Table 4.
Biometrics of the chub (Leuciscus cephalus) and carp (Cyprinus carpio) used for the swimming experiments in Italy, the UK and The Netherlands. (Values are means±s.d. Condition factor is calculated as (mass length−3)×100. I, Italy; NL, The Netherlands. In Italy, ‘Laboratory’ refers to the La Casella Fluvial Hydrobiology Station; in UK, ‘Laboratory’ refers to the School of Biosciences, University of Birmingham, Birmingham.)
| species | country, river, site | month (temp, °C) | n | mass (g) | fork length (cm) | condition factor |
|---|---|---|---|---|---|---|
| L. cephalus | I, Lambro, Merone | May | 6 | 183±53 | 23.7±3.1 | 1.38±0.33 |
| September | 6 | 196±52 | 24.1±2.0 | 1.38±0.15 | ||
| February | 6 | 178±58 | 23.8±2.3 | 1.30±0.14 | ||
| I, Lambro, Brugherio | May | 6 | 194±48 | 24.3±4.7 | 1.36±0.41 | |
| September | 6 | 209±44 | 25.1±1.8 | 1.31±0.05 | ||
| February | 6 | 211±77 | 25.0±3.2 | 1.31±0.12 | ||
| I, Laboratory | May | 7 | 200±69 | 24.3±2.9 | 1.36±0.20 | |
| September | 7 | 198±61 | 23.7±4.2 | 1.35±0.19 | ||
| February | 7 | 188±58 | 24.1±2.2 | 1.30±0.22 | ||
| L. cephalus | UK, Blythe | June/July | 5 | 57±6 | 17.9±0.3 | 1.19±0.10 |
| February | 6 | 108±12 | 20.3±0.7 | 1.28±0.87 | ||
| UK, Cole | June/July | 6 | 62±7 | 17.7±0.9 | 1.11±0.03 | |
| February | 6 | 112±24 | 20.0±0.9 | 1.38±0.18 | ||
| UK, Tame | June/July | 5 | 69±7 | 16.9±0.6 | 1.20±0.11 | |
| February | 6 | 112±13 | 20.9±0.7 | 1.22±0.57 | ||
| UK, Laboratory | June/July | 6 | 67±15 | 17.7±1.1 | 1.21±0.10 | |
| February | 6 | 115±24 | 19.9±1.0 | 1.44±0.12 | ||
| Cyprinus carpio | NL, Amstel, Vrouwenakker | September | 6 | 178±37 | 19.3±2.3 | 2.55±0.79 |
| NL, Amstel, Amsterdam | September | 6 | 169±24 | 19.5±0.5 | 2.28±0.19 | |
| NL, Volgermeerpolder | September | 6 | 196±40 | 20.2±1.7 | 2.36±0.30 |