Results 21 to 30 of about 6,014 (204)

High Growth Potential of Long-Term Starved Deep Ocean Opportunistic Heterotrophic Bacteria

Frontiers in Microbiology, 2019
Experiments with bacteria in culture have shown that they often display “feast and famine” strategies that allow them to respond with fast growth upon pulses in resource availability, and enter a growth-arrest state when resources are limiting.
Marta Sebastián, Marta Sebastián, Margarita Estrany, Clara Ruiz-González, Irene Forn, Maria Montserrat Sala, Josep M. Gasol, Josep M. Gasol, Celia Marrasé   +8 more
doaj   +1 more source

Assemblage Structure of Larval Fishes in Epipelagic and Mesopelagic Waters of the Northern Gulf of Mexico

Frontiers in Marine Science, 2021
The early life stages of fishes play a critical role in pelagic food webs and oceanic carbon cycling, yet little is known about the taxonomic composition and distribution of larval fishes in the northern Gulf of Mexico (GOM) below the epipelagic (<200
Verena H. Wang, Carley R. Zapfe, Frank J. Hernandez   +2 more
doaj   +1 more source

Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin [PDF]

, 2006
We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of,4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt.
Aristegui, Javier, Herndl, Gerhard J., Lebaron, Philippe, Reinthaler, Thomas, Robinson, Carol, Van Aken, Hendrik, Veth, Cornelis, Williams, Peter J. le B.   +7 more
core   +2 more sources

Prokaryotic Capability to Use Organic Substrates Across the Global Tropical and Subtropical Ocean

Frontiers in Microbiology, 2020
Prokaryotes play a fundamental role in decomposing organic matter in the ocean, but little is known about how microbial metabolic capabilities vary at the global ocean scale and what are the drivers causing this variation. We aimed at obtaining the first
Maria Montserrat Sala, Clara Ruiz-González, Encarna Borrull, Iñigo Azúa, Zuriñe Baña, Begoña Ayo, Begoña Ayo, X. Antón Álvarez-Salgado, Josep M. Gasol, Josep M. Gasol, Carlos M. Duarte, Carlos M. Duarte   +11 more
doaj   +1 more source

Particles act as ‘specialty centers’ with expanded enzymatic function throughout the water column in the western North Atlantic

Frontiers in Microbiology, 2022
Heterotrophic bacteria initiate the degradation of high molecular weight organic matter by producing an array of extracellular enzymes to hydrolyze complex organic matter into sizes that can be taken up into the cell.
C. Chad Lloyd, Sarah Brown, John Paul Balmonte, John Paul Balmonte, Adrienne Hoarfrost, Adrienne Hoarfrost, Sherif Ghobrial, Carol Arnosti   +7 more
doaj   +1 more source

Too Close for Comfort? Isotopic Niche Segregation in New Zealand’s Odontocetes

Biology, 2022
Species occurring in sympatry and relying on similar and limited resources may partition resource use to avoid overlap and interspecific competition.
Katharina J. Peters, Sarah J. Bury, Bethany Hinton, Emma L. Betty, Déborah Casano-Bally, Guido J. Parra, Karen A. Stockin   +6 more
doaj   +1 more source

Differences in the trophic ecology of micronekton driven by diel vertical migration. [PDF]

, 2019
Many species of micronekton perform diel vertical migrations (DVMs), which ultimately contributes to carbon export to the deep sea. However, not all micronekton species perform DVM, and the nonmigrators, which are often understudied, have different ...
Angel M. V., Clarke T. A., Cohen J., Lancraft T., Pearcy W. G., Team R. C., Vinogradov M. E.   +6 more
core   +1 more source

Archaeal diversity in deep-sea sediments estimated by means of different Terminal-Restriction Fragment Length Polymorphisms (T-RFLP) protocols [PDF]

, 2009
Despite the increasing recognition of the quantitative importance of Archaea in all marine systems, the protocols for a rapid estimate of Archaeal diversity patterns in deep-sea sediments have been only poorly tested yet.
Danovaro, Roberto, Luna, Gian Marco, Pusceddu, Antonio, Stumm, Karen   +3 more
core   +1 more source

High Temporal Variability of Total Organic Carbon in the Deep Northeastern Pacific

Frontiers in Earth Science, 2020
The interseasonal and interannual variability of total organic carbon (TOC) was assessed in the deep northeastern Pacific Ocean, an area characterized by high primary production and organic matter export. Samples were collected from throughout the deeper
Chelsi N. Lopez, Marie Robert, Moira Galbraith, Sarah K. Bercovici, Sarah K. Bercovici, Sarah K. Bercovici, Monica V. Orellana, Monica V. Orellana, Dennis A. Hansell   +8 more
doaj   +1 more source

SAR202 Genomes from the Dark Ocean Predict Pathways for the Oxidation of Recalcitrant Dissolved Organic Matter

mBio, 2017
Deep-ocean regions beyond the reach of sunlight contain an estimated 615 Pg of dissolved organic matter (DOM), much of which persists for thousands of years.
Zachary Landry, Brandon K. Swan, Gerhard J. Herndl, Ramunas Stepanauskas, Stephen J. Giovannoni   +4 more
doaj   +1 more source