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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).