1 - 10 of 17 articles
A general view of Lake Xolotlán (known also as Lake Managua) and the research carried out during the Project Limnology Applied to Lake Managua (PLALM) are reported here. A summarized account of the results, given in details as seperated papers elsewhere in the same volume, is also presented.
The hydrochemical character of Lake Xolotlán (Managua) is clearly dominated by sodium bicarbonate, but the lake is also strongly influenced by thermal activities in its coastal and bottom areas which contribute to high concentrations of chlorides and sodium. Lake Xolotlán is endorheic and has a...
The species composition of the phytobenthos in the littoral of Lake Xolotlán (Managua) was determined. Sampling was carried out in November 1987 (end of the rainy season) and in July–August 1988 (rainy season). Sixty-eight taxa were identified;viz. 47 Bacillariophyceae, 13 Cyanophyta and 8...
Results of two years of research on phytoplankton species composition in Lake Xolotlán (Managua) are presented. A summary of the planktonic algae from other Nicaraguan lakes is also included. One hundred and twenty phytoplankton taxa were identified. A list of species and comments about relevant...
Seasonal changes in the pytoplankton community was studied in Lake Xolotlán (Managua). Cyanophyta were found to be dominant throughout the year. Phytoplankton biomass was estimated by volume (wet weight) and by chlorophyll-a at two localities. Seasonal biomass fluctuations were monthly measured...
A study of the vertical distribution of phytoplankton was carried out at the end of the rainy season (October–November), when wind activity is lower and the probability for phytoplankton stratification is enhanced. Samples were taken every other day at 0, 0.5, 1.0 m and, thereafter, for every...
We measured underwater light penetration, phytoplankton biomass and photosynthetic activity during three years (1987–1990) in Lake Xolotlán (L. Managua), Nicaragua. Phytoplankton biomass governed the light climate of the photic zone, but as biomass also was composed of a varying proportion of...
The biomass and production (thymidine incorporation) of heterotrophic bacterioplankton has been assessed from July, 1988, to October, 1989. in Lake Xolotlán, Nicaraqua. Bacterial abundance was high, 2–3.1010 cells.l−1, and bacterial biomass averaged ca. 0.75 mg C.l−1, or roughly 20% of the...
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