Results 31 to 40 of about 6,785 (205)
Depth-resolved particle-associated microbial respiration in the northeast Atlantic [PDF]
Biogeosciences, 2016 Atmospheric levels of carbon dioxide are tightly linked to the depth at which sinking particulate organic carbon (POC) is remineralised in the ocean. Rapid attenuation of downward POC flux typically occurs in the upper mesopelagic (top few hundred metres
A. Belcher +7 more
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Increased prokaryotic diversity in the Red Sea deep scattering layer
Environmental Microbiome, 2023 Background The diel vertical migration (DVM) of fish provides an active transport of labile dissolved organic matter (DOM) to the deep ocean, fueling the metabolism of heterotrophic bacteria and archaea.
Tamara Megan Huete-Stauffer +5 more
doaj +1 more source
Ecology and Evolution, 2023 Due to historical under‐sampling of the deep ocean, the distributional ranges of mesopelagic zooplankton are not well documented, leading to uncertainty about the mechanisms that shape midwater zooplankton community composition.
Stephanie A. Matthews +1 more
doaj +1 more source
Social behaviour in mesopelagic jellyfish [PDF]
Scientific Reports, 2015 AbstractGelatinous organisms apparently play a central role in deep pelagic ecosystems, but lack of observational methodologies has restricted information on their behaviour. We made acoustic records of diel migrating jellyfish Periphylla periphylla forming small, ephemeral groups at the upper fringe of an acoustic scattering layer consisting of krill.
Kaartvedt, Stein +5 more
openaire +3 more sources
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 +7 more
doaj +1 more source
Frontiers in Marine Science, 2023 Two of the main drivers of speciation among aquatic vertebrates are physical isolation (e.g., lakes and streams) and micro-niche availability (e.g., tropical reefs).
Ryan P. McGonagle +3 more
doaj +1 more source
Stranding of Mesopelagic Fishes in the Canary Islands
Animals, 2022 Most mesopelagic fishes perform large diel vertical migrations from the deep-sea zone to the surface. Although there is a trade-off between a higher food availability at the upper layers and an energy cost and predation risk, incursion towards the surface also implies a transport by currents, where the fish are exposed to a stranding risk on the coast.
Airam N. Sarmiento-Lezcano +6 more
openaire +5 more sources
Frontiers in Marine Science, 2021 The Clarion-Clipperton Zone (CCZ) is a 4 million km2 area in the eastern Central Pacific Ocean exhibiting large variability in environmental parameters, particularly oxygen and primary production, that is being targeted for deep-sea polymetallic nodule ...
Jessica N. Perelman +4 more
doaj +1 more source
Animals, 2022 The influence of the lunar cycle on bluefin tuna foraging in the upwelling area of the Strait of Messina was investigated by exploring trophic interaction with mesopelagic fish and cephalopod prey.
Pietro Battaglia +11 more
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Evidence of temperature control on mesopelagic fish and zooplankton communities at high latitudes
Frontiers in Marine Science, 2022 Across temperate and equatorial oceans, a diverse community of fish and zooplankton occupies the mesopelagic zone, where they are detectable as sound-scattering layers. At high latitudes, extreme day-night light cycles may limit the range of some species,
Julek Chawarski +4 more
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