Department of Fisheries Resources

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About the department

The basic aim of the Department’s activity is to develop and implement an ecosystem approach to the resources management, i.e. considering the impact of environmental factors on the living resources as well as the impact of fisheries on the exploited resources and the ecosystem.

These themes are approached through the following research fields:

  • Biology and the significance of fish populations in the Baltic Sea ecosystem, including:
    • determining the impact of natural and anthropogenic factors on the life processes and behaviour of fish (like reproduction, growth, feeding or migrations),
    • analysis of chosen parameters and characteristics of fish as bio-indicators for changes which occur in the environment,
    • genetic characteristics of the used resources, with a special attention paid to the possibilities of identifying populations.
  • Defining the dynamics and production of stocks of significant species of fish, which are caught as a part of Baltic and deep-sea fisheries, so that their resources can be used rationally.


Prof. Jan 587-356-267

Deputy Head
Dr. Anna Wą 587-356-275

Prof. Jan 587-356-267
Prof. Magdalena 587-356-225
Dr.Eng. Iwona Psuty, Professor of 587-356-140
Senior scientists
Dr. Katarzyna Nadolna-Ał 587-356-215
Dr. Joanna 587-356-215
Dr.Eng. Krzysztof 587-356-223
Dr. Szymon Smoliń 587-356-214
Engineering and technical employees
Julita Gutkowska, 587-356-213
Zuzanna Mirny, 587-356-213
Sylwia 587-356-206
Dr.Eng. Kordian 587-356-266

Department 587-356-206

Major projects since 2013

  1. Dynamics of the population of Baltic fish important for the Polish fisheries – NMFRI statutory research, project implemented annually, head – Professor J. Horbowy
  2. Seafood safety and quality in terms of the zoonotic and toxicological hazard: risk assessment, monitoring and mitigation, SeaQual – project within the framework of BIOSTRATEG, 2016-2019, head – Dr. M. Podolska
  3. INtegrating SPatIal pRocesses into Ecosystem models for sustainable utilization of fish resource, INSPIRE – project within the framework of BONUS EEIG, 2014-2017, head – Professor J. Horbowy
  4. Co-creating ecosystem-based fisheries management solutions, MareFrame – 7 FP EU, 2014-2017, head – Professor J. Horbowy
  5. Tagging Baltic Cod, TaBaCod – project within the framework of BalticSea 2020, 2016-2019, head – Dr. K. Radtke
  6. European Union Basin – scale Analysis, Synthesis and Integration, EURO-BASIN – 7 FP EU, 2010-2014, head – Professor J. Horbowy
  7. Maximising yield of fisheries while balancing ecosystem, economic and social concerns,  MyFish, – 7 FP EU, 2012-2016, head – Professor J. Horbowy
  8. Identification of sources of cod (Gadus morhua) infection with parasites, based on the analysis of parasite fauna in marine invertebrates present in the diet of these fish – NSN project within PRELUDIUM 10 competition, 2016-2018, head – J. Pawlak, M.Sc.
  9. Characteristics of the genetic diversity of the migratory whitefish population (Coregonus lavaretus) occurring in the waters of the southern Baltic – NMFRI statutory research, 2013-2015, head – Dr. A. Wąs-Barcz
  10. Testing the efficiency of restocking with migratory sea trout in the Vistula River using genetic methods under the “Restocking Polish Marine Areas” programme – commissioned research, 2013-2018, head – Dr. A. Wąs-Barcz
  11. Assessment of factors influencing the decline in cod condition (KonDor) – NMFRI statutory research, 2020-2022, head Professor M. Podolska
  12. Population composition of the southern Baltic herring stock – NMFRI statutory research, 2020-2022, head Professor M. Podolska
  13. Study on ecosystem-based approaches applied to fisheries management under the CFP – EASME/EMFF/2018/011, 2020-2022, head at NMFRI, Professor Jan Horbowy

