| Subject | English | Portuguese |
| nat.sc. | african marsh harrier | tartaranhão-africano (circus ranivorus) |
| nat.sc. | african marsh harrier | águia-sapeira (circus ranivorus) |
| nat.sc. | african marsh harrier | circus ranivorus |
| environ. | Atlantic salt marshes and salt meadows | sapais e prados salgados atlânticos |
| earth.sc. | coastal marsh | pântano costeiro |
| life.sc., agric. | diked marsh | pólder |
| environ. | draining of marshes | drenagem de pântanos |
| nat.sc., agric. | early marsh orchid | satirão-bastardo (Dactylorhiza incarnata (L.)Soo) |
| nat.res. | Eurasian marsh-harrier | águia-sapeira (Circus aeruginosus) |
| nat.res. | Eurasian marsh-harrier | tartaranhão-ruivo-dos-pauis (Circus aeruginosus) |
| nat.res. | European marsh harrier | tartaranhão-ruivo-dos-pauis (Circus aeruginosus) |
| nat.res. | European marsh harrier | águia-sapeira (Circus aeruginosus) |
| nat.sc., agric. | marsh buckbean | trevo-de-água (Menyanthes trifoliata) |
| environ., nat.res. | marsh crocodile | crocodilo dos pântanos (močvirski krokodil) |
| environ., nat.res. | marsh deer | cervo-do-pantanal (Blastocerus dichotomus) |
| environ., nat.res. | marsh deer | cervo dos pantânos (Blastocerus dichotomus) |
| environ., nat.res. | marsh deer | cervo (Blastocerus dichotomus) |
| environ., nat.res. | marsh deer | veado-galheiro (Blastocerus dichotomus) |
| nat.sc., nat.res., agric. | marsh deer | cervo-dos-pântanos (Blastocerus dichotomus, Odocoileus (Blastocerus) dichotomus, Odocoileus (Odocoileus) dichotomus) |
| agric., construct. | marsh drainage | drenagem de terrenos húmidos |
| agric. | marsh earth | terra de pântano |
| environ., nat.res. | marsh harrier | tartaranhão-ruivo-dos-pauis (Circus aeruginosus) |
| nat.res. | marsh harrier | águia-sapeira (Circus aeruginosus) |
| nat.res. | marsh hawk | tartaranhão-azulado (Circus cyaneus) |
| life.sc. | marsh land | terreno pantanoso |
| nat.res., food.ind. | marsh-mallow | malvaísco (Althaea officinalis) |
| nat.res., food.ind. | marsh-mallow | alteia (Althaea officinalis) |
| nat.res. | marsh owl | coruja-moura (Asio capensis) |
| nat.res. | marsh pepper smartweed | pimenta-d'água (Polygonum hydropiper) |
| environ. | marsh plant | helófita |
| environ. | marsh plant | planta dos pântanos |
| environ. | marsh plant | planta palustre |
| nat.sc., agric. | marsh plant | helófito (helphyti) |
| nat.sc., agric. | marsh rose | rosa-dos-pauis (Orothamnus zeyheri) |
| chem. | Marsh's test | reação de Marsh |
| nat.sc. | marsh sandpiper | perna-verde-fino (Tringa stagnatilis) |
| nat.res. | marsh tit | chapim-palustre (Parus palustris, Poecile palustris) |
| nat.sc., agric. | marsh trefoil | trevo-de-água (Menyanthes trifoliata) |
| nat.res. | marsh warbler | felosa-palustre (Acrocephalus palustris) |
| life.sc., agric. | new marsh | pólder |
| environ. | Pannonic salt marsh | prado salgado panónico |
| life.sc., agric. | reclaimed marsh soil | terreno baixo |
| earth.sc. | salt marsh | sapal |
| environ. | salt marsh Areas of brackish, shallow water usually found in coastal areas and in deltas. There are also inland marshes in arid areas where the water has a high salt level because of evaporation. They are environmentally delicate areas, extremely vulnerable to pollution by industrial or agricultural chemicals, or to thermal pollution, which often results when river water has been used as the coolant in power stations and industrial plants | pântanos de água salgada |
| environ. | salt marsh | pântanos de água salgada |
| environ. | salt marsh | pântano salino |
| earth.sc. | salt marsh | pântano de água salgada |
| agric. | tidal marsh | terras banhadas pela maré |
| nat.res. | Western marsh-harrier | tartaranhão-ruivo-dos-pauis (Circus aeruginosus) |
| nat.res. | Western marsh-harrier | águia-sapeira (Circus aeruginosus) |