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João Frias concluiu o Doutoramento em Ciências Ambientais pela Nova School of Science and Technology em 2015. Trabalha na área do lixo marinho e microplásticos e literacia do oceano desde 2008. É investigador a tempo inteiro no Marine and Freshwater Research Centre da Atlantic Technological University na Irlanda. Para mais detalhes por favor visite: www.joaofrias.com
Identification

Personal identification

Full name
Joao Frias

Citation names

  • Frias, João Pedro Garcez Luís de

Author identifiers

Ciência ID
D91C-FE0F-0683
ORCID iD
0000-0001-9943-1035

Email addresses

  • joao.frias@atu.ie (Professional)

Knowledge fields

  • Engineering and Technology - Environmental Engineering
  • Natural sciences - Earth and Environmental Sciences
  • Natural sciences - Other Natural Sciences

Languages

Language Speaking Reading Writing Listening Peer-review
Portuguese Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
Spanish; Castilian Advanced (C1) Advanced (C1) Intermediate (B1) Advanced (C1)
Japanese Beginner (A1) Beginner (A1) Beginner (A1) Beginner (A1)
English Advanced (C1) Advanced (C1) Intermediate (B1) Advanced (C1)
French Beginner (A1) Intermediate (B1) Beginner (A1) Beginner (A1)
German Beginner (A1) Beginner (A1) Beginner (A1) Beginner (A1)
Education
Degree Classification
2011 - 2015
Concluded
 Doutoramento em Ambiente (Doutoramento)
Universidade Nova de Lisboa, Portugal
"Effects of the presence of microplastic particles in Portuguese coastal waters and marine mussels" (THESIS/DISSERTATION)
 unanimidade
2015
Concluded
 Programa Doutoral em Ambiente (Doutoramento)
Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia, Portugal
"Effects of the presence of microplastic particles in Portuguese coastal waters and marine mussels" (THESIS/DISSERTATION)
 16 (dezasseis) /20 (vinte) - Aprovado por unanimid
2002 - 2010
Concluded
 Engenharia do Ambiente (Mestrado integrado)
Major in Engenharia Ecológica
Universidade Nova de Lisboa, Portugal
 13
2010
Concluded
 Licenciatura em Engenharia do Ambiente (Licenciatura)
Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia, Portugal
" n/a" (THESIS/DISSERTATION)
 13 (treze) / 20 (vinte)
2010
Concluded
 Mestrado Integrado em Engenharia do Ambiente (Mestrado)
Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia, Portugal
"Microplásticos: o "presente" envenenado" (THESIS/DISSERTATION)
 15 (quinze) / 20 (vinte)
Affiliation

Science

Category
Host institution 		Employer
2017/03 - Current Principal Investigator (Research) Atlantic Technological University - Galway City, Ireland
2015/10 - 2016/12 Research Assistant (Research) MARE UAçores, Portugal
2010/01 - 2015/09 Researcher (Research) Universidade Nova de Lisboa, Portugal
Projects

Grant

Designation Funders
2011/09 - 2015/04 Effects of the presence of microplastic particles in portuguese coastal waters and marine mussels
SFRH/BD/7422/2010
 Universidade de Coimbra
2010/08 - 2014/02 Microplastics and persistent pollutants - a double threat to marine life (POIZON)
Provided by PTCRIS: 102677
 Governo da República Portuguesa Ministério da Ciência Tecnologia e Ensino Superior

Contract

Designation Funders
2022 - 2026 Waves of Change
Co-Principal Investigator (Co-PI)
Marine Institute
Ongoing
2023 - 2024 Galway Bay is Calling
Researcher
Creative Ireland
Concluded
2020 - 2023 MicroplastiX
Researcher
Atlantic Technological University - Galway City, Ireland
 JPI Oceans
Concluded
2018/06 - 2020/05 Managing for microplastics: a baseline to inform policy stakeholders (IMP.act)
CLNE/2018/524
 Irish Research Council
2015 - 2017 Azorlit
Master Student Fellow
Universidade dos Açores, Portugal
 Governo dos Açores
Concluded

Other

Designation Funders
2025 - 2025 Waves of Change - Promoting Ocean Literacy at Sea
Principal investigator
Atlantic Technological University - Galway City, Ireland
 Marine Institute
Concluded
Outputs

