Results 101 to 110 of about 12,499 (209)

Drivers and food web effects of Gonyostomum semen blooms [PDF]

open access: yes, 2013
The flagellate Gonyostomum semen forms dense late-summer blooms in humic lakes and is a nuisance to swimmers because it forms a slimy coat on the skin, causing irritation in sensitive individuals. Increasing occurrence and bloom incidence of G. semen has
Johansson, Karin S. L.
core  

Differential effects of nitrogen and sulfur deprivation on growth and biodiesel feedstock production of chlamydomonas reinhardtii [PDF]

open access: yes, 2012
Cataloged from PDF version of article.Biodiesel production from microalgae is a promising approach for energy production; however, high cost of its process limits the use of microalgal biodiesel.
Albersheim   +42 more
core   +1 more source

Periphytic algal biomass in two distinct regions of a tropical coastal lake

open access: yesActa Limnologica Brasiliensia
AIM: This study assessed the phycoperiphyton biomass in two regions submitted to different human impacts on Juara Lake, a coastal ecosystem with multiple uses, to order to test the hypothesis that the sampling sites that receive domestic sewage shows ...
Stéfano Zorzal de Almeida   +1 more
doaj  

The use of genus-level determinations and biovolume classes as surrogates to indicate environmental drivers of stream diatom communities in the Brazilian Pampa [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The demand for low-cost and time-efficient biomonitoring and ecological assessment strategies has increased due to threats to biodiversity. We evaluated the ability of surrogates (genera and biovolume classes) to access information provided by diatom ...
ANA PAULA TAVARES COSTA, FABIANA SCHNECK
doaj   +1 more source

Recent progress in the identification and determination of freshwater phytoplankton in the natural environment [PDF]

open access: yes, 1997
The biomass of the phytoplankton and its composition is one of the most important factors in water quality control. Determination of the phytoplankton assemblage is usually done by microscopic analysis (Utermöhl's method). Quantitative estimations of the
Lohmann, C., Wilhelm, C.
core  

Réseaux trophiques et production piscicole en étangs fertilisés (Dordogne, France) [PDF]

open access: yes, 2002
Des séries de données (physicochimie, plancton, poisson) collectées pendant deux saisons consécutives sur deux groupes d'étangs de pisciculture de Dordogne (Sud-ouest de la France) ont été analysées statistiquement (analyses en composantes principales ...
Bouretz, N., Schlumberger, O.
core   +2 more sources

Phytoplankton community and limnochemistry of Piburger See (Tyrol, Austria) 28 years after lake restoration

open access: yesJournal of Limnology, 2002
Phytoplankton community and limnochemistry of Piburger See, a small soft-water, meromictic lake situated at 913 m a.s.l. in a crystalline area of the Central Eastern Alps of Tyrol (Austria), were investigated 28 years after the beginning of lake ...
Hansjörg THIES, Monica TOLOTTI
doaj   +1 more source

Capsular polysaccharides of cultured phototrophic biofilms [PDF]

open access: yes, 2009
Phototrophic biofilm samples from an Italian wastewater treatment plant were studied in microcosm experiments under varying irradiances, temperatures and flow regimes to assess the effects of environmental variables and phototrophic biomass on capsular ...
Albertano, P   +4 more
core   +1 more source

Biovolume Revisited: A Relative Diversity Index for Paleological Analyses [PDF]

open access: yes, 1981
Author Institution: Wright State UniversityA new application of the biovolume abundance index is proposed for relative diversity demography in paleoecological analyses.
Ausich, William I.
core  

A new approach to predicting and understanding cyanobacteria bloom toxicity

open access: yes
Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Anusuya Willis, Michele A. Burford
wiley   +1 more source

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