Table 1. Average prosome lengths (±SD) of all analyzed copepod species at all sites, the results of statistical comparisons and a summary of the samples taken.
| Site | Species | Method | Sampling | Date | Depth | n | Mean PL (± SD) (mm) | Statistical test | |||
| Red Sea | C. vanus | SCUBA | 1 | 20.5.09 | 5 m | 30 | 1.18 (±0.057) | Kruskal-Wallis, χ2 = 9.122, df = 1, p = 0.003 | |||
| C. vanus | SCUBA | 1 | 20.5.09 | 20 m | 30 | 1.15 (±0.084) | |||||
| C. vanus | SCUBA | 2 | 25.7.09 | 5 m | 8 | 0.83 (±0.046) | |||||
| C. vanus | SCUBA | 2 | 25.7.09 | 20 m | 9 | 1.02 (±0.123) | |||||
| C. vanus | SCUBA | 3 | 1.9.09 | 5 m | 30 | 0.81 (±0.035) | |||||
| C. vanus | SCUBA | 3 | 1.9.09 | 20 m | 17 | 1 (±0.058) | |||||
| Red Sea | M. clausi | SCUBA | 1 | 25.6.09 | 5 m | 50 | 1.112 (±0.066) | Kruskal-Wallis, χ2 = 2.878, df = 1, p = 0.09 | |||
| M. clausi | SCUBA | 1 | 25.6.09 | 20 m | 48 | 1.113 (±0.036) | |||||
| M. clausi | SCUBA | 2 | 1.7.09 | 5 m | 25 | 1.372 (±0.023) | Kruskal-Wallis, χ2 = 2.407, df = 1, p = 0.121 | ||||
| M. clausi | SCUBA | 2 | 1.7.09 | 20 m | 17 | 1.365 (±0.023) | |||||
| M. clausi | SCUBA | 3 | 1.9.09 | 5 m | 6 | 1.118 (±0.01) | Kruskal-Wallis, χ2 = 0.642, df = 1, p = 0.423 | ||||
| M. clausi | SCUBA | 3 | 1.9.09 | 20 m | 76 | 1.11 (±0.024) | |||||
| M. clausi | MOCNESS | 4 | 4.8.10 | 20–30 m | 64 | 0.735 (±0.016) | Kruskal-Wallis, χ2 = 13.357, df = 1, p<0.001 | ||||
| M. clausi | MOCNESS | 4 | 4.8.10 | 60–70 m | 74 | 0.724 (±0.02) | |||||
| Med. Sea | C. furcatus male | SCUBA | 1 | 26.9.11 | 7 m | 60 | 0.621 (± 0.015) | Kruskal-Wallis, χ2 = 12.716, df = 1, p<0.001 | |||
| C. furcatus male | SCUBA | 2 | 27.9.11 | 6 m | 31 | 0.634 (±0.016) | |||||
| C. furcatus male | SCUBA | 1 | 26.9.11 | 20 m | 42 | 0.619 (±0.014) | |||||
| C. furcatus male | SCUBA | 2 | 27.9.11 | 20 m | 17 | 0.617 (±0.024) | |||||
| Med. Sea | C5 right | SCUBA | 1 | 26.9.11 | 7 m | 48 | 0.614 (±0.02) | Kruskal-Wallis, χ2 = 7.123, df = 1, p = 0.008 | |||
| C5 right | SCUBA | 2 | 27.9.11 | 6 m | 21 | 0.613 (±0.023) | |||||
| C5 right | SCUBA | 1 | 26.9.11 | 20 m | 42 | 0.606 (±0.018) | |||||
| C5 right | SCUBA | 2 | 27.9.11 | 20 m | 15 | 0.598 (±0.022) | |||||
| Med. Sea | C5 left | SCUBA | 1 | 26.9.11 | 7 m | 58 | 0.612 (±0.022) | Kruskal-Wallis, χ2 = 13.344, df = 1, p<0.001 | |||
| C5 left | SCUBA | 2 | 27.9.11 | 6 m | 33 | 0.618 (±0.02) | |||||
| C5 left | SCUBA | 1 | 26.9.11 | 20 m | 59 | 0.607 (±0.016) | |||||
| C5 left | SCUBA | 2 | 27.9.11 | 20 m | 21 | 0.602 (±0.01) | |||||
| Arctic | C. glacialis C5 | Multinet | 18.7.11, day | 8 m | 33 | 3.18 (±0.185) | 2-way ANOVA: | ||||
| C. glacialis C5 | Multinet | 19.7.11, night | 6 m | 23 | 3.35 (±0.156) | effect of depth: F = 0.000, df = 1, p = 0.988 | |||||
| C. glacialis C5 | Multinet | 18.7.11, day | 20 m | 29 | 3.22 (±0.167) | effect of stage: F = 749.8, df = 1, p<0.001 | |||||
| C. glacialis C5 | Multinet | 19.7.11, night | 15 m | 28 | 3.35 (±0.168) | ||||||
| C. glacialis C4 | Multinet | 19.7.11, night | 6 m | 20 | 2.48 (±0.109) | ||||||
| C. glacialis C4 | Multinet | 19.7.11, night | 15 m | 27 | 2.45 (±0.111) | ||||||
Abbreviations: PL – prosome length, SD – standard deviation, Med. Sea – Mediterranean Sea, "C5 right" and "C5 left" are codenames for two clausocalanid copepodites that refer to the position of the longer ramus of the fifth swimming leg.