  
Stream Flow ◽  
Gold Mining ◽  
Oncorhynchus Tshawytscha ◽  
Fish Habitat ◽  
Juvenile Chinook Salmon ◽  
Yukon River ◽  
Small Streams ◽  
Longitudinal Profiles ◽  
Small Tributary

Thalweg profiles are longitudinal profiles of the streambed elevation measured along the deepest portion of the stream. This technique has recently been advocated as a tool to assess and monitor fish habitat in streams because metrics calculated from thalweg profiles can provide useful information on habitat quality, and measurements are both repeatable and independent of stream flow. Relations between thalweg metrics and land use have also been documented. However, a relation between fish abundance and thalweg metrics has not been established. To develop this relation, we surveyed thalweg profiles and sampled juvenile Chinook salmon (Oncorhynchus tshawytscha) density in 14 reaches of small tributary streams of the upper Yukon River. Chinook salmon density was correlated with three thalweg metrics. Two of these metrics — length in residual pool and mean maximum residual pool depth — provided useful measures of pool extent and quality and useful information on Chinook salmon habitat. Thalweg metrics differed between these undisturbed streams and reaches in streams affected by placer gold mining. These results suggest that thalweg profiling provides a useful tool to assess and monitor fish habitat in small streams.

scholarly journals Performance, egg quality, and blood plasma chemistry of laying hens fed hempseed and hempseed oil

2014 ◽  
Vol 93 (11) ◽  
pp. 2827-2840 ◽  
Author(s):  
M. Neijat ◽  
N. Gakhar ◽  
J. Neufeld ◽  
J.D. House
Keyword(s):  
Blood Plasma ◽  
Laying Hens ◽  
Egg Quality ◽  
Plasma Chemistry
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