Results 151 to 160 of about 235,489 (205)

Novel cyanotoxin-producing Synechococcus in tropical lakes

Water Research, 2021
Picocyanobacteria are small cyanobacteria, being about 0.8-1.5 µm in size. They are present in freshwater environments all over the world and are known to cause harmful algal blooms, although their effects are not well understood. Algal blooms are important to manage because they threaten freshwater resources, with potentially severe effects on ...
Karina Yew-Hoong Gin, Zhi Yang Sim, Kwan Chien Goh, Jerome Wai Kit Kok, Shu Harn Te, Ngoc Han Tran, Wenxuan Li, Yiliang He   +7 more
openaire   +2 more sources

Dynamics of a large tropical lake: Lake Maracaibo

Aquatic Sciences, 2005
The dynamics of a large tropical lake, Lake Maracaibo, Venezuela, are described using field data and the 3D Estuary and Lake Computer Model (ELCOM). ADCP data from November 1998 and CTD data spanning September 1998 to April 1999 are presented. Seawater enters Lake Maracaibo via an augmented natural connection to the Gulf of Venezuela, which allows an ...
Bernard E. Laval, Jörg Imberger, Angelos N. Findikakis   +2 more
openaire   +1 more source

Thermoclines in Tropical Lakes

Nature, 1932
THE thermocline is a feature of most temperate lakes during the summer months, and is normally destroyed during the winter by a complete overturn of the water, due to cooling at the surface. Little work has been done, however, on such conditions in equatorial lakes, where there is no marked seasonal difference in temperature.
E. B. WORTHINGTON, L. C. BEADLE
openaire   +1 more source

Microplastic pollution in sediments of tropical shallow lakes

Science of The Total Environment, 2023
Forty-eight tropical shallow lakes (depth ≤ 4 m) across a climatic gradient were assessed for microplastic (MPs;
Jacqueline Santos, Silva-Cavalcanti, Jayne Crisleny Pereira, Silva, Flávio Montenegro, de Andrade, Andréa Monteiro Santana Silva, Brito, Monica Ferreira da, Costa   +4 more
openaire   +2 more sources

Environmental status of a tropical lake system

Environmental Monitoring and Assessment, 2010
Eutrophication has become a serious threat to the lake systems all over the world. This is mainly due to the pollution caused by anthropogenic activities. Carlson trophic state index (CTSI) is commonly used for the classification of trophic conditions of surface waters.
A M, Sheela, J, Letha, Sabu, Joseph
openaire   +2 more sources

Lake evaporation estimates in tropical Africa (Lake Ziway, Ethiopia)

Journal of Hydrology, 2001
Abstract Estimates of evaporation from an open shallow lake in tropical Africa (Lake Ziway, Main Ethiopian Rift) are made by using monthly hydrometeorological data available for the past three decades. On the one hand, annual average estimates are inferred from three climatic approaches, which can be applied in areas with limited meteorological data.
Vallet-Coulomb, Christine, Legesse, D, Gasse, Francoise, Travi, Yves, Chernet, T   +4 more
openaire   +2 more sources

Phytoplankton studies in a tropical lake (Lake Xolotlán, Nicaragua)

SIL Proceedings, 1922-2010, 1991
(1991). Phytoplankton studies in a tropical lake (Lake Xolotlan, Nicaragua) SIL Proceedings, 1922-2010: Vol. 24, No. 2, pp. 1158-1162.
E. L. Hooker, S. Hernàndez, N. Chow, L. Vargas   +3 more
openaire   +1 more source

Temporal variability of phytoplankton in tropical lakes

Oecologia, 1979
Temporal variability of ecological systems continues to receive theoretical and empirical attention but remains inadequately documented at low latitudes. Results of my comparative investigation of photosynthetic rates of phytoplankton in 6 equatiorial African lakes and similar information from 20 South American, Asian and African lakes studied by ...
openaire   +2 more sources