 |
| |||
| American crayfishes | |||
| Orconectes: 11 phrases in 4 subjects |
| Fish farming pisciculture | 1 |
| Food industry | 4 |
| Ichthyology | 5 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| American crayfishes | |||
| Orconectes: 11 phrases in 4 subjects |
| Fish farming pisciculture | 1 |
| Food industry | 4 |
| Ichthyology | 5 |
| Natural resourses and wildlife conservation | 1 |