Publications

Book chapter
  1. João P. G. L. Frias. "Sorption of Potentially Toxic Elements to Microplastics". 625-640. Springer International Publishing, 2022.
    10.1007/978-3-030-39041-9_16
  2. João P. G. L. Frias; Roisin Nash. "Methodologies to Assess Microplastics in the Anthropocene". 21-40. CRC Press, 2022.
    10.1201/9781003109730-2
  3. Filipa Bessa; Pablo Barría; João M. Neto; João P. G. L. Frias; Vanessa Otero; Paula Sobral; João Carlos Marques. "Microplastics in Juvenile Commercial Fish from an Estuarine Environment". 131-135. Springer Nature, 2018.
    10.1007/978-3-319-71279-6_18
  4. João P. G. L. Frias. "Marine Pollution by Microplastics: Environmental Contamination, Biological Effects, and Research Challenges". 329-351. 2018.
Conference paper
  1. João P. G. L. Frias. "Lanzarote Declaration, MICRO 2022 for the UN Treaty on Plastic Pollution.". 2022.
    10.5281/ZENODO.7359316
  2. Frias, João Pedro Garcez Luís de; Carriço, R.,; Rodriguez, Y.,; Verónica, N.,; Bried, J.; Franeker, J.,; Pham, C.,. "Monitoring plastic ingestion in selected Azorean marine fauna: Azorlit preliminary data". Paper presented in MICRO 2016: Fate and impact of microplastics in marine ecosystems from the coastline to the open sea, Lanzarote, Spain, 2016.
    Published
  3. Frias, João Pedro Garcez Luís de; Carriço, R.,; Rodriguez, Y.,; Rios, N.,; Garcia, S.,; Pham, C.,. "Marine litter accumulation in the Azorean archipelago: Azorlit preliminary data.". Paper presented in MICRO2016, Lanzarote, 2016.
    Published
  4. Carriço, R.,; Frias, JPGL; Rodriguez, Y.,; Rios, N.,; Cruz, M., J.,; Dâmaso, C.,; Pham, C.,. "Tackling marine litter: Awareness and outreach in the Azores.". Paper presented in MICRO2016, Lanzarote, 2016.
    Published
  5. Frias, JPGL; Sobral, P.; Antunes, J.C.. "Microplastics – a never-ending story". Paper presented in CIESM 2014, Portland, Oregon, 2014.
    Published
  6. Frias, João Pedro Garcez Luís de; Sobral, P.. "Contaminação do Meio Marinho Projeto POIZON". Paper presented in Lixo Marinho - um problema global com expressão local, Alcobaça, 2014.
    Published
  7. Frias, João Pedro Garcez Luís de; Sobral, P.. "Biomarker effects of the ingestion of different concentrations of microplastic particles by Mytilus galloprovincialis (Linnaeus, 1758).". Paper presented in 2IOCUN 2014, Barcelona, 2014.
    Published
  8. Frias, João Pedro Garcez Luís de. "Plastic pollution: Water we doing". Paper presented in TEDxFCTUNL, Monte de Caparica, 2013.
    Published
  9. Frias, João Pedro Garcez Luís de; Sobral, P.; Antunes, J.C.; Mizukawa, Kaoruko; Geok, Yeo Bee; Ito, Maki; Hosoda, Junki; Miguez, Carlos. "Distribution of Persistent Bioaccumulative and Toxic Chemicals in Plastic Pellets in Portugal - a collaboration with the International Pellet Watch". Paper presented in INTERNATIONAL COASTAL SYMPOSIUM, Plymouth, 2013.
    Published
  10. Frias, João Pedro Garcez Luís de; Sobral, P.. "Plastics vs. plankton - a struggle with no end in sight". Paper presented in Estuarine & Coastal Sciences Association ECSA50, Veneza, 2012.
    Published
  11. Frias, João Pedro Garcez Luís de; Sobral, P.. "Temporal Analysis of microplastics concentrations in plankton samples". Paper presented in 12th European Ecological Federation (EEF) congress, Ávila, 2011.
    Published
  12. Frias, João Pedro Garcez Luís de; Sobral, P.. "Organic pollutants in microplastics from two beaches of the Portuguese Coast". Paper presented in 5th International Marine Debris Conference, Honolulu, 2011.
