General characteristics of Atlantic cod subjected to two different feeding regimes for 16 weeks at ambient seawater temperatures(1-8.8°C)
| . | Feeding regime . | . | |
|---|---|---|---|
| . | Starved . | Fed . | |
| Initial mass (g) | 1429±442 | 1185±352 | |
| Initial length (cm) | 54.4±5.6 | 52.1±6.1 | |
| (Initial mass × fork length-3)×100 | 0.86±0.1 | 0.80±0.1 | |
| Final mass (g) | 928±302 | 1200±384 | |
| Final length (cm) | 54.9±5.8 | 52.5±6.2 | |
| Final CF | 0.54±0.1 | 0.81±0.1 | |
| Growth rate (mass% day-1) over 16 weeks | -0.35±0.1 | 0.07±0.05 | |
| Hepatosomatic index | 1.1±0.4 | 3.9±2.0 | |
| Gonadosomatic index | 0.7±0.4 | 1.0±0.7 | |
| Hematocrit (%) | 29.8±7.8 | 32.7±6.4 | |
| Gill arch mass (g) | 29.4±9.0 | 29.7±9.4 | |
| Heart mass (g) | 1.9±0.5 | 2.1±0.8 | |
| Ratio male/female | 5/9 | 7/12 | |
| . | Feeding regime . | . | |
|---|---|---|---|
| . | Starved . | Fed . | |
| Initial mass (g) | 1429±442 | 1185±352 | |
| Initial length (cm) | 54.4±5.6 | 52.1±6.1 | |
| (Initial mass × fork length-3)×100 | 0.86±0.1 | 0.80±0.1 | |
| Final mass (g) | 928±302 | 1200±384 | |
| Final length (cm) | 54.9±5.8 | 52.5±6.2 | |
| Final CF | 0.54±0.1 | 0.81±0.1 | |
| Growth rate (mass% day-1) over 16 weeks | -0.35±0.1 | 0.07±0.05 | |
| Hepatosomatic index | 1.1±0.4 | 3.9±2.0 | |
| Gonadosomatic index | 0.7±0.4 | 1.0±0.7 | |
| Hematocrit (%) | 29.8±7.8 | 32.7±6.4 | |
| Gill arch mass (g) | 29.4±9.0 | 29.7±9.4 | |
| Heart mass (g) | 1.9±0.5 | 2.1±0.8 | |
| Ratio male/female | 5/9 | 7/12 | |
Values are means ± S.D.; N=19 for the fed group and 14 for the starved group.