Marine Geomicrobiologist · Biogeochemist · Field Scientist

Dr. Maya S. Dodhia

Understanding what lives on plastic in the ocean — and what that means for the planet.

I study the intersection of marine pollution, microbial ecology, and geochemistry — how plastic debris in coastal environments becomes a habitat, a metal reservoir, and a site of active biogeochemical cycling. Looking to bring this work into environmental science, sustainability, and the circular economy.

Dr. Maya Dodhia collecting water samples, Tanzania 2022

Msimbazi River, Dar es-Salaam, Tanzania · 2022

Background
A geologist who followed microbes into the sea
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Skills & Experience
Technical, professional & beyond the lab
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Research & Publications
Plastisphere science & peer-reviewed work
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Conferences & Collabs
8 international presentations & global network
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Industry Fit
From ocean science to applied impact — where I fit in industry
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Art
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Skills Overview

Technical
Field & Analytical
Marine Field Sampling Sediment Coring Microplastic Extraction ATR-FTIR SEM-EDS & AQM CLSM ICP-MS / ICP-OES Geochemical Digestion
Molecular & Computational
DNA Extraction 16S rRNA Sequencing Metagenomic Analysis Functional Gene Analysis DADA2 · SILVA R Python BASH Scripting Bioinformatics Pipelines
Professional
Communication & Leadership
Scientific Writing Conference Presenting Cross-disciplinary Communication Science Outreach NGO Co-founding Stakeholder Management Project Management
Teaching & Visualisation
Teaching (MSc & BSc) Student Supervision Data Visualisation Adobe Illustrator Inkscape GIMP
Languages
English — Native Danish — B1 Kiswahili — Basic Gujarati — Limited Spanish — Basic

Get in Touch

Actively looking for roles in marine environmental science, sustainability, and the circular economy. Based in Copenhagen, open to relocation across Europe, to Singapore, or to Sydney.

Email

maya.dodhia@gmail.com · msd@ign.ku.dk

Phone

+45 93 95 80 96

LinkedIn

linkedin.com/in/maya-dodhia

ORCID

0000-0001-5227-7026

KU Research Profile

POSTH Lab · University of Copenhagen

Background

A geologist who followed
microbes into the sea

My scientific path began with the solid Earth — rocks, minerals, deep time — studying Earth Science at Imperial College London, graduating as an Associate of the Royal School of Mines, professionally accredited by the Geological Society of London.

An MSc in Climate Change at the University of Copenhagen shifted my focus toward the present and urgent. Before my PhD I worked as a research assistant on nanocatalytic microbial methanation in abandoned North Sea oil infrastructure — an early encounter with how microbes transform the materials we leave behind.

My PhD at Copenhagen's POSTH Lab under Prof. Nicole Posth brought me to the coastal ocean and plastic pollution. I studied how plastic debris in the water column and sediment becomes colonised by microbial communities — the plastisphere — and how those communities interact with metals and minerals across redox environments. This included fieldwork along the Tanzanian coastline, extending plastisphere science into the understudied Western Indian Ocean.

Most recently I completed an internship at the Danish Technological Institute in the Bioplastics and Biodegradability section, bridging academic research with applied industrial science.

I work across disciplines by necessity: field sampling, geochemical analysis, SEM-EDS, microbial sequencing, bioinformatics. The ocean's problems don't fit clean boxes, and neither do I.

Intern · May–Jun 2025

Bioplastics & Biodegradability

Danish Technological Institute

RA · May–Aug 2024

Research Assistant

University of Copenhagen (GLOBE & IGN)

PhD · 2021–2024

Geomicrobiology & Biogeochemistry

University of Copenhagen · POSTH Lab

RA · Sep–Nov 2020

Research Assistant

UCPH, DTU & DHRTC

MSc · 2018–2020

Climate Change

Niels Bohr Institute, Copenhagen

BSc · 2014–2017

Earth Science

Imperial College London · ARSM

PhD defence, University of Copenhagen, September 2024

PhD Defence · University of Copenhagen · September 2024

Capabilities

Technical & Professional Skills

Field & Analytical

  • Marine & estuarine field sampling
  • Sediment core collection
  • Microplastic extraction & ID
  • ATR-FTIR / Raman spectroscopy
  • SEM-EDS & AQM
  • CLSM & fluorescence microscopy
  • Geochemical digestion & ICP-MS/OES

