Results 121 to 130 of about 18,322 (241)

Prokaryotic responses to ammonium and organic carbon reveal alternative CO2 fixation pathways and importance of alkaline phosphatase in the mesopelagic North Atlantic

open access: yesFrontiers in Microbiology, 2016
To decipher the response of mesopelagic prokaryotic communities to input of nutrients, we tracked changes in prokaryotic abundance, extracellular enzymatic activities, heterotrophic production, dark dissolved inorganic carbon (DIC) fixation, community ...
Federico Baltar   +7 more
doaj   +1 more source

The Vertical and Horizontal Distribution of Deep-Sea Crustaceans in the Order Euphausiacea in the Vicinity of the DeepWater Horizon Oil Spill

open access: yesFrontiers in Marine Science, 2020
The vertical and horizontal distributions of Euphausiacea in the northern Gulf of Mexico (GOM), including the location of the Deepwater Horizon oil spill, were analyzed from 340 trawl samples collected between April and June 2011. This study is the first
Tamara M. Frank   +4 more
doaj   +1 more source

Active Transport of Carbon to Demersal Fish Communities in Shelf‐Slope‐Abyssal Systems of the North Atlantic Ocean

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The biological carbon pump sequesters carbon through passive fluxes of biologically derived carbon, and by active vertical movement of marine organisms. Trophic coupling between pelagic and benthic communities increases the efficiency of the biological carbon pump as less carbon is lost to remineralization.
Daniel Ottmann   +6 more
wiley   +1 more source

Delineating Marine Planktonic Habitats Through the Biogeochemical‐Argo Array Data

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract Phytoplankton play a crucial role in regulating marine biogeochemical pathways but studying their spatial and temporal dynamics often requires extensive and laborious oceanographic expeditions. Here, we report a novel use of Biogeochemical‐Argo data to delineate planktonic habitats in the Tropical North Atlantic Ocean (TNA).
Anh H. Pham   +2 more
wiley   +1 more source

Swimbladder morphology masks Southern Ocean mesopelagic fish biomass [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2019
Within the twilight of the oceanic mesopelagic realm, 200–1000 m below sea level, are potentially vast resources of fish. Collectively, these mesopelagic fishes are the most abundant vertebrates on Earth, and this global fish community plays a vital role in the function of oceanic ecosystems.
Dornan, Tracey   +3 more
openaire   +5 more sources

Hidden Bioavailable Dissolved Organic Matter in the Deep Northwestern Pacific Ocean

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The deep ocean is widely viewed as a stable reservoir of dissolved organic carbon (DOC) that is highly resistant to microbial degradation. However, this paradigm may be oversimplified. In a cross‐latitude survey conducted in the northwestern Pacific Ocean (155°E, 28.5°N–41.5°N), bulk DOC concentrations were found to be relatively constant ...
Yixian Li   +4 more
wiley   +1 more source

Mesoscale eddies influence the movements of mature female white sharks in the Gulf Stream and Sargasso Sea [PDF]

open access: yes, 2018
© The Author(s), 2018. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Scientific Reports 8 (2018): 7363, doi:10.1038/s41598-018-25565-8.Satellite-tracking of mature white ...
Braun, Camrin D.   +7 more
core   +1 more source

Diversity and Ecological Potentials of Marine Viruses Inhabiting Continental Shelf Seas

open access: yesAdvanced Science, Volume 13, Issue 1, 5 January 2026.
To the best of the knowledge, this study provides the largest viral genome dataset from a continental shelf sea. It reveals that over half of vOTUs are novel, highlighting the remarkable viral novelty in the eastern continental shelf seas of China (ECSSC).
Xiaoyue Guo   +9 more
wiley   +1 more source

Evidence for dependency of bacterial growth on enzymatic hydrolysis of particulate organic matter in the mesopelagic ocean [PDF]

open access: yes, 1993
Organic material entering the oceanic mesopelagic zone may either reenter the euphotic zone or settle into deeper waters. Therefore it is important to know about mechanisms and efficiency of substrate conversion in this water layer.
Ducklow, H.   +2 more
core   +1 more source

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