Results 111 to 120 of about 1,325,021 (311)

Diel vertical migration of Cladocera in a compartment of a tropical reservoir [PDF]

open access: diamond, 2018
Erika dos Santos Silva   +2 more
openalex   +2 more sources

Short-term variability of copepod abundance in Jurumirim Reservoir, São Paulo, Brazil

open access: yesBrazilian Journal of Biology, 2001
Short-term variability in composition and abundance of copepod populations were studied during the dry (winter) and rainy (summer) seasons, at the dam region of Jurumirim Reservoir, São Paulo, Brazil.
PANARELLI E. A.   +2 more
doaj  

The assessment of physico-chemical parameters of Shiroro Lake and its major tributaries [PDF]

open access: yes, 1999
The physico-chemical parameters of the surface water of Shiroro Lake and its major tributaries at their entry point to the reservoir were assessed over a period of eighteen months. As in other African inland water bodies there were seasonal variations in
Kolo, R.J.
core  

Projected Annual and Monsoonal Precipitation Trends of CMIP6 Over Peninsular Malaysia

open access: yesInternational Journal of Climatology, EarlyView.
In this study, we examined historical and projected precipitation temporal trends across Peninsular Malaysia using ground‐based records and CMIP6 models from NEX‐GDDP. Analysing data from 518 reliable gauges over 1973–2022, it identified spatial and monsoonal variations.
Nurul Afiqah Mohamad Arbai   +1 more
wiley   +1 more source

Structure and dynamics of phytoplankton community in the Botafogo reservoir-Pernambuco-Brazil

open access: yesBrazilian Archives of Biology and Technology, 2009
The aim of the present study was to investigate the structure and dynamics of the phytoplankton in the Botafogo reservoir-PE-Brazil. Phytoplankton assemblages were identified from current literature and density was estimated using an inverted microscope.
Giulliari Alan da Silva Tavares de Lira   +2 more
doaj   +1 more source

Characterization of tilapia farming in net cages at a tropical reservoir in Brazil

open access: yes, 2017
Fish farming in reservoirs is a growing aquaculture sector in Brazil. This study aimed to characterize Nile tilapia health and production patterns in net cages at a tropical reservoir in Brazil, to provide baseline information for future studies and ...
Geórgia Dantas Roriz   +3 more
semanticscholar   +1 more source

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

open access: yesInternational Journal of Climatology, EarlyView.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima   +4 more
wiley   +1 more source

Environmental stress and eutrophication in freshwater wetlands: evidence from carbon and nitrogen stable isotopes in cattail (Typha domingensis Pers.)

open access: yesEcological Processes, 2019
Background Florida’s Everglades is a vast freshwater peatland that has been impacted by the alterations of hydrological pattern and water quality which led to changes in plant species composition and biodiversity.
Ziye Zheng   +4 more
doaj   +1 more source

Impact of single and repeated applications of the insecticide chlorpyrifos on tropical freshwater plankton communities [PDF]

open access: yes, 2008
This paper describes the effects of a single and a repeated application of the organophosphorus insecticide chlorpyrifos on zooplankton and phytoplankton communities in outdoor microcosms in Thailand.
Brink, P.J., van den   +2 more
core   +3 more sources

Investigating the toxicity of tropical reservoir sediments using the Allium test

open access: diamond, 2021
Gabrielle Rabelo Quadra   +8 more
openalex   +1 more source

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