Oskar

Nyberg

PhD

Research associate

oskar.nyberg@kva.se

+46735351260

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Profile summary

  • Sustainable aquaculture
  • Antibiotic resistance
  • Ecotoxicological modelling
  • Life cycle assessment
  • Antibiotic resistance gene monitoring
  • Resistome

Oskar Nyberg is engaged in the Seafood Business for Ocean Stewardship (SeaBOS) initiative, leading the science team in the Keystone Project on Antimicrobial Resistance.

Nyberg is engaged in the Keystone Project on AMR within the SeaBOS initiative where he is developing a monitoring program based on molecular biology using DNA and sequencing methods for quantifying antibiotic resistant genes in bacterial populations associated to aquaculture operations. This program is intended to be used for applying strategical interventions for reducing the use of antimicrobials across diverse aquaculture operations on a global scale.

Following a bachelor’s and master’s degree in marine biology at Stockholm University working with environmental aspects of antibiotic use in Vietnamese aquaculture, his PhD studies focused on interdisciplinary studies on sustainable aquaculture development and how to evaluate the consequences of antibiotic use in aquaculture in Asia and Africa. His work includes analysing aquaculture production strategies, genetic methods to identify and quantify antibiotic resistant genes, and developing modelling approaches for capturing environmental impacts of antibiotics emitted throughout the aquaculture value chain. As a second part to the PhD work, Oskar focused on ecotoxicological modelling of agro-chemicals in order to quantify uncertainties in current ecotoxicological impact assessment schemes and to improve data availability.

Nyberg engaged as an expert within the Antimicrobial Assessment on Global Aquaculture Production (AGAP) workshop series hosted by Monterey Bay Aquarium’s Seafood Watch.

Key publications

Farías, D.R., Ibarra, R., Estévez, R.A., Tlusty, M.F., Nyberg, O., Troell, M., Avendaño-Herrera, R., and Norden, W. (2024) Towards Sustainable Antibiotic Use in Aquaculture and Antimicrobial Resistance: Participatory Experts’ Overview and Recommendations. Antibiotics 13: 887. https://doi.org/10.3390/antibiotics13090887

Nyberg, O., Novotny, A., Sbaay, A.S., Nasr-Allah, A.M., Al-Kenawy, D.A.R., Rossignoli, C.M., and Henriksson, P.J.G. (2024) Poultry manure fertilization of Egyptian aquaculture ponds brings more cons than pros. Aquaculture 590: 741040. https://doi.org/10.1016/j.aquaculture.2024.741040

Nyberg, O., Rico, A., Guinée, J.B. et al. Characterizing antibiotics in LCA—a review of current practices and proposed novel approaches for including resistance. Int J Life Cycle Assess 26, 1816–1831 (2021). https://doi.org/10.1007/s11367-021-01908-y

Publications by Nyberg, Oskar

Towards Sustainable Antibiotic Use in Aquaculture and Antimicrobial Resistance: Participatory Experts’ Overview and Recommendations

Journal / article | 2024

Daniela R. Farías, Rolando Ibarra, Rodrigo A. Estévez, Michael F. Tlusty, Oskar Nyberg, Max Troell, Ruben Avendaño-Herrera, Wendy Norden. 2024. Towards Sustainable Antibiotic Use in Aquaculture and Antimicrobial Resistance: Participatory Experts’ Overview and Recommendations. Antibiotics. https://doi.org/10.3390/antibiotics13090887

Notably, 56 worldwide experts gathered for the Antimicrobial Assessment on Global Aquaculture Production (AGAP) series of workshops to (1) evaluate the current state of knowledge on antimicrobial use and identify existing gaps; (2) formulate strategies to identify ecologically relevant impact indicators and establish thresholds for assessment; (3) identify pivotal socioeconomic factors and effective governance mechanisms essen...

Poultry manure fertilization of Egyptian aquaculture ponds brings more cons than pros

Journal / article | 2024

Oskar Nyberg, Andreas Novotny, Ashraf S. Sbaay, Ahmed M. Nasr-Allah, Diaa A.R. Al-Kenawy, Cristiano M. Rossignoli, Patrik J.G. Henriksson. 2024. Poultry manure fertilization of Egyptian aquaculture ponds brings more cons than pros. Aquaculture. https://doi.org/10.1016/j.aquaculture.2024.741040

Aquaculture is a crucial sector for Egyptian food production, providing a cheap source of animal protein while securing income and employment for a substantial part Egypt's population. Nile tilapia ( Oreochromis niloticus ) is the most commonly produced fish, usually farmed in earthen ponds around the Northern Delta Lakes. A common practice among farms is to fertilize ponds with chicken manure (CM) in order to increase nutrie...