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North American freshwater catfishes (Ictaluridae); channel cats (Ictaluridae) | |||
catfishes (Ictaluridae) | |||
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brown bullhead (Ameiurus nebulosus, Ictalurus nebulosus) | |||
black bullhead (lctalurus melas); black catfish (lctalurus melas); yellow-bellied bullhead (lctalurus melas); brown bullhead (Ictalurus nebulosus); common bullhead (Ictalurus nebulosus); northern brown bullhead (Ictalurus nebulosus); common catfish | |||
black bullhead (Ictalurus melas, Ameiurus melas); brown bullhead (Ictalurus nebulosus, Ameiurus nebulosus) |
Zwergwelse : 16 phrases in 4 subjects |
Fish farming pisciculture | 2 |
Food industry | 10 |
Ichthyology | 3 |
Natural resourses and wildlife conservation | 1 |