Results 1 to 10 of about 5,546,226 (282)

Productivity of Spitsbergen fjords ecosystems in summer—Spatial changes of in situ primary production in Kongsfjorden and Hornsund in the period 1994–2019 [PDF]

open access: yesEcology and Evolution
This comprehensive study examines primary production (PP) within the Spitsbergen fjords, Hornsund, and Kongsfjord, over a 25‐year period (1994–2019), across 45 stations and 348 incubation levels at various depths.
Katarzyna Dragańska‐Deja   +3 more
doaj   +2 more sources

Interactions between Ewes and Rams during Mating Can Be Used to Predict Lambing Dates Accurately, but Not Sire

open access: yesAnimals, 2022
Ewes often lamb over extended periods so the level of nutrition during pregnancy and lambing may be suboptimal for ewes that conceived later during mating.
Kirsty Cunningham   +5 more
doaj   +1 more source

Chlamydia pecorum detection in aborted and stillborn lambs from Western Australia

open access: yesVeterinary Research, 2021
Lamb survival is an important welfare and productivity issue for sheep industries worldwide. Lower lamb survival has been reported for primiparous ewes, but the causes of this are not well studied.
Tom Clune   +7 more
doaj   +1 more source

Phytoplankton and Bacterial Responses to Monsoon-Driven Water Masses Mixing in the Kuroshio Off the East Coast of Taiwan

open access: yesFrontiers in Marine Science, 2021
Biogeochemical responses to mixing were examined in two cruise surveys along a transect across the Kuroshio Current (KC) in May and July 2020. Two stations located at the South China Sea (SCS)–KC mixing and the KC waters were chosen for the diel study ...
Chao-Chen Lai   +8 more
doaj   +1 more source

Development and application of a phytoplankton primary production model for well-mixed lakes; pp. 267–276 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2013
For estimations of the ecological state of a lake and its future trends, data on seasonal and long-term variations of primary production are most necessary.
Tuuli Kauer   +3 more
doaj   +1 more source

Pan-Arctic Ocean Primary Production Constrained by Turbulent Nitrate Fluxes

open access: yesFrontiers in Marine Science, 2020
Arctic Ocean primary productivity is limited by light and inorganic nutrients. With sea ice cover declining in recent decades, nitrate limitation has been speculated to become more prominent.
Achim Randelhoff   +11 more
doaj   +1 more source

Global primary production [PDF]

open access: yesCurrent Biology, 2007
The idea of planting trees to reduce carbon emissions is often discussed. The scope of the problem can be nicely illuminated at the global scale. If all land use changes of the previous two centuries were reversed, then carbon accumulation in the atmosphere would be 80 PgC less than the present, leading to a global cooling of 0.4°C.
openaire   +2 more sources

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

Hydrochemical conditions and phytoplankton in the Kievka estuary (Japan Sea) with calculation of primary production by phosphorus utilization

open access: yesИзвестия ТИНРО, 2023
Spatial distribution of chemical parameters, as concentration of dissolved inorganic phosphorus (DIP), inorganic silica, nitrite nitrogen, nitrate nitrogen, ammonium nitrogen, total iron, dissolved oxygen, and biochemical oxygen demand (BOD5) is ...
Anna S. Kurnosova, M. A. Shulgina
doaj   +1 more source

In situ primary production in young Antarctic sea ice [PDF]

open access: yes, 2002
An in situ incubation technique used successfully to measure the photosynthetic carbon assimilation of internal algal assemblages within thick multiyear Arctic sea ice was developed and improved to measure the photosynthetic carbon assimilation within ...
Mock, Thomas
core   +1 more source

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