    Published
  13. Frias, João Pedro Garcez Luís de; Sobral, P.. "Organic pollutants in microplastics from two beaches of the Portuguese coast". Paper presented in Estuarine & Coastal Sciences Association ECSA47, Figueira da Foz, 2010.
    Published
  14. Frias, João Pedro Garcez Luís de; Sobral, P.. "GESAMP Internacional workshop". Paper presented in GESAMP Internacional workshop, Paris, 2010.
    Published
Journal article
  1. Clara Rodrigues; Yasmina Rodríguez; João P. G. L. Frias; Rita Carriço; Paula Sobral; Joana Antunes; Emily M. Duncan; Christopher K. Pham. "Microplastics in beach sediments of the Azores archipelago, NE Atlantic". Marine Pollution Bulletin 201 (2024): https://pure.atu.ie/en/publications/40400b7b-246e-4a8a-b764-4ca9debd3820.
    10.1016/j.marpolbul.2024.116243
  2. Ana Luzia Lacerda; João Frias; Maria Luiza Pedrotti. "Tardigrades in the marine plastisphere: New hitchhikers surfing plastics". Marine Pollution Bulletin (2024): http://dx.doi.org/10.1016/j.marpolbul.2024.116071.
    10.1016/j.marpolbul.2024.116071
  3. João Frias; Carolin Müller; Tonia Astrid Capuano. "Policy brief - Plastic pollution and the plastisphere: findings and recommendations". Zenodo (2024): https://zenodo.org/doi/10.5281/zenodo.10560911.
    10.5281/ZENODO.10560911
  4. Frias, Joao; Joyce, Haleigh; Brozzetti, Loann; Pagter, Elena; Svonja, Mateja; Kavangh, Fiona; Nash, Roisin. "Spatial monitoring of microplastics in environmental matrices from Galway Bay, Ireland". Marine Pollution Bulletin (2024): https://publons.com/wos-op/publon/67745236/.
    10.1016/J.MARPOLBUL.2024.116153
  5. Rodriguez, Yasmina; Rodriguez, Airam; van Loon, Willem M. G. M.; Pereira, Joao M.; Frias, Joao; Duncan, Emily M.; Garcia, Sofia; et al. "Cory's shearwater as a key bioindicator for monitoring floating plastics". Environment International (2024): https://publons.com/wos-op/publon/65014457/.
    10.1016/J.ENVINT.2024.108595
  6. Lenoble, Veronique; Cindric, Ana -Marija; Briand, Jean-Francois; Pedrotti, Maria Luiza; Lacerda, Ana Luzia; Muniategui-Lorenzo, Soledad; Fernandez-Gonzalez, Veronica; et al. "Bioaccumulation of trace metals in the plastisphere: Awareness of environmental risk from a European perspective". Environmental Pollution (2024): https://publons.com/wos-op/publon/67673930/.
    10.1016/J.ENVPOL.2024.123808
  7. Frias, Joao; Joyce, Haleigh; Brozzetti, Loann; Pagter, Elena; Svonja, Mateja; Kavanagh, Fiona; Nash, Roisin. "Spatial monitoring of microplastics in environmental matrices from Galway Bay, Ireland (vol 200 , 116153 ,2024)". Marine Pollution Bulletin (2024): https://publons.com/wos-op/publon/70224410/.
    10.1016/J.MARPOLBUL.2024.116990
  8. Haleigh Joyce; Róisín Nash; João Frias; Jonathan White; Alessandro Cau; Ester Carreras-Colom; Fiona Kavanagh. "Monitoring microplastic pollution: The potential and limitations of Nephrops norvegicus". Ecological Indicators 154 (2023): 110441-110441. http://dx.doi.org/10.1016/j.ecolind.2023.110441.
    10.1016/j.ecolind.2023.110441
  9. Huahong Shi; João Frias; Alaa El-Din H. Sayed; Gabriel Enrique De-la-Torre; Jong Mui Choo; Sheikh Aftab Uddin; Rajendran Rajaram; et al. "Small plastic fragments: A bridge between large plastic debris and micro- & nano-plastics". TrAC Trends in Analytical Chemistry (2023): 117308-117308. http://dx.doi.org/10.1016/j.trac.2023.117308.
