Gerdhard L. Jessen

@uach.cl

Assistant Professor at the Faculty of Sciences
Universidad Austral de Chile

Gerdhard L. Jessen

EDUCATION

University of Bremen: Bremen, Bremen, DE. 2011-01-02 to 2015-06-01 | PhD (Dr. rer. nat.) (Max Planck Institute for Marine Microbiology)
University of Concepción: Concepción, Bío-Bío, CL. 2006-03-01 to 2010-08-01 | Master of Science, mention in Oceanography (Oceanography)
Catholic University of the Most Holy Conception: Concepción, Bio-Bio, CL. 2000-03-01 to 2005-03-01 | Marine Biologist (Sciences)

RESEARCH, TEACHING, or OTHER INTERESTS

Earth-Surface Processes, Microbiology, Oceanography, Environmental Science
1059

Scholar Citations

17

Scholar h-index

22

Scholar i10-index

RECENT SCHOLAR PUBLICATIONS

  • Volatile characteristics of Hikurangi Subduction Zone thermal fluids and gases
    PH Barry, DJ Byrne, EC Hughes, MB Stott, CA Werner, AM Marti, M Cave, ...
    Goldschmidt 2026 Conference , 2026
    2026
  • Spatial patterns of methane-derived lipid biomarkers across the Hikurangi Subduction Zone, New Zealand
    AM Marti, C Slaymark, MB Stott, DJ Byrne, EC Hughes, J Panehal, ...
    Goldschmidt 2026 Conference , 2026
    2026
  • Environmental drivers of microbial metal transporter diversity in geothermal systems
    F Migliaccio, D Corso, M Cascone, E Taccaliti, B De Pins, D Bastoni, ...
    EGU26 , 2026
    2026
  • Evidence for priming-enhanced microbial degradation of polycyclic aromatic hydrocarbons in marine sediments
    C Castillo-Ilabaca, GL Jessen, M Aranda, C Fernández, L Méjanelle, ...
    Marine Pollution Bulletin 224, 119163 , 2026
    2026
  • Euxinic conditions and altered biogeochemical cycles in a Patagonian fjord influenced by tectonic activity
    I Pérez-Santos, P Montero, MH Gutiérrez, GL Jessen, A Galán, L Farías, ...
    2026
  • Global carbon fixation in Earth's subsurface biosphere
    B de Pins, G Climent Gargallo, M Cascone, M Selci, F Migliaccio, ...
    bioRxiv, 2026.05. 06.723307 , 2026
    2026
  • The contribution of continental volcanic arcs to global weathering fluxes: Insights from the Southern Andes
    A Peña-Echeverría, D Tardani, P Louvat, GL Jessen, A Perez-Fodich
    Earth and Planetary Science Letters 671, 119640 , 2025
    2025
    Citations: 1
  • Urogenital microbiome, intracellular bacterial communities, and their contribution to urinary tract infections
    L Robino, N Navarro, N Canales-Huerta, MJ González, E Cruz, R Sauto, ...
    Microbiology Spectrum 13 (11), e01247-25 , 2025
    2025
    Citations: 3
  • Origins and fluxes of gas emissions from the Central Volcanic Zone of the Andes
    JM de Moor, PH Barry, A Rodríguez, F Aguilera, M Aguilera, C Gonzalez, ...
