 |
|
eau douce : 133 phrases in 18 subjects |
| Agriculture | 13 |
| Amphibians and reptiles | 4 |
| Economics | 2 |
| Environment | 38 |
| Fish farming pisciculture | 17 |
| General | 11 |
| Geology | 3 |
| Hobbies and pastimes | 1 |
| Ichthyology | 7 |
| Life sciences | 4 |
| Mammals | 3 |
| Medical | 1 |
| Mineral products | 1 |
| Natural resourses and wildlife conservation | 15 |
| Natural sciences | 6 |
| Nuclear physics | 1 |
| Transport | 3 |
| Zoology | 3 |