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| rudds (Scardinius) | |||
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| red-eye (Scardinius erythrophthalmus); rudd (Scardinius erythrophthalmus) | |||
| redeye (Scardinius erythrophthalmus); rudd (Scardinius erythrophthalmus) | |||
| rudd (Rutilus erythrophthalmus) | |||
| rotengles: 3 phrases in 2 subjects |
| Fish farming pisciculture | 1 |
| Ichthyology | 2 |