Results 11 to 20 of about 5,609,357 (351)

Estimation of algal growth parameters from vertical primary production profiles [PDF]

open access: yes, 1981
Phytoplankton maximum growth rate and the saturation light intensity, Is, can be estimated from vertical profiles of primary production by non-linear least-squares estimation.
Herodek, Sandor, Straten, Gerrit van
core   +2 more sources

Parasite and pathogen effects on ecosystem processes: A quantitative review

open access: yesEcosphere, 2020
Pathogens and parasites (henceforth “pathogens”) can make up a large percentage of the biomass found in ecosystems, and therefore, their impacts on ecosystem processes should be prominent.
Ilya R. Fischhoff   +7 more
doaj   +1 more source

Observational insights into chlorophyll distributions of subtropical South Indian Ocean eddies

open access: yesGeophysical Research Letters, 2017
The South Indian Ocean subtropical gyre has been described as a unique environment where anticyclonic ocean eddies highlight enhanced surface chlorophyll in winter.
François Dufois   +8 more
doaj   +1 more source

Aquatic herbaceous plants of the Amazon floodplains: state of the art and research needed Herbáceas aquáticas das áreas alagáveis amazônicas: estado da arte e estudos necessários

open access: yesActa Limnologica Brasiliensia, 2010
The Amazonian wetlands cover a vast area subject to a monomodal flood pulse with an annual amplitude averaging 10 m, which defines an aquatic phase and a terrestrial phase of great biological importance.
Maria Teresa Fernandez Piedade   +6 more
doaj   +1 more source

The excretion of nitrogen and phosphorus and changes in nitrogen content in the Antarctic amphipod Waldeckia obesa and isopod Glyptonotus antarcticus during long-term starvation

open access: yesThe European Zoological Journal, 2022
Seasonal food availability for benthic feeders in Antarctica can influence the level of excreted metabolites, which may then be a source of N and P for autotrophs.
A. Nędzarek, K. Stepanowska
doaj   +1 more source

Localisation of primary food production in Finland: production potential and environmental impacts of food consumption patterns [PDF]

open access: yes, 2008
The potential for and environmental consequences of localising primary production of food were investigated by considering different food consumption patterns, based on conventional and organic production.
Helenius, Juha   +4 more
core   +1 more source

Interannual Variation in Phytoplankton Primary Production at A Global Scale

open access: yesRemote Sensing, 2013
We used the NASA Ocean Biogeochemical Model (NOBM) combined with remote sensing data via assimilation to evaluate the contribution of four phytoplankton groups to the total primary production.
Cecile S. Rousseaux, Watson W. Gregg
doaj   +1 more source

The muonic longitudinal shower profiles at production [PDF]

open access: yes, 2012
In this paper the longitudinal profile of muon production along the shower axis is studied. The characteristics of this distribution is investigated for different primary masses, zenith angles, primary energies, and different high energy hadronic models.
Ambrosio   +13 more
core   +2 more sources

High Net Primary Production of Mediterranean Seagrass (Posidonia oceanica) Meadows Determined With Aquatic Eddy Covariance

open access: yesFrontiers in Marine Science, 2020
We report primary production and respiration of Posidonia oceanica meadows determined with the non-invasive aquatic eddy covariance technique. Oxygen fluxes were measured in late spring at an open-water meadow (300 m from shore), at a nearshore meadow ...
Dirk Koopmans   +5 more
doaj   +1 more source

Net Community Production and Carbon Exchange From Winter to Summer in the Atlantic Water Inflow to the Arctic Ocean

open access: yesFrontiers in Marine Science, 2019
The eastern Fram Strait and area north of Svalbard, are influenced by the inflow of warm Atlantic water, which is high in nutrients and CO2, influencing the carbon flux into the Arctic Ocean.
Melissa Chierici   +4 more
doaj   +1 more source

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