Lars-Flemming Pedersen

2025

Estimating biofilm activity on biofilter elements in recirculating aquaculture systems (RAS) for rearing Atlantic salmon parr (Salmo salar) during operation with ozone and peracetic acid

Qi, W., Skov, P. V., de Jesus Gregersen, K. J., Mousavi, S., Pedersen, L.-F. & Mota, V. C., 2025, In: Aquaculture. 594, 11 p., 741381.

Research output: Contribution to journal › Journal article › Research › peer-review

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2024

Peracetic acid mode-of-action on aquaculture microbes evaluated by dual-staining flow cytometry

Aalto, S. L., Madsen, L. & Pedersen, L.-F., 2024, In: Aquaculture. 578, 7 p., 740129.

Research output: Contribution to journal › Journal article › Research › peer-review

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Towards sustainable water disinfection with peracetic acid in aquaculture: A review

Liu, D., Straus, D. L., Pedersen, L., Good, C., Lazado, C. C. & Meinelt, T., 2024, In: Reviews in Aquaculture. 16, 4, p. 1621-1646

Research output: Contribution to journal › Review › peer-review

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2023

A case study comparing the addition of two different carbon sources in pilot scale RAS with trout with and without biofilters

Gregersen, K. J. D. J. & Pedersen, L.-F., 2023, In: Aquacultural Engineering. 103, 102370.

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A novel method to estimate biofilm activity based on enzymatic oxygen release from hydrogen peroxide decomposition

Qi, W., Skov, P. V., de Jesus Gregersen, K. J. & Pedersen, L. F., 2023, In: Biofilm. 5, 9 p., 100121.

Research output: Contribution to journal › Journal article › Research › peer-review

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Bakterier i RAS – og hvordan vi kan måle det som er nesten usynlig

Pedersen, L.-F., 2023, In: iLaks.no.

Research output: Contribution to journal › Contribution to newspaper - Comment/debate

Open Access

Environmental Enrichment for Rainbow Trout Fingerlings: A Case Study Using Shelters in an Organic Trout Farm

Eidsmo, J., Madsen, L., Pedersen, L.-F., Jokumsen, A. & Gesto, M., 2023, In: Animals. 13, 14 p., 268.

Research output: Contribution to journal › Journal article › Research › peer-review

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Evaluating protein skimmer performance in a commercial seawater recirculating aquaculture system (RAS)

Kovács, B. D., de Jesus Gregersen, K. J., Rüppel, F., von Danwitz, A. & Pedersen, L.-F., 2023, In: Aquacultural Engineering. 103, 11 p., 102369.

Research output: Contribution to journal › Journal article › Research › peer-review

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318 Downloads (Pure)

Foam fractionation in freshwater – new knowledge and future perspectives

de Jesus Gregersen, K. J. & Pedersen, L.-F., 2023, 6th NordicRAS Workshop on Recirculating Aquaculture Systems Tromsø, Norway, 3-4 October 2023: Book of Abstracts. Dalsgaard, J. (ed.). DTU Aqua, p. 19-19 1 p. (DTU Aqua-rapport; No. 431-2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Innovative and effective water treatment with squeezable foam rubber filters in RAS

Kovács, B. D., de Jesus Gregersen, K. J. & Pedersen, L.-F., 2023, 6th NordicRAS workshop on Recirculating Aquaculture Systems, 3-4 October 2023, Tromsø, Norway. Dalsgaard, J. (ed.). DTU Aqua, p. 16-16 1 p. (DTU Aqua-rapport; No. 431-2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

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Post-release effects of catch and release angling for sea trout: Mortality, growth and wound healing

Skov, C., Ferter, K., Jepsen, N., Pedersen, L.-F., Lewin, W.-C., Gundelund, C. & Weltersbach, M. S., 2023, In: Fisheries Research. 261, 106637 p., 13.

Research output: Contribution to journal › Journal article › Research › peer-review

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2022

Effect of biocarrier material on nitrification performance during start-up in freshwater RAS

Aalto, S. L., Letelier-Gordo, C. O., Pedersen, L.-F. & Pedersen, P. B., 2022, In: Aquacultural Engineering. 99, 9 p., 102292.

Research output: Contribution to journal › Journal article › Research › peer-review

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Effects of ozonation and foam fractionation on rainbow trout condition and physiology in a small-scale freshwater recirculation aquaculture system

Gesto, M., de Jesus Gregersen, K. J. & Pedersen, L.-F., 2022, In: Aquaculture. 557, 11 p., 738312.