    10.1016/j.trac.2023.117308
  10. Yifan Zheng; Mohamed Hamed; Gabriel Enrique De-la-Torre; João Frias; Mui-Choo Jong; Prabhu Kolandhasamy; Suchana Chavanich; et al. "Holes on surfaces of the weathered plastic fragments from coastal beaches". Marine Pollution Bulletin 193 (2023): 115180-115180. http://dx.doi.org/10.1016/j.marpolbul.2023.115180.
    10.1016/j.marpolbul.2023.115180
  11. C.D.M. Lima; M. Melo Júnior; S.H.L. Schwamborn; F. Kessler; L.A. Oliveira; B.P. Ferreira; G. Mugrabe; J. Frias; S. Neumann-Leitão. "Zooplankton exposure to microplastic contamination in a estuarine plume-influenced region, in Northeast Brazil". Environmental Pollution 322 (2023): 121072-121072. http://dx.doi.org/10.1016/j.envpol.2023.121072.
    10.1016/j.envpol.2023.121072
  12. Paul, Ann Tracy; Hannon, Colin; Svonja, Mateja; Connellan, Iarfhlaith; Frias, Joao. "Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland". Journal of the World Aquaculture Society (2023): https://publons.com/wos-op/publon/61439393/.
    10.1111/JWAS.12989
  13. Roisin Nash; Haleigh Joyce; Elena Pagter; João Frias; Janine Guinan; Louise Healy; Fiona Kavanagh; Malcolm Deegan; David O’Sullivan. "Deep Sea Microplastic Pollution Extends Out to Sediments in the Northeast Atlantic Ocean Margins". Environmental Science & Technology (2022): http://dx.doi.org/10.1021/acs.est.2c05926.
    10.1021/acs.est.2c05926
  14. João P. G. L. Frias. "Assessing the morphological impacts of long-term harvesting in intertidal gastropods using historical data and morphometric tools". Journal of Molluscan Studies 88 3 (2022): http://dx.doi.org/10.1093/mollus/eyac019.
    10.1093/mollus/eyac019
  15. João P. G. L. Frias. "Size dependent egestion of polyester fibres in the Dublin Bay Prawn (Nephrops norvegicus)". Marine Pollution Bulletin 180 (2022): 113768-113768. http://dx.doi.org/10.1016/j.marpolbul.2022.113768.
    10.1016/j.marpolbul.2022.113768
  16. João P. G. L. Frias. "Plastics, prawns, and patterns: Microplastic loadings in Nephrops norvegicus and surrounding habitat in the North East Atlantic". Science of The Total Environment 826 (2022): 154036-154036. http://dx.doi.org/10.1016/j.scitotenv.2022.154036.
    10.1016/j.scitotenv.2022.154036
  17. João P. G. L. Frias. "Assessing microplastic distribution within infaunal benthic communities in a coastal embayment". Science of The Total Environment 791 (2021): 148278-148278. http://dx.doi.org/10.1016/j.scitotenv.2021.148278.
    10.1016/j.scitotenv.2021.148278
  18. João P. G. L. Frias. "Editorial: Microplastics in the Marine Environment: Sources, Distribution, Biological Effects and Socio-Economic Impacts". Frontiers in Environmental Science 9 (2021): http://dx.doi.org/10.3389/fenvs.2021.676011.
    10.3389/fenvs.2021.676011
  19. João P. G. L. Frias. "Plastic additives and legacy persistent organic pollutants in the preen gland oil of seabirds sampled across the globe". Environmental Monitoring and Contaminants Research 1 0 (2021): 97-112. http://dx.doi.org/10.5985/emcr.20210009.
    10.5985/emcr.20210009
  20. João P. G. L. Frias. "Differences in microplastic abundances within demersal communities highlight the importance of an ecosystem-based approach to microplastic monitoring". Marine Pollution Bulletin (2020): http://dx.doi.org/10.1016/j.marpolbul.2020.111644.
    10.1016/j.marpolbul.2020.111644
  21. João P. G. L. Frias. "Floating microplastics in a coastal embayment: A multifaceted issue". Marine Pollution Bulletin (2020): http://dx.doi.org/10.1016/j.marpolbul.2020.111361.