Molecular & Computational

  • DNA extraction & QC
  • 16S rRNA amplicon sequencing
  • Metagenomic analysis
  • Functional gene analysis
  • DADA2 · SILVA · Bioinformatics pipelines
  • R · Python · BASH scripting
  • Adobe Illustrator · Inkscape · GIMP

Professional

  • Scientific writing & peer review
  • Cross-disciplinary communication
  • Conference presenting (oral & poster)
  • Teaching & student supervision
  • Project & stakeholder management
  • NGO co-founding & coordination
  • Science communication & outreach

Beyond the Lab

Languages

English — Native Danish — B1 Gujarati — Limited Kiswahili — Basic Spanish — Basic

Field Locations

Tanzania (2022) Aarhus (2023) Faxe Ladeplads & Isefjord, DK (2022) Svanemøllenhavn, DK (2020) Vietnam (2019) Pyrenees, ES (2016) Almería, ES (2015)

Mountaineering & Expeditions

  • Everest expedition (2012) — ~50 days, international team
  • Island Peak 6,139m & Lobuche East 6,145m — summited
  • Ramdung 5,930m & Yalung Ri 5,630m — Himalayas
  • Mt. Kenya 4,985m — summited
  • New alpine route set, Chamonix region
  • Walk with Rangers — 275km Tanzania–Nairobi, elephant conservation

Sport & Other

  • PADI Open Water diving certification
  • IC London Women's Squash & RSM Women's Hockey
  • 1st XI Women's Hockey goalkeeper (2012–2014)
  • Acrylic painting — big cats

Leadership & Engagement

2021–2023
PhD Representative, Geology — Early Careers Association (ECA)
University of Copenhagen
2018–2019
Co-Founder & Events Coordinator — People of 2050 (NGO)
Environmental NGO, Copenhagen
2015–2017
Vice President — East African Society, Imperial College London
Student leadership
2017–2018
Digital Volunteer — Zooniverse & Natural History Museum, London
Citizen science

Teaching & Supervision

Jun 2022 & 2023
Marine Geoscience (MSc)
University of Copenhagen, DK
2021/22 & 22/23
Lab Methods in the Geosciences (BSc)
University of Copenhagen, DK
May–Dec 2022
MSc Student Supervision (Erasmus, Univ. Torino & UCPH)
The influence of salinity and fungi on degradation of conventional vs bioplastics
Sep 2022–Jan 2023
BSc Student Supervision (UCPH)
UV degradation of plastic — graduated Jan 2023, mark 12/12

Where I Can Contribute

From ocean science
to applied impact

Ocean & Marine Environmental Science

Environmental monitoring, pollution assessment, and marine ecosystem research — from temperate European harbours to the East African coast.

Potential position titles

Environmental Scientist Marine Researcher Field Scientist Monitoring Specialist

Circular Economy & Materials Innovation

Plastic degradation, polymer-microbe interactions, and end-of-life materials science — for organisations designing circular systems, biodegradable alternatives, and plastic recovery technologies.

Potential position titles

Research Scientist Materials Analyst Sustainability Scientist Innovation Researcher

Environmental Consulting & Impact Assessment

Scientific expertise in marine pollution, biogeochemical cycling, and microbial ecology for environmental impact assessments, regulatory submissions, and remediation strategy.

Potential position titles

Environmental Consultant EIA Specialist Technical Advisor Scientific Reviewer

Environmental Biotech & Applied Research

Bridging geomicrobiology and biotechnology — applying knowledge of natural microbial metal cycling and plastic-associated communities to bioremediation and novel bioprocess design.

Potential position titles

Research Scientist Bioremediation Specialist Applied Researcher Lab Scientist

Research Focus

Plastisphere science at the
frontier of marine pollution

Why this matters for industry

Understanding what microbes do on plastic — and what plastic does to marine geochemistry — is foundational to designing better materials, improving plastic recovery, and assessing ecological risk.


Publications & Contributions

Peer-reviewed work

Marine Pollution Bulletin · 2025

Automated quantitative mineralogy and plastics — A new view of the plastic surface in aquatic environments

Dodhia M.S., Fruergaard M., Shilla D., Shilla D.J., Posth N.R., Keulen N.

Proof of concept for AQM to illuminate and analyse the metal and mineral component of the plastisphere on plastics from temperate and tropical aquatic localities.