Research output: Contribution to journal › Journal article › Research › peer-review

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Estimation of Biofilm Activities on Biofilter Carriers from Recirculating Aquaculture System by Respirometry

Qi, W., Skov, P. V., de Jesus Gregersen, K. J. & Pedersen, L.-F., 2022, Proceedings of Aquaculture Europe 2022. p. 1087-1088 2 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

Estimation of nitrifying and heterotrophic bacterial activity in biofilm formed on RAS biofilter carriers by respirometry

Qi, W., Skov, P. V., de Jesus Gregersen, K. J. & Pedersen, L.-F., 2022, In: Aquaculture. 561, 11 p., 738730.

Research output: Contribution to journal › Journal article › Research › peer-review

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Evaluation of biofilter performance with alternative local biomedia in pilot scale recirculating aquaculture systems

Mnyoro, M. S., Munubi, R. N., Pedersen, L.-F. & Chenyambuga, S. W., 2022, In: Journal of cleaner production. 366, 9 p., 132929.

Research output: Contribution to journal › Journal article › Research › peer-review

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Lancering af ozon på ferskvandsdambrug

de Jesus Gregersen, K. J. & Pedersen, L.-F., 2022, 20 p.

Research output: Book/Report › Report › Commissioned

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Microbiome response to foam fractionation and ozonation in RAS

Aalto, S. L., Syropoulou, E., de Jesus Gregersen, K. J., Tiirola, M., Pedersen, P. B. & Pedersen, L.-F., 2022, In: Aquaculture. 550, 9 p., 737846.

Research output: Contribution to journal › Journal article › Research › peer-review

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Mucosal immune and stress responses of Neoparamoeba perurans-infected Atlantic salmon (Salmo salar) treated with peracetic acid shed light on the host-parasite-oxidant interactions

Lazado, C. C., Strand, D. A., Breiland, M. W., Furtado, F., Timmerhaus, G., Gjessing, M. C., Hytterød, S., Merkin, G. V., Pedersen, L.-F., Pittman, K. A. & Krasnov, A., 2022, In: Frontiers in Immunology. 13, 21 p., 948897.

Research output: Contribution to journal › Journal article › Research › peer-review

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Peracetic acid as a potential treatment for amoebic gill disease (AGD) in Atlantic salmon

Lazado, C. C., Pedersen, L.-F., Strand, D., Breiland, M. W., Rørmark, L. & Pittman, K., 2022, Nofima. 218 p. (Nofima Marked. Rapport; No. 13/2022).

Research output: Book/Report › Report › Research

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Regulation of the molecular repertoires of oxidative stress response in the gills and olfactory organ of Atlantic salmon following infection and treatment of the parasite Neoparameoba perurans

Furtado, F., Breiland, M. W., Strand, D., Timmerhaus, G., Carletto, D., Pedersen, L.-F., Afonso, F. & Lazado, C. C., 2022, In: Fish and Shellfish Immunology. 130, p. 612-623 12 p.

Research output: Contribution to journal › Journal article › Research › peer-review

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Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H₂O₂ and NaCl

Jafari, L., Jesus Gregersen, K. J., Vadstein, O. & Pedersen, L., 2022, In: Aquaculture Research. 53, 9, p. 3274-3282 9 p.

Research output: Contribution to journal › Journal article › Research › peer-review

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Towards biocide-free recirculating aquaculture systems

Koski, M., de Jesus Gregersen, K. J., Riisager-Simonsen, C., Pinyol Gallemi, A., Lisbjerg, D. & Pedersen, L.-F., 2022, Danish Environmental Protection Agency. 59 p.

Research output: Book/Report › Report › Commissioned

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2021

Crowding reshapes the mucosal but not the systemic response repertoires of Atlantic salmon to peracetic acid

Lazado, C. C., Sveen, L. R., Soleng, M., Pedersen, L.-F. & Timmerhaus, G., 2021, In: Aquaculture. 531, 10 p., 735830.

Research output: Contribution to journal › Journal article › Research › peer-review

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Dynamic morphometrics of mucous cells reveal the minimal impact of therapeutic doses of peracetic acid on Atlantic salmon gill health

Haddeland, S., Lazado, C. C., Merkin, G. V., Myre, O. J., Okubamichael, M. A., Pedersen, L.-F. & Pittman, K., 2021, In: Aquaculture. 534, 9 p., 736315.

Research output: Contribution to journal › Journal article › Research › peer-review

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Effect of water velocity on ammonium and nitrite removal in pilot scale fixed bed biofilters

Mnyoro, M. S., Arvin, E., Munubi, R. N., Chenyambuga, S. W. & Pedersen, L.-F., 2021, In: Aquacultural Engineering. 93, 5 p., 102160.

