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Table 1 Biometric and blood parameters

From: Swimming suppresses hepatic vitellogenesis in European female silver eels as shown by expression of the estrogen receptor 1, vitellogenin1 and vitellogenin2 in the liver

a)   start 1.5-mnths rest 1.5-mnths rest and CPE
  BL (cm) 76 ± 2 76 ± 2 76 ± 2
  BW (g) 753 ± 44 716 ± 43 715 ± 45
  K 0.169 ± 0.006 0.161 ± 0.006 0.160 ± 0.006
  EI 15.2 ± 0.5 15.0 ± 0.5 15.4 ± 0.4
  PFLI 5.53 ± 0.17 5.49 ± 0.15 5.45 ± 0.15
  PFWI 2.99 ± 0.10 2.98 ± 0.13 3.06 ± 0.16
  Is 5 5 5
  Ca (mM) 2.45 ± 0.03 2.40 ± 0.07 3.45 ± 0.03
b)   start 1.5-mnths swim 1.5 mnths swim and CPE
  BL (cm) 77 ± 2 77 ± 2 77 ± 2
  BW (g) 770 ± 87 733 ± 76 744 ± 81
  K 0.169 ± 0.005 0.161 ± 0.005 0.163 ± 0.006
  EI 14.1 ± 1.1 14.6 ± 1.5 14.8 ± 1.3
  PFLI 5.41 ± 0.04 5.42 ± 0.09 5.36 ± 0.12
  PFWI 2.82 ± 0.14 2.85 ± 0.08 2.83 ± 0.10
  Is 5 5 5
  Ca (mM) 2.51 ± 0.08 2.36 ± 0.03 2.83 ± 0.20
c)   start 3-mnths rest 3 mnths rest and CPE
  BL (cm) 75 ± 2 75 ± 1 75 ± 2
  BW (g) 678 ± 36 621 ± 16 623 ± 35
  K 0.163 ± 0.008 0.149 ± 0.004 0.149 ± 0.007
  EI 14.7 ± 0.7 13.8 ± 0.3 15.0 ± 0.4
  PFLI 5.32 ± 0.05 5.37 ± 0.02 5.11 ± 0.27
  PFWI 2.85 ± 0.03 2.76 ± 0.02 2.76 ± 0.06
  Is 5 5 5
  Ca (mM) 2.46 ± 0.07 2.42 ± 0.06 2.79 ± 0.20
d)   start 3 mnths swim 3 mnths swim and CPE
  BL (cm) 76 ± 3 76 ± 1 76 ± 3
  BW (g) 849 ± 134 802 ± 60 790 ± 137
  K 0.189 ± 0.010 0.178 ± 0.005 0.175 ± 0.012
  EI 15.5 ± 0.7 14.9 ± 0.3 15.6 ± 0.6
  PFLI 5.54 ± 0.14 5.47 ± 0.06 5.54 ± 0.17
  PFWI 2.75 ± 0.13 2.71 ± 0.06 2.81 ± 0.09
  Is 4.60 ± 0.24 4.60 ± 0.11 4.60 ± 0.24
  Ca (mM) 2.56 ± 0.11 2.35 ± 0.06 2.80 ± 0.25
  1. a) at the start, after 1.5 months resting and after 3 subsequent CPE injections in the same eels, b) at the start, after 1.5 months swimming and after 3 subsequent CPE injections in the same eels, c) at the start, after 3 months resting and after 3 subsequent CPE injections in the same eels and d) at the start, after 3 months swimming and after 3 subsequent CPE injections in the same eels. Comparisons were made in subsequent order; rest vs. start and rest + CPE vs. rest, as paired data. Statistical significant differences at P ≤ 0.05 are given in bold.
  2. (BL = body-length, BW = body-weight, K = condition factor, EI = eye index, PFLI = pectoral fin length index, PFWI = pectoral fin width index, Is = silver index, Ca = calcium).