salmon presentation
TRANSCRIPT
Effect of rearing practices on physiological characteristics in Landlocked Atlantic Salmon:
A comparative analysis in condition factor and smolt
index
Sampling sites
• Ed Weed Fish Culture Station (EWFCS)-Grand Isle, VT
• Eisenhower Nation Fish Hatchery (ENFH)-Pittsford, VT
• Huntington River, VT
Experimental Design
• Sites were sampled in 2011 (2009 year class) and 2012 (2010 year class)
• 12 fish were from each site were randomly selected from each sampling date for analysis
Sample Month EWFCS ENFH Huntington
January 11’&12’ 11’&12’
February 11’&12’ 11’&12’
March 11’&12’ 11’&12’
April 12’
May 12’ 11’&12’
Measurement and analysis
• Condition factor (K):(K=(100xweight(g)/ length(mm)^3)
• Smolt Index (Silvering and Fin darkening)Scale: 1 is indicative of Parr
5 is indicative of Smolt
Condition factor: 2009 yc
1 2 3 40.7
0.75
0.8
0.85
0.9
0.95
1
1.05
EWFCS
ENFH
Huntington
Aver
age
Cond
ition
Fac
tor (
K)
Feb Mar Apr May
Values are means ± SE.
Condition Factor: 2010 yc
1 2 3 4 50.75
0.8
0.85
0.9
0.95
1
1.05
1.1
EWFCSENFHHuntington
Aver
age
Cond
ition
Fac
tor (
K)
Jan Feb Mar Apr May
Values are means ± SE.
Values are Means ± SE. B=Ewfcs; R=ENFH; G=Huntington