Major publications since 2014

  1. Podolska M., Nadolna K., Szostakowska B. 2014. Acetylcholinesterase activity in the host-parasite system of the cod Gadus morhua and acanthocephalan Echinorhynchus gadi from the southern Baltic Sea. Marine Pollution Bulletin 79:100-106
  2. Smoliński, S., Całkiewicz J. 2015. A fish-based index for assessing the ecological status of Polish transitional and coastal waters. Marine Pollution Bulletin, 101:497-506
  3. Wąs, A., Bernaś, R., 2016. Long-term and seasonal genetic differentiation in wild and enhanced stocks of sea trout (Salmo trutta m. trutta L.) from the Vistula River, in the southern Baltic—Management implications. Fisheries Research. 175: 57-65. Doi: 10.1016/j.fishres.2015.11.006
  4. Horbowy, J. 2016. Effects of varying natural mortality and selectivity on the assessment of eastern Baltic cod (Gadus morhua Linnaeus, 1758) stock. Journal of Applied Ichthyology, 32: 1032-1040. doi:10.1111/jai.13202
  5. Horbowy, J., Podolska, M., Nadolna-Ałtyn, K. 2016. Increasing occurrence of anisakid nematodes in the liver of cod (Gadus morhua) from the Baltic Sea: Does infection affect the condition and mortality of fish? Fisheries Research 179: 98–103
  6. Podolska M., Polak-Juszczak, L. Nadolna-Ałtyn, K. 2016. Host condition and accumulation of metals by acanthocephalan parasite Echinorhynchus gadi in cod Gadus morhua from the southern Baltic Sea. Marine Pollution Bulletin. 113: 287–292
  7. Smoliński S., Radtke K. 2016. Spatial prediction of demersal fish diversity in the Baltic Sea: comparison of machine learning and regression-based techniques. – ICES Journal of Marine Science, 74: 102-111
  8. Horbowy, J., Luzeńczyk, A. 2017. Effects of multispecies and density dependent factors on MSY reference points: Example of the Baltic Sea sprat. Can. J. Fish. Aquat. Sci. 74: 864–870
  9. Horbowy J., Tomczak M.T. 2017. Extension of biomass estimates to pre-assessment periods using density dependent surplus production approach. PLoS ONE 12(11): e0186830. pone.0186830
  10. Smoliński, S., Mirny, Z. 2017. Otolith biochronology as an indicator of marine fish responses to hydroclimatic conditions and ecosystem regime shifts, Ecological Indicators, 79: 286-294
  11. Smoliński S. 2018. Incorporation of optimal environmental signals in the prediction of fish recruitment using random forest algorithms, Canadian Journal of Fisheries and Aquatic Sciences, 76 : 15-27,
  12. Pawlak J, Nadolna-Ałtyn K, Szostakowska B, Pachur M, Podolska M. 2018. Saduria entomon infected with Hysterothylacium aduncum found in situ in the stomach of cod (Gadus morhua) from the Baltic Sea. Journal of Helminthology 92: 645–648.
  13. Smoliński, S., Glazaczow, A., (2019), Cascading effects of temperature alterations on trophic ecology of European grayling (Thymallus thymallus), Scientific Reports, 9:18358,,
  14. Smoliński, S. (2019), Sclerochronological approach for the identification of herring
    growth drivers in the Baltic Sea,
    Ecological Indicators, 101:420-431, 
  15. Podolska Magdalena, Bogusław Pawlikowski, Katarzyna Nadolna-Ałtyn, Joanna Pawlak, Katarzyna Komar-Szymczak, Beata Szostakowska. 2019. How effective is freezing at killing Anisakis simplex, Pseudoterranova krabbei, and P. decipiens larvae? An experimental evaluation of time-temperature conditions. Parasitology Research (2019) 118:2139–2147 
  16. Pawlak J.,  Nadolna-Ałtyn K., Szostakowska B., Pachur M., Bańkowska A., Podolska M. 2019. First evidence of the presence of Anisakis simplex in Crangon crangon and Contracaecum osculatum in Gammarus sp. by in situ examination of the stomach contents of cod (Gadus morhua) from the southern Baltic Sea. Parasitology 1–8. (IF: 2.456).  
  17. Bauer B, Horbowy J, Rahikainen M, Kulatska N, Mu¨ller-Karulis B, Tomczak MT. 2019 Model uncertainty and simulated multispecies fisheries management advice in the Baltic Sea. PLoS ONE 14(1): e0211320. https://doi. org/10.1371/journal.pone.0211320  
  18. John G. Pope, , Valerio Bartolino , Nataliia Kulatska , Barbara Bauer , Jan Horbowy, Joana P.C. Ribeiro , Erla Sturludottir , Robert Thorpe. 2019. Comparing the steady state results of a range of multispecies models between and across geographical areas by the use of the jacobian matrix of yield on fishing mortality rate. Fisheries Research 209 (2019) 259–270