    10.1016/j.marpolbul.2020.111361
  22. João P. G. L. Frias. "Varying levels of microplastics in benthic sediments within a shallow coastal embayment". Estuarine, Coastal and Shelf Science (2020): http://dx.doi.org/10.1016/j.ecss.2020.106915.
    10.1016/j.ecss.2020.106915
  23. João P. G. L. Frias. "The Azores archipelago as a transitory repository for small plastic fragments floating in the North-East Atlantic". Environmental Pollution (2020): http://dx.doi.org/10.1016/j.envpol.2020.114494.
    10.1016/j.envpol.2020.114494
  24. João P. G. L. Frias. "Quantification of microplastic ingestion by the decapod crustacean Nephrops norvegicus from Irish waters". Marine Pollution Bulletin (2020): http://dx.doi.org/10.1016/j.marpolbul.2020.110905.
    10.1016/j.marpolbul.2020.110905
  25. João P. G. L. Frias. "Current environmental microplastic levels do not alter emergence behaviour in the intertidal gastropod Littorina littorea". Marine Pollution Bulletin (2020): http://dx.doi.org/10.1016/j.marpolbul.2019.110859.
    10.1016/j.marpolbul.2019.110859
  26. João P. G. L. Frias. "Microplastics: Finding a consensus on the definition". Marine Pollution Bulletin (2019): https://doi.org/10.1016/j.marpolbul.2018.11.022.
    https://doi.org/10.1016/j.marpolbul.2018.11.022
  27. João P. G. L. Frias. "Low levels of microplastics recorded from the common periwinkle, Littorina littorea on the west coast of Ireland". Marine Pollution Bulletin 149 (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85073185705&partnerID=MN8TOARS.
    10.1016/j.marpolbul.2019.110645
  28. João P. G. L. Frias. "Deep sea sediments of the Arctic Central Basin: A potential sink for microplastics". Deep-Sea Research Part I: Oceanographic Research Papers 145 (2019): 137-142. http://www.scopus.com/inward/record.url?eid=2-s2.0-85062655559&partnerID=MN8TOARS.
    10.1016/j.dsr.2019.03.003
  29. João P. G. L. Frias. "Spatio-temporal variability of beached macro-litter on remote islands of the North Atlantic". Marine Pollution Bulletin (2018): https://doi.org/10.1016/j.marpolbul.2018.05.038.
    https://doi.org/10.1016/j.marpolbul.2018.05.038
  30. João P. G. L. Frias. "Microplastics on the Portuguese coast". Marine Pollution Bulletin (2018): https://doi.org/10.1016/j.marpolbul.2018.04.025.
  31. João P. G. L. Frias. "Microplastics in Galway Bay: A comparison of sampling and separation methods". Marine Pollution Bulletin 135 (2018): 932-940. http://www.scopus.com/inward/record.url?eid=2-s2.0-85051523333&partnerID=MN8TOARS.
    10.1016/j.marpolbul.2018.08.013
  32. João P. G. L. Frias. "Microplastics in Juvenile Commercial Fish from an Estuarine Environment". Proceedings of the International Conference on Microplastic Pollution in the Mediterranean Sea (2017): https://doi.org/10.1007/978-3-319-71279-6_18.
    10.1016/j.marpolbul.2018.01.044
  33. João P. G. L. Frias. "Plastic ingestion in oceanic-stage loggerhead sea turtles (Caretta caretta) off the North Atlantic subtropical gyre". Marine Pollution Bulletin (2017):
    10.1016/j.marpolbul.2017.06.008
  34. Frias, JPGL; Gago, J.; Otero, V.; Sobral, P.. "Microplastics in coastal sediments from Southern Portuguese shelf waters". Marine Environmental Research 114 3 (2016): 24-30.
    Published • 10.1016/j.marenvres.2015.12.006
