Table 1.
Published relationships between sperm phenotypic traits and swimming speed.
| Taxon | Morphological variable | Correlation with speed | Study |
|---|---|---|---|
| Mammals | Total length | + | [4,8] |
| Red deer (Cervus elaphus hispanicus) | Head length | + | [9] |
| Midpiece length | - | ||
| Flagellum length | 0 | ||
| Total length | 0 | ||
| Zebra finch (Taeniopygia guttata) | Midpiece length | 0 | [43] |
| Flagellum length | 0 | ||
| Tail length | 0 | ||
| Cichlid fish (Telmatochromis vittatus) | Total length | 0 | [45] |
| Atlantic salmon (Salmo salar) | Head length | 0 | [46] |
| Flagellum length | 0 | ||
| Total length | 0 | ||
| Bluegill sunfish (Lepomis macrochirus) | Total length | 0 | [44,66] |
| Flagellum length | 0 | [42] | |
| Guppy (Poecilia reticulata) | Head length | + | [10] |
| Flagellum length | 0 | ||
| Relative flagellum length | 0 | ||
| Grass goby (Zosterisessor ophiocephalus) | Tail length | 0 | [67] |
| Total length | 0 | ||
| Black goby (Gobius niger) | Tail length | 0 | [67] |
| Total length | 0 | ||
| Land snail (Arianta arbustorum) | Total length | 0 | [47] |
Key: +, positive correlation between length and speed; -, negative correlation between length and speed; and 0, correlation analysis performed, but no relationship between length and speed found.