  19. McQueen, K., Mion, M., Hilvarsson, A., Casini, M., Olesen, H.J., Hüssy, K., Radtke, K., Krumme, U. 2019.  Effects of freezing on length and mass measurements of Atlantic cod Gadus morhua in the Baltic Sea. J Fish Biol. 2019 Dec; 95(6):1486-1495. doi: 10.1111/jfb.14171. Epub 2019 Nov 12.
  20. Smoliński, S., Schade, F. M., Berg, F. 2020. Assessing the performance of statistical classifiers to discriminate fish stocks using Fourier analysis of otolith shape, Canadian Journal of Fisheries and Aquatic Sciences, 77:674-683, 
  21. Horbowy, J., Hommik, K. 2020. Survey-based estimates of Fmsy and its proxies. Fisheries Research 229 (2020) 105607,
  22. Henrik Sparholt, Bjarte Bogstad, Villy Christensen, Jeremy Collie, Rob van Gemert, Ray Hilborn, Jan Horbowy, Daniel Howell, Michael C Melnychuk, Søren Anker Pedersen 2020.    Estimating Fmsy from an ensemble of data sources to account for density dependence in Northeast Atlantic fish stocks. ICES Journal of Marine Science, fsaa175,
  23. Haase K., Orio A., Pawlak J., Pachur M., Casini M. Diet of dominant demersal fish species in the Baltic Sea: Is flounder stealing benthic food from cod? 2020. MARINE ECOLOGY PROGRESS SERIES, Vol. 645: 159–170, 2020
  24. Heimbrand Y., Limburg KE., Hüssy K., Casini M., Sjöberg R., Palmén Brat A-M., Levinsky S-E., Karpushevskaia A., Radtke K., Öhlund J. 2020. Seeking the true time: Exploring otolith chemistry as an age-determination tool. J Fish Biol.; Vol. 97; No 2:552–565.
  25. McQueen K., Casini M., Dolk B., Haase S., Hemmer-Hansen J., Hilvarsson A., Hussy K., Mion M., Mohr T., Radtke K. Schade F. M., Schulz N. and Krumme U. 2020. Regional and stock-specific differences in contemporary growth of Baltic cod revealed through tagrecapture data. ICES Journal of Marine Science,
  26. Łopieńska-Biernat E., Stryiński R., Polak I., Pawlikowski B., Pawlak J., Podolska M. 2020. Effect of freezing on the metabolic status of L3 larvae of Anisakis simplex s. s. INFECTION, GENETICS AND EVOLUTION, Volume 82, 2020, 104312,
  27. Psuty I., Kulikowski T., Szymanek L. 2020.  Integrating small-scale fisheries into Polish maritime spatial planning. Marine Policy, 120, 104116
  28. Pawlak J (2021). In situ evidence of the role of Crangon crangon in infection of cod Gadus morhua with nematode parasite Hysterothylacium aduncum in the Baltic Sea. Parasitology , Volume 148 , Issue 13 , November 2021 , pp. 1691 – 1696 DOI:
  29. Psuty, I., Całkiewicz, J. 2021 Natural and social science approaches are both needed to manage bird bycatch in small‐scale fisheries. Aquatic Conservation: Marine and Freshwater Ecosystems 31(12): 3507-3525, DOI: 10.1002/aqc.3730
  30. Psuty, I., Zaucha, J., Mytlewski, A., Suska, M., Szymanek, L.  2021. The use of the contribution margin on the valorisation of polish fisheries for maritime spatial planning. Ocean & Coastal Management, 105751. DOI: 10.1016/j.ocecoaman.2021.105751
  31. Bernaś R., Wąs Barcz A., Árnyasi M., Dębowski P., Radtke G., Poćwierz Kotus A., Berrebi P. 2021. Evidence of unidirectional gene flow in a fragmented population of Salmo trutta L. Sci Rep 11, 23417 (2021).
  32. Mion, M., Haase, S., Hemmer-Hansen, J., Hilvarsson, A., Hüssy, K., Krüger-Johnsen, M., Krumme, U., McQueen, K., Plikshs, M., Radtke, K., Schade, F.M, Vitale, F. and Casini, M. (2021). Multidecadal changes in fish growth rates estimated from tagging data: A case study from the Eastern Baltic cod (Gadus morhua, Gadidae). Fish and Fisheries. 22, 413-427 doi:
  33. Hüssy, K., Krüger-Johnsen, M., Bernt Thomsen, T., Dominguez Heredia,  B., Naeraa, T., Limburg, K. E.,  Heimbrand, Y., McQueen, K., Haase, S., Krumme, U., Casini, M., Mion, M., and Radtke, K. 2021. It’s elemental, my dear Watson: validating seasonal patterns in otolith chemical chronologies. Canadian Journal of Fisheries and Aquatic Sciences. Vol. 78, No. 5, pp. 551–566, May 2021.
  34. Haase, S., McQueen, K.,  Mion, M., Andersson, M., Hilvarsson, A., Jakob Olesen, J., Svenson, A.,  Casini, M.,  Hüssy, K., Radtke, K., Krumme, U. 2021. Short-term tagging mortality of Baltic cod (Gadus morhua). 2021. Fisheries Research Volume 234, (February 2021), 105804.