  35. Frias, JPGL; Otero, V.; Sobral, P.. "Evidence of microplastics in samples of zooplankton from Portuguese coastal waters". Marine Environmental Research 95 95 (2014): 89-95.
    Published • 10.1016/j.marenvres.2014.01.001
  36. Mizukawa, Kaoruko; Takada, Hideshige; Ito, Maki; Geok, Yeo Bee; Hosoda, Junki; Yamashita, Rei; Saha, Mahua; et al. "Monitoring of a wide range of organic micropollutants on the Portuguese coast using plastic resin pellets". Marine Pollution Bulletin 70 1-2 (2013): 296-302.
    Published • 10.1016/j.marpolbul.2013.02.008
  37. Frias, JPGL; Antunes, J.C.; Sobral, P.. "Local marine litter survey - A case study in Alcobaça municipality, Portugal". Revista de Gestão Costeira Integrada 13 2 (2013): 169-179.
    Published • 10.5894/rgci395
  38. Antunes, J.C.; Frias, JPGL; Micaelo, A.C.; Sobral, P.. "Resin pellets from beaches of the Portuguese coast and adsorbed persistent organic pollutants". Estuarine, Coastal and Shelf Science 130 130 (2013): 62-69.
    Published • 10.1016/j.ecss.2013.06.016
  39. J. P. G. L. Frias; J. Martins; P. Sobral. "Research in plastic marine debris in mainland Portugal". {RGCI 11 1 (2011): 145-148. http://dx.doi.org/10.5894/rgci267.
    Published • 10.5894/rgci267
  40. Frias, JPGL; Sobral, P.; Ferreira, A.M.. "Organic pollutants in microplastics from two beaches of the Portuguese coast". Marine Pollution Bulletin 60 11 (2010): 1988-1992.
    Published • 10.1016/j.marpolbul.2010.07.030
Manual
  1. Frias, JPGL; Sobral, P.; Antunes, J.C.. Marine litter: An issue with no borders – Portuguese Partnership on Marine Litter.. Portugal. 2015.
Preprint
  1. Fiona Kavanagh; Morena Gaudino; Sinead Rooney; Joao Frias; Haleigh Joyce; Roisin Nash. "The impact of extreme weather events on microplastics in intertidal sediments within a coastal embayment. ". 2025. https://doi.org/10.5194/oos2025-566.
    10.5194/oos2025-566
  2. Roisin Nash; Oran McGeeney; Elisabeth Boucheron; Elena Pagter; Tomasz Dabrowski; Diego Periro; Louise Firth; Joao Frias; Meghann Tansley. "Eco-engineering: a concrete solution to increasing biodiversity and monitoring microplastics. ". 2025. https://doi.org/10.5194/oos2025-987.
    10.5194/oos2025-987
  3. Bo Hu; Huahong Shi; Mui-Choo Jong; João Frias; Lei Su. "Two sides of the same coin: Weathering differences of plastic fragments in coastal environments around the globe". 2025. https://doi.org/10.5194/egusphere-egu25-2452.
    10.5194/egusphere-egu25-2452
  4. João Frias; Aaron Beck; Francesco Regoli; Jes Vollertsen; Patrizia Ziveri; Richard Sempere. "Sources, distribution and impacts of microplastics in the marine environment: an overview of the results of JPI Oceans projects". 2025. https://doi.org/10.5194/oos2025-322.
    10.5194/oos2025-322
  5. Ana Luzia Lacerda; João Frias; Maria Luiza Pedrotti. "Tardigrades in the Marine Plastisphere: New Hitchhikers Surfing Plastics". 2023. http://dx.doi.org/10.2139/ssrn.4627737.
    10.2139/ssrn.4627737

Other

Dataset
  1. Robin Lenz; Franziska Fischer; Melinda Arnold; Verónica Fernández-González; Carmen María Moscoso Pérez; José Manuel Andrade-Garda; Soledad Muniategui-Lorenzo; Dieter Fischer; João P. G. L. Frias. robna/MPX_specDB: MicroPlastiX SpecDB. 2023.
    10.5281/ZENODO.10149551
Activities

Association member

Society Organization name Role
2013/11 - Current Associação Portuguesa do Lixo Marinho (APLM) Membro co-fundador
Distinctions

Award

2022 President's award for Research Excellence and Impact
Atlantic Technological University - Galway City, Ireland