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Journal Article

Morphological characteristics of an Amazon floodplain lake (Lake Batata, Pará State, Brazil)

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Panosso, R. d. F., Muehe, D., & Esteves, F. d. A. (1995). Morphological characteristics of an Amazon floodplain lake (Lake Batata, Pará State, Brazil). Amazoniana: Limnologia et Oecologia Regionalis Systematis Fluminis Amazonas, 13(3/4), 245-258.

Cite as: http://hdl.handle.net/21.11116/0000-0004-8C33-5
A bathymetric survey of an Amazon floodplain lake adjacent to the Trombetas River, the Lake Batata (Pará State, Brazil), was done in order to characterize the lake morphology. This study serve as a tool for limnological interpretation data and in environmental impact assessment due to the disposal of tailings from bauxite processing. Lake area, volume, shoreline lenght, maximum effective length and width, shoreline development, maximum, relative and mean depth, volume development and a hypsographic curve were calculated. Lake Batata is shallow (mean depth 2.19 m) and its area is approximately 18 km² at low water level. Based on the configuration of the shoreline, the lake can be divided into differents compartments: the main body, the bay, the channel and the outlet. The basin of the lake is slightly convex with a typical U-shaped configuration. The lake is submitted to a significant seasonal variation of its surface area and shoreline lenght. The distribution of maximum effective fetch, at the main body, is coincident with the maximum turbidity values, evidencing the wind effect over the lake.