    Journal of Volcanology and Geothermal Research 466, 108382 , 2025
    2025
    Citations: 5
  • Tectonic setting shapes microbial biosynthetic potential across global geothermal environments
    ACP Silva, B de Pins, F Montemagno, F Migliaccio, M Cascone, D Bastoni, ...
    bioRxiv, 2025.09. 14.675129 , 2025
    2025
    Citations: 1
  • Environmental diversity, distribution, and evolution of microbial metal ion transport systems in global hydrothermal systems
    F Migliaccio, D Corso, M Cascone, D Bastoni, M Selci, G Gallo, ...
    Goldschmidt 2025 Conference , 2025
    2025
  • Carbon, nitrogen, and noble gas isotopes reveal deep volatile signatures in thermal springs in the Central Volcanic Zone (CVZ) of the Andes
    PH Barry, JM de Moor, MW Broadley, AM Seltzer, DV Bekaert, K Patil, ...
    Earth and Planetary Science Letters 651, 119169 , 2025
    2025
    Citations: 9
  • Multi-compartment impact of micropollutants and particularly antibiotics on bacterial communities using environmental DNA at river basin-level
    PA Inostroza, GL Jessen, F Li, X Zhang, W Brack, T Backhaus
    Environmental Pollution 366, 125487 , 2025
    2025
    Citations: 18
  • Origin and fate of methane in the Central American convergent margin
    M Selci, M Cascone, TJ Rogers, AV Brovarone, CJ Ramirez, P Beaudry, ...
    EarthArXiv , 2025
    2025
  • Tracing the orogenic sulfur cycle in the Andes using stable isotope composition of dissolved sulfate in thermal springs
    TA Grambling, DL Newell, KG Lloyd, CD Hiett, H Upin, PH Barry, ...
    Chemical Geology 669, 122365 , 2024
    2024
    Citations: 1
  • PAH contamination in coastal surface sediments and associated bacterial communities
    C Castillo-Ilabaca, MH Gutiérrez, M Aranda, K Henríquez-Aedo, A Pereira, ...
    Scientific Reports 14 (1), 29053 , 2024
    2024
    Citations: 14
  • Subsurface microbial community structure shifts along the geological features of the Central American Volcanic Arc
    M Basili, TJ Rogers, M Nakagawa, M Yücel, JM de Moor, PH Barry, ...
    PLoS One 19 (11), e0308756 , 2024
    2024
    Citations: 8
  • Targeting deeply-sourced seeps along the Central Volcanic Zone
    D Bastoni, M Aguilera, F Aguilera, JM Blamey, J Buongiorno, A Chiodi, ...
    Open Research Europe 4, 226 , 2024
    2024
  • Ultrahigh-precision noble gas isotope analyses reveal pervasive subsurface fractionation in hydrothermal systems (vol 9, eadg2566, 2023)
    GL Jessen, JM Blamey
    SCIENCE ADVANCES 10 (8) , 2024
    2024
  • Isotopic ratios of sulfur and oxygen from sulfate in Andean thermal springs
    T Grambling, D Newell, K Lloyd, C Hiett, H Upin, P Barry, D Giovannelli, ...
    Interdisciplinary Earth Data Alliance (IEDA) dataset, 26 , 2024
    2024