  35. Skov, C., Hyder, K., Gundelund, C., Ahvonen, A., Baudrier, J., Borch, T., deCarvalho, S., Erzini, K., Ferter, K., Grati, F., van derHammen, T., Hinriksson, J., Houtman, R., Kagervall, A., Kapiris, K., Karlsson, M., Lejk, A. M., Lyle, J. M., Martinez-Escauriaza, R., Moilanen, P., Mugerza, E., Olesen, H. J., Papadopoulos, A., Pita, P., Pontes, J., Radford, Z., Radtke, K., Rangel, M., Sague´, O., Sande, H. A., Strehlow, H. V., Tutin, S.  R., Veiga, P., Verleye, T., Vřlstad, J. H., Watson, J. W., Weltersbach, M. S., Ustups, D., and Venturelli, P. A. 2021. Expert opinion on using angler Smartphone apps to inform marine fisheries management: status, prospects, and needs. ICES Journal of Marine Science. Volume 78, Issue 3, July 2021, Pages 967–978,
  36. Smoliński, S., Langowska, A., Głazaczow, A., (2021), Raised seasonal temperatures reinforce autumn Varroa destructor infestation in honey bee colonies, Scientific Reports 11, 22256,
  37. Behrens, J. W., Ryberg, Maria P., van Deurs, M., Eschbaum, R., Florin, A-B., Grygiel, W., Herrmann, J. P., Huwer, B., Knospina, E., Nõomaa, K., Oesterwind, D., Polte, P., Smoliński, S., Ustups, D., Ojaveer, H., (2021) Seasonal depth distribution and thermal experience of the non-indigenous round goby in the Baltic Sea: implications to key trophic relations, Biological Invasions,
  38. Denechaud, C., Geffen, A. J., Smoliński, S., Godiksen, J. A. (2021). Otolith “spawning zones” across multiple Atlantic cod populations: Do they accurately record maturity and spawning?, PLoS ONE, 16(9), e0257218,
  39. Lejk, A., Smoliński, S., Radtke, G., Martyniak, A., (2021), Higher growth variability and stronger responses to temperature changes in wild than hatchery-reared sea trout (Salmo trutta L.), Ecology and Evolution, 11, 10207–10224,   
  40. Siple, M. C., Koehn, L. E., Johnson, K. F., Punt, A. E., Canales, T. M., Carpi, P., de Moor, C. L., De Oliveira, J. A. A., Gao, J., Jacobsen, N. S., Lam, M. E., Licandeo, R., Lindegren, M., Ma, S., Óskarsson, G. J., Sanchez‐Maroño, S., Smoliński, S., Surma, S., Tian, Y., Tommasi, D., Gutiérrez T., M., Trenkel, V., Zador, S. G., Zimmermann, F., (2021), Considerations for management strategy evaluation for small pelagic fishes, Fish and Fisheries,
  41. Vabø, R., Moen, E., Smoliński, S., Husebø, Å., Handegard, N. O., Malde, K., (2021). Automatic interpretation of salmon scales using deep learning, Ecological Informatics, 101322,
  42. Smoliński, S., Denechaud, C., von Leesen, G., Godiksen, J. A., Geffen, A. J., Grønkjær, P., Campana, S. E., (2021), Differences in metabolic rate between two Atlantic cod (Gadus morhua) populations estimated with carbon isotopic composition in otoliths, PLoS ONE, 16(4):e0248711,
  43. Friedland, K., Bachman, M., Davies, A., Frelat, R., McManus, C., Morse, R., Pickens, B., Smoliński, S., Tanaka, K., (2021), Machine learning highlights the importance of primary and secondary production in determining habitat for marine fish and macroinvertebrates, Aquatic Conservation: Marine and Freshwater Ecosystems, 1-17, DOI:  
  44. Friedland, K., Smoliński, S., Tanaka, K., (2021), Contrasting patterns in the occurrence and biomass centers of gravity among fish and macroinvertebrates in a continental shelf ecosystem, Ecology and Evolution, 11:2050-2063
  45. Białowąs, M., Jonko-Sobuś, K., Pawlak, J., Polak-Juszczak, L., Dąbrowska, A., & Urban-Malinga, B. 2022. Plastic in digestive tracts and gills of cod and herring from the Baltic Sea. Science of The Total Environment, Vol. 822, 153333.
  46. Horbowy, J., & Hommik, K. 2022. Analysis of Fmsy in light of life-history traits—Effects on its proxies and length-based indicators. Fish and Fisheries, 00, 1–17.
  47. Nadolna-Ałtyn, K., Podolska, M., Pawlak, J., Szostakowska, B. 2022. Distribution of anisakid nematodes in the muscle tissue of cod (Gadus morhua) from the Norwegian Sea. Oceanologia. Available online 31 March 2022 In Press,
  48. Smoliński, S., Berg, F. 2022. Varying relationships between fish and scale size under changing environmental conditions – multidecadal perspective in Atlantic herring. Ecological Indicators, 134, 108494,

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