Testing plant materials for detection of oxygen-deficient water in ponds.
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| Format: | Texto biblioteca |
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1966
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| Subjects: | FISH PONDS, WATER, OXYGEN, PLANTS, TESTING, FISHERY MANAGEMENT, ETANG DE PISCICULTURE, EAU, OXYGENE, PLANTE, TESTAGE, ESTANQUES PISCICOLAS, AGUA, OXIGENO, PLANTAS, ENSAYO, GESTION DES PECHES, ADMINISTRACION PESQUERA, |
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