Results 1 to 10 of about 973,391 (296)

Flood pulse effects on multispecies fishery yields in the Lower Amazon. [PDF]

open access: yesR Soc Open Sci, 2015
Seasonally fluctuating water levels, known as ‘flood pulses’, control the productivity of large river fisheries, but the extent and mechanisms through which flood pulses affect fishery yields are poorly understood. To quantify and better understand flood pulse effects on fishery yields, this study applied regression techniques to a ...
Castello L, Isaac VJ, Thapa R.
europepmc   +5 more sources

Conhecimento ecológico local dos pescadores sobre a alimentação dos peixes no rio Tapajós, Pará, Brasil

open access: yesConfins
Local Ecological Knowledge (LEK) constitutes an important source of information for understanding fishery resource dynamics, water seasonality, and the sustainable development of fishing practices, as well as for contributing to management actions in the
Josele Trindade da Silva   +2 more
doaj   +1 more source

Epistylid ciliates as epibionts on calanoid copepods in an Amazonian floodplain lake (Batata Lake) [PDF]

open access: yesActa Limnologica Brasiliensia
Aim The main objective was to investigate changes in the prevalence and infestation intensity of the epibiotic relationship (ciliates/calanoids) in relation to the impact of bauxite tailings (natural and impacted areas) during two distinct periods of the
Wésley Altino Flores   +4 more
doaj   +1 more source

Hydrologic cycle influence on desmid abundance in a shallow floodplain lagoon in the Brazilian semiarid region [PDF]

open access: yesActa Limnologica Brasiliensia
Aim Knowledge of hydrological characteristics is essential for understanding ecological processes in floodplains, which can support sustainable management.
Maria Aparecida dos Santos   +3 more
doaj   +1 more source

Composição florística e estrutura da comunidade vegetal em diferentes fitofisionomias do Pantanal de Poconé, Mato Grosso

open access: yesRodriguésia
Esta pesquisa teve como objetivo analisar a composição e estrutura de comunidade vegetal de quatro fitofisionomias no Pantanal de Poconé, estado de Mato Grosso, partindo do pressuposto de que cada grupo de amostras constitui um tipo de comunidade e ...
Rodrigo Ferreira de Morais   +3 more
doaj   +1 more source

Flood pulse influence and anthropic impact on the chemical composition and energy content of Oryza glumaepatula in an Amazonian lake

open access: yesBrazilian Journal of Biology
The aim of this research was to study the flood pulse influence and the anthropic impact caused by bauxite tailings on the chemical composition of O. glumaepatula in Batata lake (PA, Brazil). Sampling was carried out in stands of O.
A. Enrich-Prast, F. A. Esteves
doaj   +1 more source

Dynamics of fish populations and communities within the Tonle Sap flood pulse system

open access: yesEcosphere
The Tonle Sap Lake (TSL) is the most fish‐diverse lake in Southeast Asia and ranks among the world's richest inland fisheries. Although previous studies have described broad changes in fish abundance and community composition across the lake's annual ...
Mathieu Chevalier   +6 more
doaj   +1 more source

Spatial connectivity of aquatic macrophytes and flood cycle influence species richness of an ant community of a Brazilian floodplain

open access: yesSociobiology, 2013
Despite the environmental and economic importance of Pantanal, there are few studies quantifying the influence of sazonality and spatial variation on biological diversity in this ecosystem.
Marlon C. Pereira   +3 more
doaj  

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