Results 1 to 10 of about 14,859 (139)

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, M. Iversen, S. Giering, V. Riou, S. A. Henson, L. Berline, L. Guilloux, R. Sanders   +7 more
doaj   +4 more sources

Global estimate of mesopelagic mesozooplankton biomass [PDF]

Scientific Reports
The global standing stock of mesozooplankton in the mesopelagic zone was assessed using estimates of particulate organic carbon (POC) and net primary productivity (NPP).
Yulia Egorova, Gabriel Reygondeau, William W. L. Cheung, Evgeny A. Pakhomov   +3 more
doaj   +2 more sources

Projected 21st century compression of mesopelagic habitat in the California current [PDF]

Scientific Reports
Although the mesopelagic zone occupies a substantial volume of the world’s oceans, our results suggest that the livable portion may compress vertically by ~ 40 m or ~ 39% by the end of the century.
Ilysa S. Iglesias, Jerome Fiechter
doaj   +2 more sources

Mesopelagic Mesozooplankton and Micronekton Database [PDF]

Scientific Data
The Mesopelagic Mesozooplankton and Micronekton Database (MMMD) compiles quantitative data on the distribution and density of mesopelagic (200–1000 m) mesozooplankton and micronekton (0.2–20 mm and 20–200 mm) species, using 258 published and unpublished ...
Yulia Egorova, Evgeny A. Pakhomov, Ian McIvor, Andrea Le, Tymofiy Spesivy   +4 more
doaj   +2 more sources

Unlocking the Depths: Use of a Trait‐Based Approach to Reveal the Diversity of Foraging Strategies in a Deep‐Pelagic Fish Community [PDF]

Ecology and Evolution
Community trait structure is shaped by environmental filtering and limiting similarity, balancing abiotic selection and competitive divergence. In the context of environmental change and anthropogenic pressures, increasing our understanding of the ...
Liz Loutrage, Anik Brind'Amour, Benoit Simon‐Bouhet, Rachel Dubourg, Célina Chantre, Jérôme Spitz   +5 more
doaj   +2 more sources

Mesopelagic fishes are important prey for a diversity of predators

Frontiers in Marine Science, 2023
Through daily vertical movements, mesopelagic fishes contribute to global carbon export and, when eaten, link primary consumers to higher trophic level predators.
Ilysa S. Iglesias, Ilysa S. Iglesias, Jarrod A. Santora, Jarrod A. Santora, Jerome Fiechter, John C. Field   +5 more
doaj   +1 more source

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, Ramiro Logares, Mohd Ikram Ansari, Anders Røstad, Maria Lluch Calleja, Xosé Anxelu G. Morán   +5 more
doaj   +1 more source

Divergent patterns of zooplankton connectivity in the epipelagic and mesopelagic zones of the eastern North Pacific

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, Leocadio Blanco‐Bercial   +1 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

Ecomorphology of a predatory deep-sea fish family: does trophic specialization drive hyperspeciation?

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, David W. Kerstetter, Danté Fenolio, Tracey T. Sutton   +3 more
doaj   +1 more source