Results 21 to 30 of about 5,609,357 (351)

Benthic and Pelagic Contributions to Primary Production: Experimental Insights From the Gulf of Trieste (Northern Adriatic Sea)

Frontiers in Marine Science, 2022
Although the 14C-method remains one of the most sensitive measures of primary production in marine ecosystems, few data from coastal sublittoral areas are available.
Tamara Cibic, Laura Baldassarre, Federica Cerino, Cinzia Comici, Daniela Fornasaro, Martina Kralj, Michele Giani   +6 more
doaj   +1 more source

Evolution of Lithium-Beryllium-Boron and Oxygen in the early Galaxy [PDF]

, 2001
Oxygen is a much better evolutionary index than iron to describe the history of Lithium-Beryllium-Boron (LiBeB) since it is the main producer of these light elements at least in the early Galaxy.
Boesgaard, Bykov, Elisabeth Vangioni-Flam, Fields, Israelian, Meneguzzi, Michel Cassé, Ramaty, Vangioni-Flam, Vangioni-Flam, Vangioni-Flam, Vangioni-Flam   +11 more
core   +3 more sources

Evidence for enhanced primary production resulting from relative vorticity induced upwelling in the Catalan Current

Scientia Marina, 2004
In baroclinic fronts, jets and eddies, potential vorticity, P = (V + f) / D, connects horizontal motions of planetary vorticity, f, and relative vorticity, V, to vertical transport through increases and decreases of the water column height, D.
Timothy C. Granata, Marta Estrada, Ulrike Zika, Carolyn Merry   +3 more
doaj   +1 more source

Assessing Drivers of Coastal Primary Production in Northern Marguerite Bay, Antarctica

Frontiers in Marine Science, 2017
The coastal ocean of the climatically-sensitive west Antarctic Peninsula is experiencing changes in the physical and (photo)chemical properties that strongly affect the phytoplankton. Consequently, a shift from diatoms, pivotal in the Antarctic food web,
Patrick D. Rozema, Gemma Kulk, Michiel P. Veldhuis, Anita G. J. Buma, Anita G. J. Buma, Michael P. Meredith, Willem H. van de Poll   +6 more
doaj   +1 more source

Hydrogen-Oxidizing Bacteria Are Abundant in Desert Soils and Strongly Stimulated by Hydration

mSystems, 2020
How the diverse bacterial communities inhabiting desert soils maintain energy and carbon needs is much debated. Traditionally, most bacteria are thought to persist by using organic carbon synthesized by photoautotrophs following transient hydration ...
Karen Jordaan, Rachael Lappan, Xiyang Dong, Ian J. Aitkenhead, Sean K. Bay, Eleonora Chiri, Nimrod Wieler, Laura K. Meredith, Don A. Cowan, Steven L. Chown, Chris Greening   +10 more
doaj   +1 more source

Climate-Driven High Primary Production and Contrasting Export Production in the Eastern North Pacific Subtropical Gyre

Frontiers in Marine Science, 2022
The eastern North Pacific subtropical gyre (NPSG) contributes significantly to global primary production (PP) and export production (EP). In this study, we have investigated the impact of the North Pacific gyre oscillation (NPGO) mode on the temporal ...
Joo-Eun Yoon, Ju-Hyoung Kim, Il-Nam Kim
doaj   +1 more source

Very low metallicity massive star models: Pre-SN evolution and primary nitrogen production [PDF]

, 2006
Two series of models were computed. The first series consists of 20 solar mass models with varying initial metallicity (Z=0.02 down to Z=10^{-8}) and rotation (V_{ini}=0-600 km/s). The second one consists of models with an initial metallicity of Z=10^{-8}
Angulo, Aoki, Aoki, Beers, Bessell, Bromm, Carr, Cayrel, Chiappini, Chiappini, Chieffi, Chieffi, Chieffi, Chiosi, Christlieb, de Jager, Depagne, El Eid, François, Frebel, Frebel, Fukuda, Gil-Pons, Heger, Heger, Heger, Herwig, Hirschi, Hirschi, Hirschi, Iglesias, Israelian, Israelian, Iwamoto, Izotov, Limongi, Maeder, Maeder, Maeder, Maeder, Maeder, Maeder, Maeder, Maeder, Maeder, Meynet, Meynet, Meynet, Nomoto, Norris, Nugis, Picardi, Plez, Prantzos, R. Hirschi, Ryan, Salpeter, Schneider, Siess, Spite, Suda, Thielemann, Tumlinson, Umeda, Vink, Vink, Vink, Weiss, Woosley, Woosley, Yoon, Zahn   +71 more
core   +3 more sources

A Quantitative Risk Assessment Model for Listeria monocytogenes in Ready-to-Eat Cantaloupe

Foods
This study introduces a farm-to-fork quantitative risk assessment (QRA) model for invasive listeriosis from ready-to-eat diced cantaloupe. The modular model comprises seven stages—preharvest (soil and irrigation contamination), harvest (cross ...
Laurent Guillier, Ursula Gonzales-Barron, Régis Pouillot, Juliana De Oliveira Mota, Ana Allende, Jovana Kovacevic, Claudia Guldimann, Aamir Fazil, Hamzah Al-Qadiri, Qingli Dong, Akio Hasegawa, Vasco Cadavez, Moez Sanaa   +12 more
doaj   +1 more source

Size-fractionated phytoplankton biomass and production in the tropical Atlantic

Scientia Marina, 2011
Two meridional transects were conducted in the tropical and subtropical Atlantic to describe (i) the spatial variability of total and size-fractionated (picophytoplankton and phytoplankton > 2 μm) chlorophyll a (chl a) concentration and primary ...
Enrique Moreno-Ostos, Ana Fernández, María Huete-Ortega, Beatriz Mouriño-Carballido, Alejandra Calvo-Díaz, Xosé Anxelu G. Morán, Emilio Marañón   +6 more
doaj   +1 more source

Biological activity in the wake of an island close to a coastal upwelling [PDF]

, 2008
Hydrodynamic forcing plays an important role in shaping the dynamics of marine organisms, in particular of plankton. In this work we study the planktonic biological activity in the wake of an island which is close to an upwelling region.
Feudel, U., Hernandez-Garcia, E., Lopez, C., Sandulescu, M.   +3 more
core   +2 more sources