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Table 2.

Gill NKA-α1c and CFTR II mRNA levels in anadromous and landlocked Atlantic salmon in freshwater, and NKA-α1c after 4 days (May 19) and 1 month (June 18) in seawater

Gill mRNA levels (relative units)
NKA-α1c
CFTR II
DateAnadromousLandlockedAnadromousLandlocked
February 26 (FW) 1.08±0.06 1.08±0.08 9.92±0.96 10.39±1.13 
April 15 (FW) 1.01±0.09 1.03±0.05 12.44±1.31 9.35±1.04 
May (FW) 1.01±0.11 1.04±0.11 12.74±1.18 13.09±1.69 
June 18 (FW) 1.11±0.08 1.08±0.07 11.14±1.46 9.99±1.69 
May 19 (SW) 1.15±0.11 1.12±0.08 – – 
June 18 (SW) 0.88±0.04 0.97±0.06 – – 
Gill mRNA levels (relative units)
NKA-α1c
CFTR II
DateAnadromousLandlockedAnadromousLandlocked
February 26 (FW) 1.08±0.06 1.08±0.08 9.92±0.96 10.39±1.13 
April 15 (FW) 1.01±0.09 1.03±0.05 12.44±1.31 9.35±1.04 
May (FW) 1.01±0.11 1.04±0.11 12.74±1.18 13.09±1.69 
June 18 (FW) 1.11±0.08 1.08±0.07 11.14±1.46 9.99±1.69 
May 19 (SW) 1.15±0.11 1.12±0.08 – – 
June 18 (SW) 0.88±0.04 0.97±0.06 – – 

FW, freshwater; SW, seawater; NKA-α1c,Na+,K+-ATPase α1c; CFTR II, cystic fibrosis transmembrane conductance regulator II. CFTR II was not measured following seawater transfer

Values are mean ± s.e.m. (N=8–10). No significant differences were observed

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