Results 31 to 40 of about 5,915 (215)

Combined use of chlorophyll a and phycocyanin fluorescence sensors for quantification and differentiation of phytoplankton: a useful approach for small surface water bodies

open access: yesActa Biologica Slovenica, 2018
Sensors based on in vivo measurements of photosynthetic pigments fluorescence enable real-time phytoplankton monitoring with high spatial and temporal resolution. A combination of chlorophyll a (CHL) and phycocyanin (PC) fluorescence sensors was used for
Tinkara Rozina   +3 more
doaj   +1 more source

Zooplankton size composition and production just after drastic ice coverage changes in the northern Bering Sea assessed via ZooScan

open access: yesFrontiers in Marine Science, 2023
Drastic environmental changes were noted in the northern Bering Sea in 2018. A reduction in sea ice affected several trophic levels within the ecosystem; this resulted in delayed phytoplankton blooms, the northward shifting of fish stocks, and a decrease
Shino Kumagai   +4 more
doaj   +1 more source

Biomass and distribution of filamentous cyanobacteria, Trichodesmium spp., in spring in the East China Sea [PDF]

open access: yes, 2007
Trichodesmium biovolume and its distributional pattern were investigated in spring in the East China Sea. It showed surface-biased distribution at all stations where it was detected. The maximum biovolume in each water column was 0-4.4 × 107 μm3 L-1, and
KENICHI KATAYAMA   +7 more
core   +1 more source

Olive Tree Biovolume from UAV Multi-Resolution Image Segmentation with Mask R-CNN

open access: yesSensors, 2021
Olive tree growing is an important economic activity in many countries, mostly in the Mediterranean Basin, Argentina, Chile, Australia, and California. Although recent intensification techniques organize olive groves in hedgerows, most olive groves are ...
Anastasiia Safonova   +4 more
doaj   +1 more source

Morphology and LPS content for the estimation of marine bacterioplankton biomass in the Ionian Sea

open access: yesScientia Marina, 2004
The abundance, morphotypes and biomass of the bacterial assemblages were investigated in the Ionian Sea by using two different methods: the epifluorescent microscopy technique for enumerating and sizing bacterial cells, and the determination of bacterial
Rosabruna La Ferla   +2 more
doaj   +1 more source

Saccharomyces Cerevisiae Var. Boulardii: Valuable Probiotic Starter for Craft Beer Production

open access: yesApplied Sciences, 2019
The use of probiotic starters remaining viable in unpasteurized and unfiltered beers could significantly increase health benefits. Here, the probiotic Saccharomyces cerevisiae var.
Joaquín Mulero-Cerezo   +2 more
doaj   +1 more source

Effect of brushing on surface roughness, fluoride release, and biofilm formation with different tooth-colored materials

open access: yesJournal of Dental Sciences, 2022
Background/purpose: Tooth brushing, material mechanical ageing procedure, is the most effective way in removing biofilm. The purpose of this study was to investigate the surface roughness, fluoride-release, and S.
Anisha Komalsingsakul   +2 more
doaj   +1 more source

Hydrodynamics Regulate Longitudinal Plankton Community Structure in an Alpine Cascade Reservoir System

open access: yesFrontiers in Microbiology, 2021
Previous studies report significant changes on biotic communities caused by cascade reservoir construction. However, factors regulating the spatial–temporal plankton patterns in alpine cascade reservoir systems have not been fully explored.
Yang Liu   +13 more
doaj   +1 more source

Abundance, biovolume and biomass of heterotrophic dinoflagellates at station TT007_6-CTD67

open access: yes, 2003
Abundance, biovolume and biomass of heterotrophic dinoflagellates at station TT007_6 ...
Peter Verity (6970808), Verity, Peter
core   +1 more source

Sensoriamento remoto hidroacústico no mapeamento de macrófitas aquáticas submersas Hydro-acoustic remote sensing in submerged aquatic macrophyte mapping

open access: yesPlanta Daninha, 2012
Macrófitas são importantes produtoras primárias do ecossistema aquático, e o desequilíbrio do ambiente pode ocasionar seu crescimento acelerado. Portanto, levantamentos de dados relacionados a macrófitas submersas são importantes para contribuir na ...
L.H.S. Rotta   +5 more
doaj   +1 more source

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