MOST CITED SCHOLAR PUBLICATIONS

  • Hypoxia causes preservation of labile organic matter and changes seafloor microbial community composition (Black Sea)
    GL Jessen, A Lichtschlag, A Ramette, S Pantoja, PE Rossel, CJ Schubert, ...
    Science advances 3 (2), e1601897 , 2017
    2017
    Citations: 238
  • A single-cell sequencing approach to the classification of large, vacuolated sulfur bacteria
    V Salman, R Amann, AC Girnth, L Polerecky, JV Bailey, S Høgslund, ...
    Systematic and applied microbiology 34 (4), 243-259 , 2011
    2011
    Citations: 128
  • Putative mixotrophic nitrifying-denitrifying gammaproteobacteria implicated in nitrogen cycling within the ammonia/oxygen transition zone of an oil sands pit lake
    JF Mori, LX Chen, GL Jessen, SB Rudderham, JM McBeth, MBJ Lindsay, ...
    Frontiers in microbiology 10, 2435 , 2019
    2019
    Citations: 79
  • Effect of tectonic processes on biosphere–geosphere feedbacks across a convergent margin
    KM Fullerton, MO Schrenk, M Yücel, E Manini, M Basili, TJ Rogers, ...
    Nature Geoscience 14 (5), 301-306 , 2021
    2021
    Citations: 78
  • The Potential Role of Halothiobacillus spp. in Sulfur Oxidation and Acid Generation in Circum-Neutral Mine Tailings Reservoirs
    K Whaley-Martin, GL Jessen, TC Nelson, JF Mori, S Apte, C Jarolimek, ...
    Frontiers in microbiology 10, 297 , 2019
    2019
    Citations: 52
  • The helium and carbon isotope characteristics of the Andean Convergent Margin
    PH Barry, JM De Moor, A Chiodi, F Aguilera, MR Hudak, DV Bekaert, ...
    Frontiers in Earth Science 10, 897267 , 2022
    2022
    Citations: 50
  • Chemolithoautotroph distributions across the subsurface of a convergent margin
    TJ Rogers, J Buongiorno, GL Jessen, MO Schrenk, JA Fordyce, ...
    The ISME Journal 17 (1), 140-150 , 2023
    2023
    Citations: 47
  • Effects of fluctuating hypoxia on benthic oxygen consumption in the Black Sea (Crimean shelf)
    A Lichtschlag, D Donis, F Janssen, GL Jessen, M Holtappels, ...
    Biogeosciences 12 (16), 5075-5092 , 2015
    2015
    Citations: 41
  • Methane in shallow cold seeps at Mocha Island off central Chile
    GL Jessen, S Pantoja, MA Gutierrez, RA Quinones, RR Gonzalez, ...
    Continental Shelf Research 31 (6), 574-581 , 2011
    2011
    Citations: 39
  • Sampling across large-scale geological gradients to study geosphere–biosphere interactions
    D Giovannelli, PH Barry, JM De Moor, GL Jessen, MO Schrenk, KG Lloyd
    Frontiers in Microbiology 13, 998133 , 2022
    2022
    Citations: 30
  • Distribution and composition of thiotrophic mats in the hypoxic zone of the Black Sea (150–170 m water depth, Crimea margin)
    GL Jessen, A Lichtschlag, U Struck, A Boetius
    Frontiers in Microbiology 7, 1011 , 2016
    2016
    Citations: 25
  • Aerobic and anaerobic metabolism of Paraprionospio pinnata (Polychaeta: Spionidae) in central Chile
    E Quiroga, RA Quiñones, RR González, VA Gallardo, G Jessen
    Journal of the Marine Biological Association of the United Kingdom 87 (2 … , 2007
    2007
    Citations: 25
  • Chemosynthetic trophic support for the benthic community at an intertidal cold seep site at Mocha Island off central Chile
    J Sellanes, G Zapata-Hernández, S Pantoja, GL Jessen
    Estuarine, Coastal and Shelf Science 95 (4), 431-439 , 2011
    2011
    Citations: 24
  • Ultrahigh-precision noble gas isotope analyses reveal pervasive subsurface fractionation in hydrothermal systems
    DV Bekaert, PH Barry, MW Broadley, DJ Byrne, B Marty, CJ Ramírez, ...
    Science advances 9 (15), eadg2566 , 2023
    2023
    Citations: 19
  • Multi-compartment impact of micropollutants and particularly antibiotics on bacterial communities using environmental DNA at river basin-level
    PA Inostroza, GL Jessen, F Li, X Zhang, W Brack, T Backhaus
    Environmental Pollution 366, 125487 , 2025
    2025
    Citations: 18
  • Complex organic matter degradation by secondary consumers in chemolithoautotrophy-based subsurface geothermal ecosystems
    R Paul, TJ Rogers, KM Fullerton, M Selci, M Cascone, MH Stokes, ...
    PLoS One 18 (8), e0281277 , 2023
    2023
    Citations: 17
  • Wide distribution of phage that infect freshwater SAR11 bacteria
    LX Chen, Y Zhao, KD McMahon, JF Mori, GL Jessen, TC Nelson, ...
    Msystems 4 (5), 10.1128/msystems. 00410-19 , 2019
    2019
    Citations: 17
  • Hypoxia causes preservation of labile organic matter and changes seafloor microbial community composition (Black Sea), Sci. Adv., 3, e1601897
    GL Jessen, A Lichtschlag, A Ramette, S Pantoja, PE Rossel, CJ Schubert, ...
    2017
    Citations: 17
  • Isotopic and chemical assessment of the dynamics of methane sources and microbial cycling during early development of an oil sands pit lake
    GF Slater, CA Goad, MBJ Lindsay, KG Mumford, TE Colenbrander Nelson, ...
    Microorganisms 9 (12), 2509 , 2021
    2021
    Citations: 15
  • Microbial succession signals the initiation of acidification in mining wastewaters
    D Camacho, GL Jessen, JF Mori, SC Apte, CV Jarolimek, LA Warren
    Mine Water and the Environment 39 (4), 669-683 , 2020
    2020
    Citations: 15