Igarapé

An igarapé is an Amazon watercourse of first or third order, constituted by a long arm of river or channel. It exists in a small number in the Amazon basin, characterized by little depth and running almost inside the forest.

Most igarapés have dark waters similar to the Negro River (Rio Negro), which is one of the main tributaries of the Amazon River, carrying few sediments. They are navigable by small vessels and canoes and play an essential role as transport and communication routes.

Veja também

Diffusion in the oceans

The process through which the atmosphere and water continuously exchange molecules of carbon dioxide. The diffusion of carbon dioxide into the oceans accounts for almost half of the carbon extracted from the atmosphere. The colder oceans absorb more CO2 than warmer...

Forest conversion

Change to the forest environment to establish another land use, such as pasture and agriculture; deforestation.

Biome

The word ‘biome’ – ‘bios’ (from Ancient Greek βίο, meaning ‘life’) and ‘ome’ (a variation of ōma, from Ancient Greek ωμα, meaning ‘mass’ or ‘group’) – was first used in 1943 by the American botanist Frederic Edward Clements, to define a biological unit or...