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| perch (Perca flavescens, Perca fluviatilis, Plectroplites ambiguus); European perch (Perca fluviatilis); perch (Perca fluviatilis) | |||
| darter (Perca fluviatilis); perch (Perca fluviatilis) | |||
| Dutch thesaurus | |||
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| grgec (Perca flavescens, Perca fluviatilis, Plectroplites ambiguus) | |||
| baars: 8 phrases in 4 subjects |
| Fish farming pisciculture | 1 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 3 |