Results 181 to 190 of about 2,381 (208)
Dinámica a largo plazo de la biomasa fitoplanctónica en un lago monomíctico cálido tropical
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Hydrobiologia, 2004
The limnology of Lago Biao and Lago Loreto, two tropical crater lakes on the island of Bioko, was investigated for the first time in January of 2002. Lago Biao fills a caldera at 1750 m altitude and is 18.5 m deep. This lake was characterized by low conductivity (11.6-13.3 μS cm−1), low pH (5.9-6.2), an oxycline between 6 and 10 m depth (90-27 ...
Robert Schabetsberger +2 more
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The limnology of Lago Biao and Lago Loreto, two tropical crater lakes on the island of Bioko, was investigated for the first time in January of 2002. Lago Biao fills a caldera at 1750 m altitude and is 18.5 m deep. This lake was characterized by low conductivity (11.6-13.3 μS cm−1), low pH (5.9-6.2), an oxycline between 6 and 10 m depth (90-27 ...
Robert Schabetsberger +2 more
exaly +2 more sources
Fish mercury increase in Lago Manso, a new hydroelectric reservoir in tropical Brazil
Journal of Environmental Management, 2006It has been frequently demonstrated that mercury (Hg) concentrations in fish rise in newly constructed hydroelectric reservoirs in the Northern Hemisphere. In the present work, we studied whether similar effects take place also in a tropical upland reservoir during impoundment and discuss possible causes and implications.
Henriette Wolpher, Markus Meili
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Recent changes in molluscan species diversity of a large tropical lake (Lago de Peten, Guatemala)1
Limnology and Oceanography, 1976The relative and absolute shifts in abundance of five species of freshwater gastropods appear to reflect widespread changes in the drainage basin around Lago de Peten. Fluctuations in the number of shells deposited in 3.7 m of lake sediments are not directly correlated with changes in preserved organic matter or major cations (calcium, magnesium, and ...
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Characterization of tropical freshwater; River Ogun, Lagos Nigeria
Tropical Freshwater Biology, 2020Physico-chemical parameters and microbial contents of Ogun River at Magodo area, Lagos were investigated in relation to its safety for consumption. Water samples were weekly collected between August and December, 2016 at three equi-distance intervals for analysis on physico-chemical parameters, total bacterial count and biochemical tests following ...
R.Y. Oladunjoye +4 more
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Hydrobiologia, 1998
From 1988 to 1993 we assessed the variability of bacterioplankton production and biomass in Lake Xolotlan (L. Managua), Nicaragua via [3H]thymidine incorporation into DNA and cell counting. Bacterial production ranged from 3 to 8 μg C l-1 h-1, and since production was equal throughout the water column, areal production was high (≈ 600–1200 mg C m-2 d-1)
Erikson, Rolf +3 more
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From 1988 to 1993 we assessed the variability of bacterioplankton production and biomass in Lake Xolotlan (L. Managua), Nicaragua via [3H]thymidine incorporation into DNA and cell counting. Bacterial production ranged from 3 to 8 μg C l-1 h-1, and since production was equal throughout the water column, areal production was high (≈ 600–1200 mg C m-2 d-1)
Erikson, Rolf +3 more
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Seasonal changes in water chemistry of a tropical lake (Lago do Castanho, Amazonia, South America)
Verhandlungen Der Internationalen Vereinigung Fur Theoretische Und Angewandte Limnologie International Association of Theoretical and Applied Limnology, 1972exaly +2 more sources
Herbivory in a fragmented tropical forest: patterns from islands at Lago Gatún, Panama
Biodiversity & Conservation, 2002By imposing density-dependent mortality upon their hosts, specialistinsect herbivores are thought to contribute to the maintenance of tree diversityin tropical forests. Forest fragmentation may alter patterns of herbivory,however, which may have important implications for tree species diversity inforest remnants.
A. Elizabeth Arnold, Nigel M. Asquith
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Science of The Total Environment, 1995
Abstract The joint project, ‘Environmental Monitoring and Impact Assessment in Nigeria’ consisted of universities from Nigeria, Germany and Great Britain, and was funded by the European Union. Within the context of this project, an air monitoring station was purchased and placed in Lagos, the former capital of Nigeria.
G. Baumbach +6 more
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Abstract The joint project, ‘Environmental Monitoring and Impact Assessment in Nigeria’ consisted of universities from Nigeria, Germany and Great Britain, and was funded by the European Union. Within the context of this project, an air monitoring station was purchased and placed in Lagos, the former capital of Nigeria.
G. Baumbach +6 more
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Tropical Terminus: The Distress and Disposal of the American Schooner, Allanwilde, in Lagos, 1920-22
Lagos Historical Review, 2005No Abstract Available Lagos Historical Review, vol.
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