Frontiers in Marine Science · 2023

Microbe-mineral interactions in the Plastisphere: Coastal biogeochemistry and consequences for degradation of plastics

Dodhia M.S., Rogers K.L., Fernández-Juárez V., Carreres-Calabuig J.A., Löscher C.R., Tisserand A.A., Keulen N., Riemann L., Shashoua Y., Posth N.R.

Microbial and mineral association with PE and PS over 12 months in a temperate coastal harbour across changing redox conditions.

Science of the Total Environment · 2023

Settling of buoyant microplastic in estuaries: The importance of flocculation

Laursen S.N., Fruergaard M., Dodhia M.S., Posth N.R., Rasmussen M.B., Larsen M.N., Shilla D., Shilla D.J., Kilawe J.J., Kizenga H.J., Andersen T.J.

Ex situ settling experiments in the Msimbazi River and Estuary, Tanzania, demonstrating microplastic flocculation 5–21× faster in estuarine than freshwater.

Sustainability · MDPI · 2023

Scenarios for Reducing Greenhouse Gas Emissions from Food Procurement for Public School Kitchens in Copenhagen

Prag A.A., Abrahams J.B., Daniele F., Dodhia M.S., Feng C., Hahn K., Kristiansen S., Leitner A.M. et al.

Dietary scenarios for three public schools in Copenhagen showing GHG reductions of 32–64%.

Book Chapter · Plastisphere: The Ecosystem of Plastics · Routledge, 2025

Beyond Biofilm — The Role of Biominerals and Metals in the Plastisphere

Peydaei A., Dodhia M.S., Schmidt D., Hendiani S., Neu T., Sand K.K., Posth N.R.

Review of minerals and metals associated with the plastisphere and their significance for biogeochemical cycling, food web uptake, and human health.


Other Scholarly Work

Full record on ORCID →

Conferences & Professional Engagement

Presenting research,
building networks

Jul 2025
Beyond biofilm: the role of metals and minerals in plastic's environmental fate
Oral PresentationGoldschmidt, Prague, Czech Republic
Jul 2023
Using Automated Quantitative Mineralogy (AQM) to Understand Microbe-Mineral Interactions in the Plastisphere
PosterGoldschmidt, Lyon, France
Jun 2023
Estuarine plastics: metals and microbes on plastics from an East African estuarine transect
Oral PresentationASLO, Mallorca, Spain
Feb 2023
Fungal involvement in (Bio)plastics degradation in the marine environment
Co-author · PosterConference of Young Botanists
Dec 2022
Microbes and minerals in the marine Plastisphere
Oral PresentationIGN Departmental PhD & Postdoc Day, Copenhagen
Nov 2022
Trapping of floating MP in estuaries, the importance of flocculation
Proceedings · doi: 10.5281/zenodo.7216836Micro 2022, Online
Sep 2022
Microbe-mineral associations in the Plastisphere: Evidence for changes across coastal redox zones
Poster7th International Marine Debris Conference, Busan, South Korea
Dec 2021
Marine Plastic Hotspots
Oral PresentationIGN Departmental PhD & Postdoc Day, Copenhagen

Collaborating Researchers & Institutions

UCPH-IGN, Denmark

Nicole R. Posth, Mikkel Fruergaard, Simon N. Laursen, Thorbjørn J. Andersen, Marianne N. Larsen, Kelsey L. Rogers, Joan A. Carreres-Calabuig

GEUS & NatMus, Denmark

Nynke Keulen (GEUS) · Yvonne Shashoua (National Museum of Denmark)

SDU / NordCEE, Denmark

Carolin Löscher · Victor Fernández-Juárez · Lasse Riemann (UCPH Marine Biology)

Tanzania

Dativa Shilla (DUCE) · Daniel Shilla · Hellen J. Kizenga (UDSM)

UFZ & Univ. Torino

Thomas Neu (UFZ Leipzig) · Giovanna Cristina Varese (Univ. Torino)

University of Auckland, NZ

Gavin Lear · Kim Handley

Outside the Lab

White acrylic on black —
painting the animals I want to protect

I paint in acrylics on black paper — almost always big cats. There is something about working in white on black that feels honest: you are pulling light out of darkness, which is not so different from fieldwork. I am drawn to apex predators the same way I am drawn to the ocean — they hold ecosystems together, and we are losing them.

Hiraeth, lion resting
Tiger profile
Leopard portrait
Tiger
Cheetah