Results 71 to 80 of about 2,037 (173)

Large deep-sea zooplankton biomass mirrors primary production in the global ocean

Nature Communications, 2020
Zooplankton biomass in the dark ocean is thought to be low and weakly coupled to epipelagic primary production, but recent evidence suggests otherwise.
S. Hernández-León, R. Koppelmann, E. Fraile-Nuez, A. Bode, C. Mompeán, X. Irigoien, M. P. Olivar, F. Echevarría, M. L. Fernández de Puelles, J. I. González-Gordillo, A. Cózar, J. L. Acuña, S. Agustí, C. M. Duarte   +13 more
doaj   +1 more source

The Elusive Fraction of Marine Plankton Diversity: Size, Abundance and Taxonomic Composition of 0.2 μm‐Filterable Prokaryotes Across Three Contrasting Coastal Environments

Molecular Ecology, Volume 35, Issue 12, June 2026.
ABSTRACT The existence of prokaryotes escaping filtration through 0.2‐μm filters has been known for decades. Such ‘filterable’ prokaryotes (hereafter ‘FP’) might include true ultra‐small groups (i.e., ultramicrobacteria), but also cells that miniaturize temporally as a physiological strategy to persist under unfavourable conditions, representing a ...
Clara Ruiz‐González, Cristina Andres‐Barrao, Anders Lanzén, Laura Alonso‐Sáez, Hugh Ducklow, Josep M. Gasol, Xosé Anxelu G. Morán   +6 more
wiley   +1 more source

Models of iron speciation and concentration in the stratified epipelagic ocean [PDF]

Geophysical Research Letters, 2011
Surface ocean iron speciation is simulated using a time‐dependent box‐model of light‐mediated redox cycling over a range of aeolian inputs of soluble iron in the stratified epipelagic ocean. At steady‐state, Dissolved iron (DFe) concentration increases with aeolian input of soluble iron up to 0.1 μmol m−2 d−1, and is limited by the solubility of ferric
Song‐Miao Fan, John P. Dunne
openaire   +1 more source

Potential and expression of carbohydrate utilization by marine fungi in the global ocean

Microbiome, 2021
Background Most of the research on the cycling of carbon in the open-ocean has focused on heterotrophic prokaryotes and eukaryotic phytoplankton, but the role of pelagic fungi remains largely enigmatic.
Federico Baltar, Zihao Zhao, Gerhard J. Herndl   +2 more
doaj   +1 more source

2D to 3D: Exploring Variation of Niche Dimensionality Across Consumers in a Coastal Arctic Ecosystem and Implications on Interpretation

Ecology and Evolution, Volume 16, Issue 5, May 2026.
We compared the traditional two‐dimensional (2D: δ13C and δ15N) isotopic niches with a three‐dimensional (3D: δ13C, δ15N, and δ34S) framework to evaluate changes in niche size and overlap. Overall, invertebrates and benthic‐associated species showed greater changes in niche size and reduced overlap using the 3D approach.
Paloma C. Carvalho, Kelsey F. Johnson, Kyle H. Elliott, Steven H. Ferguson, Aaron T. Fisk, H. Grant Gilchrist, Kevin J. Hedges, Oliver P. Love, C. J. Mundy, Andrea Niemi, Wesley R. Ogloff, Bruno Rosenberg, Cortney A. Watt, David J. Yurkowski   +13 more
wiley   +1 more source

On catch of deep-sea shark Zameus squamulosus (Somniosidae, Squaliformes) in the epipelagic layer of the North-West Pacific

Известия ТИНРО, 2016
Two specimens of velvet dogfish Zameus squamulosus (TL 68.0 and 68.4 cm) caught in the epipelagic layer of the North-West Pacific are described, including morphometric parameters, number of vertebras, number of teeth rows, number of mitral valves, and ...
Vladimir N. Dolganov
doaj   +1 more source

Integrating biotic interactions in niche analyses unravels patterns of community composition in clownfishes

Ecological Monographs, Volume 96, Issue 2, May 2026.
Abstract Mutualistic interactions play a fundamental role in shaping species distributions, driving niche differentiation, and structuring communities. Yet their influence on realized niches and patterns of coexistence remains poorly understood. In clownfishes, mutualism with sea anemones underpins their biogeography and ecological success, with ...
Alberto García Jiménez, Antoine Guisan, Olivier Broennimann, Théo Gaboriau, Nicolas Salamin   +4 more
wiley   +1 more source

Synthetic pelagic biomass size spectra of the tropical and subtropical Atlantic

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Synthetic normalized biomass size spectra (NBSS) comprising non‐synoptically sampled phytoplankton, meso‐ and macrozooplankton, and micronekton including mesopelagic fishes were explored to analyze pelagic community structure in seven regions of the tropical and the subtropical Atlantic representative of different water bodies (NE Brazil shelf,
Heino O. Fock, Henrike Andresen, Arnaud Bertrand, Gabriel Bittencourt Farias, Claire Carré, María Couret, Javier Díaz‐Pérez, Tim Dudeck, Mathilde Dugenne, Sabrina Duncan, Gabriela Guerra Araújo Abrantes Figueiredo, Thierry Frédou, Flávia Lucena‐Frédou, Xiomara F. G. Díaz, Dawit Yemane, Cristina González‐García, Rainer Kiko, José M. Landeira, Simone M. A. Lira, Florian Lüskow, Emilio Marañón, Pedro Augusto Mendes de Castro Melo, Sigrid Neumann‐Leitao, Leandro Nole Eduardo, Lars Stemmann, Ralf Schwamborn   +25 more
wiley   +1 more source

Copepod‐associated microbial biogeography in the epipelagic ocean

Limnology and Oceanography Letters
Abstract Zooplankton‐microbial interactions play crucial roles in epipelagic ecosystem functions. The distinct west‐to‐east gradients and complex circulation patterns in the Mediterranean Sea, combined with the ubiquity of pelagic copepods, provide an ideal model to study the ecological processes driving host‐associated microbial ...
Velasquez, Ximena, Ozer, Tal, Mazzocchi, Maria Grazia, Carlotti, François, Meron, Dalit, Pujo-Pay, Mireille, Conan, Pascal, de Madron, Xavier Durrieu, Guy‐haim, Tamar   +8 more
openaire   +2 more sources

The Deep‐Sea Preyscapes of Mammalian Top Predators

Environmental DNA, Volume 8, Issue 3, May–June 2026.
Deep‐sea predator foraging is shaped by prey richness, accessibility, and density. Using eDNA and acoustics, we mapped fish and cephalopod communities across inshore‐offshore gradients around the Azores in foraging habitats of three co‐occurring deep‐diving toothed whales.
Véronique Merten, Marie Guilpin, Julia M. Parker, Machiel Oudejans, Shannon M. Dolan, Simone Baumann‐Pickering, Elliott L. Hazen, Luis M. D. Barcelos, Miguel Fernandes Guerreiro, Filipe M. Porteiro, Sören Franzenburg, Till Bayer, Henk‐Jan Hoving, Fleur Visser   +13 more
wiley   +1 more source