Pinder, A.C., 2001. Keys to larval and juvenile stages of coarse fishes from fresh waters in the British Isles. Freshwater Biological Association. The Ferry House, Far Sawrey, Ambleside, Cumbria, UK. Scientific Publication No. 60. 136 p.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Leuciscus idus | Larvae | Initial larval size | 5 | 5.0 mm |