Results 91 to 100 of about 6,073 (220)
Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]
, 2010 Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
core +2 more sources
Major contribution of particle‐associated microbes to deep‐sea organic carbon degradation
Limnology and Oceanography, Volume 71, Issue 1, January 2026.Abstract The biological carbon pump mediates the export of particulate organic carbon from the euphotic zone to the deep ocean, where it provides the base of the food web. Although deep‐sea microbial metabolism is considered to be largely associated with macroscopic particles, such as marine snow, the specific contribution of particle‐associated ...
Marilena Heitger +6 more
wiley +1 more source
Advances in Oceanography and Limnology, 2016 In this study, we carried out dilution experiments at the surface and in the mesopelagic and bathypelagic layers at 15 sites in the Mediterranean Sea that covered a wide range of trophic conditions.
Luca Zoccarato +2 more
doaj +1 more source
Net and Acoustic Examination of Bathypelagic Nekton on the Mid-Atlantic Ridge [PDF]
, 2009 Spatial distributions of organisms play a key role in facilitating trophic interactions, which influence pelagic ecosystem structure and function. This study combines discrete net trawl sampling with continuous acoustic measurements to investigate the ...
Anderson, C. I. H. +2 more
core +1 more source
Comparison of Niskin vs. in situ approaches for analysis of gene expression in deep Mediterranean Sea water samples [PDF]
, 2014 Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part II: Topical Studies in
Edgcomb, Virginia P. +5 more
core +1 more source
Marine Mammal Science, Volume 42, Issue 1, January 2026.ABSTRACT The Mediterranean common dolphin (Delphinus delphis) presents an enigmatic natural history during the past centuries. Widely prevalent in the 19th and early 20th centuries, it faced a significant decline across most of the basin by the late 1960s caused by multiple anthropogenic threats, including culling, bycatch, prey depletion, and habitat ...
Martina Pasino +37 more
wiley +1 more source
Geographic distribution of archaeal ammonia oxidizing ecotypes in the Atlantic Ocean
Frontiers in Microbiology, 2016 In marine ecosystems, Thaumarchaeota are most likely the major ammonia oxidizers. While ammonia concentrations vary by about two orders of magnitude in the oceanic water column, archaeal ammonia oxidizers (AOA) vary by only one order of magnitude from ...
Eva eSintes +4 more
doaj +1 more source
Strong contribution of diatom resting spores to deep-sea carbon transfer in naturally iron-fertilized waters downstream of South Georgia [PDF]
, 2016 Biogeochemical and diatom export fluxes are presented from two bathypelagic sediment trap deployments in the Antarctic Zone of the Southern Ocean. One of the sediment traps was deployed in very productive, naturally iron-fertilized waters downstream of ...
Blain, S. +4 more
core +3 more sources
Marine Mammal Science, Volume 42, Issue 1, January 2026.ABSTRACT Studies of cetacean diving behavior in multiple locations in different ocean basins allow for an assessment of variability within and among populations. We examine foraging dive behaviors of goose‐beaked whales (Ziphius cavirostris) and dense‐beaked whales (Mesoplodon densirostris) using data from 132 tagged whales in seven locations in the ...
Jay Barlow +18 more
wiley +1 more source
MicrobiologyOpen, 2020 Microbially mediated decomposition of particulate organic carbon (POC) is a central component of the oceanic carbon cycle, controlling the flux of organic carbon from the surface ocean to the deep ocean.
Ying Liu +5 more
doaj +1 more source