Research output: Contribution to journal › Journal article › Research › peer-review

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Foam fractionation and ozonation in freshwater Recirculation Aquaculture Systems

Gregersen, K. J. D. J., Pedersen, L.-F., Pedersen, P. B., Syropoulou, E. & Dalsgaard, J., 2021, In: Aquacultural Engineering. 95, 8 p., 102195.

Research output: Contribution to journal › Journal article › Research › peer-review

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Formaldehyde degradation in denitrifying woodchip bioreactors: Effects of temperature, concentration and hydraulic retention time

von Ahnen, M., Pedersen, L.-F. & Pedersen, P. B., 2021, In: Aquacultural Engineering. 95, 10 p., 102199.

Research output: Contribution to journal › Journal article › Research › peer-review

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2020

Antioxidative, histological and immunological responses of rainbow trout after periodic and continuous exposures to a peracetic acid-based disinfectant

Liu, D., Lazado, C. C., Pedersen, L.-F., Straus, D. L. & Meinelt, T., 2020, In: Aquaculture. 520, 734956.

Research output: Contribution to journal › Journal article › Research › peer-review

Assessing peracetic acid for controlling post‐vaccination Saprolegnia spp.‐associated mortality in juvenile Atlantic salmon Salmo salar in freshwater recirculation aquaculture systems

Good, C., Davidson, J., Straus, D. L., Harper, S., Marancik, D., Welch, T., Peterson, B., Pedersen, L., Lepine, C., Redman, N., Meinelt, T., Liu, D. & Summerfelt, S., 2020, In: Aquaculture Research. 51, 6, p. 2624-2627 4 p.

Research output: Contribution to journal › Journal article › Research › peer-review

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Decay of peracetic acid in seawater and implications for its chemotherapeutic potential in aquaculture

Pedersen, L.-F. & Lazado, C. C., 2020, In: Aquaculture Environment Interactions. 12, p. 153-165 13 p.

Research output: Contribution to journal › Journal article › Research › peer-review

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Effects of foam fractionation and chemical disinfection on the removal of different microalgae cultures

Figueiras Guilherme, M., Jesus Gregersen, K. J. & Pedersen, L., 2020, In: Aquaculture Research. 51, 8, p. 3274-3283 10 p.

Research output: Contribution to journal › Journal article › Research › peer-review

Electrochemical treatment of RAS water

Pedersen, L.-F., Lier, A. M. R. & Jensen, D. J., 2020, 6 p.

Research output: Other contribution › Net publication - Internet publication › Research

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Morphomolecular alterations in the skin mucosa of Atlantic salmon (Salmo salar) after exposure to peracetic acid-based disinfectant

Lazado, C. C., Haddeland, S., Timmerhaus, G., Berg, R. S., Merkin, G., Pittman, K. & Pedersen, L.-F., 2020, In: Aquaculture Reports. 17, 5 p., 100368.

Research output: Contribution to journal › Journal article › Research › peer-review

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Oxidant-induced modifications in the mucosal transcriptome and circulating metabolome of Atlantic salmon

Lazado, C. C., Pedersen, L.-F., Kirste, K. H., Soleng, M., Breiland, M. W. & Timmerhaus, G., 2020, In: Aquatic Toxicology. 227, 11 p., 105625.

Research output: Contribution to journal › Journal article › Research › peer-review

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UV irradiation and micro filtration effects on micro particle development and microbial water quality in recirculation aquaculture systems

de Jesus Gregersen, J., Pedersen, P. B., Pedersen, L.-F., Liu, D. & Dalsgaard, A. J. T., 2020, In: Aquaculture. 24 p., 734785.

Research output: Contribution to journal › Journal article › Research › peer-review

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2019

A new disinfectant for the tool chest - peracetic acid

Straus, D., Meinelt, T., Liu, D., Pedersen, L.-F., Good, C. & Davidson, J., 2019, Book of Abstracts World Aquaculture Society 2019. World Aquaculture Soceity, p. 1057-1057

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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A retrospective of our international collaboration on peracetic acid as a disinfectant for aquaculture

Strauss, D. L., Meinelt, T., Liu, D., Pedersen, L.-F., Good, C. & Davidson, J., 2019, Aquaculture Drug Approval Workshop. 47

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

Assessment of bacterial activity in biofilm - examples and perspectives

Pedersen, L.-F., Gregersen, K. J. D. J., Pedersen, P. B. & Skov, P. V., 2019, 5th NordicRAS Workshop on Recirculating Aquaculture Systems. Berlin, Germany, 7-8 October 2019: Book of Abstracts. Dalsgaard, J. (ed.). DTU Aqua, p. 27-27 (DTU Aqua-rapport; No. 350-2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Assessment of microbial activity in water based on hydrogen peroxide decomposition rates

