Results 11 to 20 of about 15,462 (278)

A global diatom database – abundance, biovolume and biomass in the world ocean [PDF]

open access: goldEarth System Science Data, 2012
Phytoplankton identification and abundance data are now commonly feeding plankton distribution databases worldwide. This study is a first attempt to compile the largest possible body of data available from different databases as well as from individual ...
Karine Leblanc   +22 more
semanticscholar   +15 more sources

Visualisation and biovolume quantification in the characterisation of biofilm formation in Mycoplasma fermentans [PDF]

open access: yesScientific Reports, 2021
The ability of mycoplasmas to persist on surfaces has been widely acknowledged, despite their fastidious nature. However, the organism’s capability to form a recognisable biofilm structure has been identified more recently.
Ammar A Awadh   +6 more
semanticscholar   +5 more sources

A Simple yet Accurate Method for the Estimation of the Biovolume of Planktonic Microorganisms

open access: goldPLoS ONE, 2016
Determining the biomass of microbial plankton is central to the study of fluxes of energy and materials in aquatic ecosystems. This is typically accomplished by applying proper volume-to-carbon conversion factors to group-specific abundances and ...
Alessandro Saccà
openalex   +3 more sources

Biovolume and surface area calculations for microalgae, using realistic 3D models.

open access: yesScience of The Total Environment, 2021
Morphology and spatial dimensions of microalgal units (cells or colonies) are among the most relevant traits of planktic algae, which have a pronounced impact on their basic functional properties, like access to nutrients or light, the velocity of sinking or tolerance to grazing.
G. Borics   +6 more
semanticscholar   +3 more sources

Zooplankton Biomass in Ponds - Determination of Biovolume and Dry Weight [PDF]

open access: diamondActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2023
The aim of this study was to evaluate the possibility of using simple screening methods to determine zooplankton biomass in ponds. Among the applicable methods, we selected sedimentation determination of wet biomass and dry biomass determination. Of the 369 samples analysed, the median volumetric zooplankton biomass was 0.012 ml.l-1 and the median dry ...
Radovan Kopp   +2 more
openalex   +4 more sources

Study on primary production with emphasis on phytoplankton biovolume and chlorophyll-a in the southern Caspian Sea-Goharbaran region

open access: green‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Phytoplankton biovolume and concentration of chlorophyll a are of major concerns in estimating the primary production in aquatic ecosystems. The objective of the present study was to estimate the concentration of chlorophyll a and its relation to ...
A. Makhlogh; H. Narollahzadeh Saravi; F. Eslami; A. Keyhansani; F. Vahedi
doaj   +2 more sources

A Comprehensive Survey with Quantitative Comparison of Image Analysis Methods for Microorganism Biovolume Measurements [PDF]

open access: yesArchives of Computational Methods in Engineering, 2022
With the acceleration of urbanization and living standards, microorganisms play an increasingly important role in industrial production, bio-technique, and food safety testing.
Jiawei Zhang   +8 more
semanticscholar   +1 more source

Relationships between Biovolume and Biomass of Naturally Derived Marine Bacterioplankton. [PDF]

open access: yesApplied and Environmental Microbiology, 1987
Microscopic estimation of bacterial biomass requires determination of both biovolume and biovolume-to-biomass conversion. Both steps have uncertainty when applied to the very small bacteria typically found in natural seawater. In the present study, natural bacterioplankton assemblages were freshly collected, passed through 0.6-μm-pore-size
Sanghoon Lee, J. Fuhrman
semanticscholar   +5 more sources

Community-driven variations in snow algae color modulate snow albedo reduction. [PDF]

open access: yesNew Phytol
Summary Snow algae blooms visibly alter snow color and surface energy balance, yet the biological basis of this variability remains unclear. We investigated how pigment composition and community structure shape the optical properties of snow algae blooms of distinct colors – red, orange, and green – co‐occurring within the same snowfield in Glacier ...
Almela P   +4 more
europepmc   +2 more sources

Toxic effects of chlorpyrifos, cypermethrin and glyphosate on the non-target organism Selenastrum capricornutum (Chlorophyta)

open access: yesAnais da Academia Brasileira de Ciências, 2021
The toxic effects of the insecticides chlorpyrifos and cypermethrin, and the herbicide glyphosate on the growth, biovolume and ultrastructure of the green microalgae Selenastrum capricornutum were evaluated.
CAROLINA FERNÁNDEZ   +2 more
doaj   +1 more source

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