Results 101 to 110 of about 15,146 (215)
Chasing after Non-cyanobacterial Nitrogen Fixation in Marine Pelagic Environments
Frontiers in Microbiology, 2017 Traditionally, cyanobacterial activity in oceanic photic layers was considered responsible for the marine pelagic dinitrogen (N2) fixation. Other potentially N2-fixing bacteria and archaea have also been detected in the pelagic water column, however, the
Pia H. Moisander +5 more
doaj +1 more source
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 +4 more
doaj +1 more source
Mesopelagic fishes dominate otolith record of past two millennia in the Santa Barbara Basin. [PDF]
, 2019 The mesopelagic (200-1000 m) separates the productive upper ocean from the deep ocean, yet little is known of its long-term dynamics despite recent research that suggests fishes of this zone likely dominate global fish biomass and contribute to the ...
Checkley, David M, Jones, William A
core
Light and Vision in the Deep-Sea Benthos: I. Bioluminescence at 500-1000 m Depth in the Bahamian Islands [PDF]
, 2012 Bioluminescence is common and well studied in mesopelagic species. However, the extent of bioluminescence in benthic sites of similar depths is far less studied, although the relatively large eyes of benthic fish, crustaceans and cephalopods at bathyal ...
Frank, Tamara M. +4 more
core +2 more sources
Frontiers in Marine ScienceBiomass in the mesopelagic or twilight zone (OTZ) of the ocean is estimated to be 10–100 times that of current annual capture fishery production and plays a fundamental role in regulating global climate via both biological and physical processes ...
Michael J. Weir, Maya Lozinsky, Di Jin
doaj +1 more source
Diverse diazotrophs are present on sinking particles in the North Pacific Subtropical Gyre. [PDF]
, 2019 Sinking particles transport carbon and nutrients from the surface ocean into the deep sea and are considered hot spots for bacterial diversity and activity.
Collins, James R +6 more
core +1 more source
Particulate Cadmium Accumulation in the Mesopelagic Ocean
Global Biogeochemical CyclesAbstractObservations of dissolved cadmium (dCd) and phosphate (PO4) suggest an unexplained loss of dCd to the particulate phase in tropical oxyclines. Here, we compile existing observations of particulate Cd and phosphorus (P), and present new data from the US GEOTRACES GP15 Pacific Meridional Transect to examine this phenomenon from a particulate Cd ...
A. Laubach +6 more
openaire +4 more sources
Frontiers 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
Trophic model of the coastal fisheries ecosystem of the southwest coast of India [PDF]
The Ecopath approach and software were used to construct a trophic model of the coastal fisheries ecosystem of the southwest (SW) coast of India. The model consisted of 11 ecological groups and used estimated landings from all areas along the southwest ...
Immanuel, S. +4 more
core
Organic carbon budget for the eastern boundary of the North Atlantic subtropical gyre : major role of DOC in mesopelagic respiration [PDF]
, 2017 © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Scientific Reports 7 (2017): 10129, doi:10.1038/s41598-017-10974-y.Transports of suspended particulate
Santana-Falcón, Yeray +5 more
core +1 more source