Pedersen, L.-F., Rojas-Tirado, P. A., Arvin, E. & Pedersen, P. B., 2019, In: Aquacultural Engineering. 85, p. 9-14

Research output: Contribution to journal › Journal article › Research › peer-review

Atlantic salmon (Salmo salar) mounts systemic and mucosal stress responses to peracetic acid

Soleng, M., Johansen, L.-H., Johnsen, H., Johansson, G. S., Breiland, M. W., Rørmark, L., Pittman, K., Pedersen, L.-F. & Lazado, C. C., 2019, In: Fish and Shellfish Immunology. 93, p. 895-903

Research output: Contribution to journal › Journal article › Research › peer-review

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Combining UV and micro filtration to manage microbial water quality in recirculating aqua culture systems

de Jesus Gregersen, K. J., Pedersen, P. B., Pedersen, L.-F., Liu, D. & Dalsgaard, J., 2019, 5th NordicRAS Workshop on Recirculating Aquaculture Systems. Berlin, Germany, 7-8 October 2019: Book of Abstracts. Dalsgaard, J. (ed.). Hirtshals, Denmark: DTU Aqua, p. 23-23 1 p. (DTU Aqua-rapport; No. 350-2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Effects of abrupt salinity increase on nitrification processes in freshwater moving bed biofilters

Kinyage, J. P. H., Pedersen, P. B. & Pedersen, L.-F., 2019, In: Aquacultural Engineering. 84, p. 91-98

Research output: Contribution to journal › Journal article › Research › peer-review

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Extension update - a new aquaculture disinfectant - Peracetic Acid

Straus, D., Meinelt, T., Liu, D., Pedersen, L.-F., Good, C. & Davidson, J., 2019, Book of Abstracts World Aquaculture Society 2019. World Aquaculture Soceity, p. 1055-1055

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Investigating the use of peracetic acid to reduce saprolegniasis in Atlantic salmon RAS culture

Good, C., Davidson, J., May, T., Crouse, C., Lepine, C., Redman, N., Murray, M., Summerfelt, S., Straus, D. L., Harper, S., Marancik, D., Welch, T. J., Peterson, B., Pedersen, L.-F. & Phuntumart, V., 2019, 5th NordicRAS Workshop on Recirculating Aquaculture Systems Berlin, Germany, 7-8 October 2019: Book of Abstracts. Dalsgaard, J. (ed.). Hirtshals, Denmark: DTU Aqua, p. 41-41 1 p. (DTU Aqua-rapport; No. 350-2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Microbial dynamics in RAS water: Effects of adding acetate as a biodegradable carbon-source

Rojas-Tirado, P. A., Pedersen, P. B., Vadstein, O. & Pedersen, L.-F., 2019, In: Aquacultural Engineering. 84, p. 106-116

Research output: Contribution to journal › Journal article › Research › peer-review

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Microbial water quality – assessment of baselines and application perspectives

Pedersen, P. B., Pedersen, L.-F. & Huang, Z., 2019, 5th NordicRAS Workshop on Recirculating Aquaculture Systems. Berlin, Germany, 7-8 October 2019 Book of Abstracts. Dalsgaard, J. (ed.). DTU Aqua, p. 25-25 1 p. (DTU Aqua-rapport; No. 350-2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Micro particles and microbial activity in Danish recirculating rainbow trout (Oncorhynchus mykiss) farms

de Jesus Gregersen, K. J., Pedersen, P. B., Pedersen, L.-F. & Dalsgaard, J., 2019, In: Aquacultural Engineering. 84, p. 60-66

Research output: Contribution to journal › Journal article › Research › peer-review

New Tools to Improve Fish Health and Environment in Organic Aquacultur

Jokumsen, A., Gesto, M., Buchmann, K., Lorenzen, N., Pedersen, L.-F., Henriksen, N. H., Schmidt, J. G., Madsen, L., Kania, P. & Pedersen, P. B., 2019, p. 634-634.

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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Peracetic acid and its anti-parasitic activity against Neoparamoeba perurans, the causative agent of amoebic gill disease

Breiland, M. W., Hytterød, S., Mohammad, S., Soleng, M., Johansen, L.-H., Rørmark, L., Pedersen, L.-F. & Lazado, C. C., 2019.

Research output: Contribution to conference › Conference abstract for conference › Research

Lars-Flemming Pedersen

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