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Environmental Sciences
Chile
2026

D-Index & Metrics

Environmental Sciences

D-Index
61
Citations
15769
World Ranking
2737
National Ranking
2

Research.com Recognitions

  • 2026 - Research.com Environmental Sciences in Chile Leader Award
  • 2025 - Research.com Environmental Sciences in Chile Leader Award
  • 2023 - Research.com Environmental Sciences in Chile Leader Award
  • 2022 - Research.com Environmental Sciences in Chile Leader Award

Overview

Osvaldo Ulloa is affiliated with the University of Concepción in Chile. Their research focuses primarily on environmental science and earth and planetary sciences, encompassing 38 and 29 publications respectively.

Their work explores several subfields, including ecology, oceanography, molecular biology, environmental chemistry, and pollution. Osvaldo Ulloa's research includes topics such as microbial community ecology and physiology, marine and coastal ecosystems, marine biology and ecology research, genomics and phylogenetic studies, protist diversity and phylogeny, isotope analysis in ecology, and bacteriophages and microbial interactions.

They have published multiple papers, some of which have attracted notable citations. Selected recent works include:

  • "Potential virus-mediated nitrogen cycling in oxygen-depleted oceanic waters" (2020, The ISME Journal)
  • "The cyanobacterium Prochlorococcus has divergent light-harvesting antennae and may have evolved in a low-oxygen ocean" (2021, Proceedings of the National Academy of Sciences)
  • "Autotrophic carbon fixation pathways along the redox gradient in oxygen-depleted oceanic waters" (2020, Environmental Microbiology Reports)
  • "Do phytoplankton require oxygen to survive? A hypothesis and model synthesis from oxygen minimum zones" (2023, Limnology and Oceanography)
  • "Genome-resolved viral ecology in a marine oxygen minimum zone" (2020, Environmental Microbiology)

Frequent co-authors include Rubén Escribano, Carolina E. González, Montserrat Aldunate, Carlos Henríquez-Castillo, and Salvador Ramírez-Flandes, indicating collaboration across several related research areas.

Their publications are commonly found in venues such as Frontiers in Marine Science, Limnology and Oceanography, bioRxiv (Cold Spring Harbor Laboratory), Scientific Data, and Zenodo (CERN European Organization for Nuclear Research).

Best Publications

  • Processes and patterns of oceanic nutrient limitation

    C. M. Moore;M. M. Mills;K. R. Arrigo;I. Berman-Frank

  • Impacts of atmospheric anthropogenic nitrogen on the open ocean.

    R. A. Duce;J. LaRoche;K. Altieri;K. R. Arrigo

  • A Cryptic Sulfur Cycle in Oxygen-Minimum–Zone Waters off the Chilean Coast

    Donald Eugene Canfield;F.J. Stewart;Bo Thamdrup;Loreto De Brabandere

  • Concentration and transport of nitrate by the mat-forming sulphur bacterium Thioploca

    H. Fossing;V. A. Gallardo;B. B. Jørgensen;M. Hüttel

  • Natural and human-induced hypoxia and consequences for coastal areas: synthesis and future development

    J. Zhang;D. Gilbert;A. Gooday;L. Levin

  • Microbial oceanography of anoxic oxygen minimum zones

    Osvaldo Ulloa;Donald E. Canfield;Edward F. DeLong;Ricardo M. Letelier

  • Global phylogeography of marine Synechococcus and Prochlorococcus reveals a distinct partitioning of lineages among oceanic biomes.

    Katrin Zwirglmaier;Ludwig Jardillier;Martin Ostrowski;Sophie Mazard

  • Primary production and community respiration in the Humboldt Current System off Chile and associated oceanic areas

    Giovanni Daneri;Victor Dellarossa;Renato Quiñones;Barbara Jacob

  • Microbial metatranscriptomics in a permanent marine oxygen minimum zone

    Frank J. Stewart;Osvaldo Ulloa;Edward F. DeLong

  • Anaerobic ammonium oxidation in the oxygen-deficient waters off northern Chile

    Bo Thamdrup;Tage Dalsgaard;Marlene Mark Jensen;Osvaldo Ulloa

  • Determination of ultra‐low oxygen concentrations in oxygen minimum zones by the STOX sensor

    Niels Peter Revsbech;Lars Hauer Larsen;Jens Gundersen;Tage Dalsgaard

  • Oxygen at Nanomolar Levels Reversibly Suppresses Process Rates and Gene Expression in Anammox and Denitrification in the Oxygen Minimum Zone off Northern Chile

    Tage Dalsgaard;Frank J. Stewart;Bo Thamdrup;Loreto De Brabandere

  • Picophytoplankton biomass distribution in the global ocean

    E. T. Buitenhuis;W. K. W. Li;Daniel Vaulot;M. W. Lomas

  • Ammonium and nitrite oxidation at nanomolar oxygen concentrations in oxygen minimum zone waters

    Laura A. Bristow;Tage Dalsgaard;Laura Tiano;Daniel B. Mills

  • Photoacclimation of Prochlorococcus sp. (Prochlorophyta) Strains Isolated from the North Atlantic and the Mediterranean Sea.

    F. Partensky;N. Hoepffner;W. K. W. Li;O. Ulloa

  • Bacterial diversity in the oxygen minimum zone of the eastern tropical South Pacific.

    Heike Stevens;Osvaldo Ulloa

  • Effect of the particle-size distribution on the backscattering ratio in seawater.

    Osvaldo Ulloa;Shubha Sathyendranath;Trevor Platt

  • Nitrogen fixation in denitrified marine waters.

    Camila Fernandez;Camila Fernandez;Laura Farías;Osvaldo Ulloa

  • Oceanographic Basis of the Global Surface Distribution of Prochlorococcus Ecotypes

    Heather A. Bouman;Osvaldo Ulloa;David J. Scanlan;Katrin Zwirglmaier

  • Biological and chemical consequences of the 1997-1998 El nino in the Chilean coastal upwelling system: a synthesis

    Rubén Escribano;Giovani Daneri;Giovani Daneri;Laura Farías;Víctor A. Gallardo;Víctor A. Gallardo

Frequent Co-Authors

Shubha Sathyendranath
Shubha Sathyendranath Plymouth Marine Laboratory
Bo Thamdrup
Bo Thamdrup University of Southern Denmark
Trevor Platt
Trevor Platt Plymouth Marine Laboratory
Donald E. Canfield
Donald E. Canfield University of Southern Denmark
Tage Dalsgaard
Tage Dalsgaard Aarhus University
Niels Peter Revsbech
Niels Peter Revsbech Aarhus University
Daniel Vaulot
Daniel Vaulot Station Biologique De Roscoff
Edward F. DeLong
Edward F. DeLong University of Hawaii at Manoa
Dierk Hebbeln
Dierk Hebbeln University of Bremen
Ruben Escribano
Ruben Escribano University of Concepción

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