TA . | Ldh-B phenotype . | Mean growth rate (mm day—1) . | Mean growth rate (g day—1) . | k-factor . | HI . | GI . | ṀO2 (μmol min—1 g—1) . | N . |
---|---|---|---|---|---|---|---|---|
4°C | a/a | 0.44±0.03 | 2.02±0.21 | 1.15±0.03 | 9.41±0.58 | 3.10±0.83 | 7 | |
a/b | 0.39±0.02 | 1.78±0.15 | 1.19±0.02 | 8.10±0.43 | 5.30±0.44 | 36 | ||
b/b | 0.42±0.01 | 1.97±0.14 | 1.19±0.02 | 8.09±0.36 | 3.25±0.44 | 29 | ||
Pooled | 0.41±0.01 | 1.88±0.09 | 1.19±0.01 | 8.22±0.27 | 4.25±0.32 | 0.042±0.01 | 72 | |
12°C | a/a | 0.73±0.06 | 4.26±0.72 | 1.18±0.03 | 9.13±1.04 | 2.45±0.43 | 3 | |
a/b | 0.65±0.04 | 3.59±0.45 | 1.10±0.04 | 6.77±0.84 | 2.54±0.38 | 11 | ||
b/b | 0.63±0.05 | 4.29±0.48 | 1.31±0.04 | 7.83±0.72 | 2.90±0.29 | 11 | ||
Pooled | 0.65±0.03 | 3.98±0.30 | 1.20±0.03 | 7.52±0.51 | 2.68±0.21 | 0.038±0.01 | 25 |
TA . | Ldh-B phenotype . | Mean growth rate (mm day—1) . | Mean growth rate (g day—1) . | k-factor . | HI . | GI . | ṀO2 (μmol min—1 g—1) . | N . |
---|---|---|---|---|---|---|---|---|
4°C | a/a | 0.44±0.03 | 2.02±0.21 | 1.15±0.03 | 9.41±0.58 | 3.10±0.83 | 7 | |
a/b | 0.39±0.02 | 1.78±0.15 | 1.19±0.02 | 8.10±0.43 | 5.30±0.44 | 36 | ||
b/b | 0.42±0.01 | 1.97±0.14 | 1.19±0.02 | 8.09±0.36 | 3.25±0.44 | 29 | ||
Pooled | 0.41±0.01 | 1.88±0.09 | 1.19±0.01 | 8.22±0.27 | 4.25±0.32 | 0.042±0.01 | 72 | |
12°C | a/a | 0.73±0.06 | 4.26±0.72 | 1.18±0.03 | 9.13±1.04 | 2.45±0.43 | 3 | |
a/b | 0.65±0.04 | 3.59±0.45 | 1.10±0.04 | 6.77±0.84 | 2.54±0.38 | 11 | ||
b/b | 0.63±0.05 | 4.29±0.48 | 1.31±0.04 | 7.83±0.72 | 2.90±0.29 | 11 | ||
Pooled | 0.65±0.03 | 3.98±0.30 | 1.20±0.03 | 7.52±0.51 | 2.68±0.21 | 0.038±0.01 | 25 |
Values are means ± s.e.m.
M is fresh mass of fish (g); l is length of fish (mm); Mliver is fresh mass of liver (g); Mgonad is fresh mass of gonads (g); t is time(days).
Growth rate was calculated asν L=Δl/Δt (mm day—1) andν M=ΔM/Δt (g day—1); HI, hepatosomatic index[HI=(100×Mliver)/M]; GI, gonadosomatic index [GI=(100×Mgonad)/M]; k-factor, condition factor[k=(100×M)/l3]; ṀO2, rate of oxygen consumption for North Sea cod (measured for n=8, unpublished data by T. Fischer, AWI, Germany); N, number of fishes that survived.