Short CV
- BSc in Biology, Department of Biology, school of Science, National and Kapodistrian University of Athens (1998-2003)
- MSc in Environmental Biology – Marine Biological Resources, Department of Biology, School of Sciences and Engineering, University of Crete (2003-2005)
- PhD in Marine Biological Resources, Department of Biology, School of Sciences and Engineering, University of Crete (2006-2011)
Konstantinos Tsagarakis, is a Main Researcher at the Institute of Marine Biological Resources and Inland Waters of the Hellenic Centre for Marine Research (HCMR). He holds a MSc degree in Marine Biology and a PhD degree in Fisheries Biology. His research interests include the study of small pelagic and mesopelagic fish ecology and distribution, fisheries discards, ecosystem approach to fisheries, food web modelling and climate impacts. He has coordinated two research projects in fisheries biology and ecology, he has acted as HCMR responsible, Task/WP leader, and/or project manager in nine EU and national projects and he has participated in more than 30 other projects. He has (co)authored more than 60 scientific publications in peer reviewed journals and more than 150 other publications (book chapters, conference and workshops proceedings, technical reports) in the above-mentioned fields.
Publications
- Sgardeli V., Papantoniou G., Tsoukali S., Liontakis A., Tsagarakis K., Vassilopoulou V., Giannoulaki M., In Press. The Eastern Ionian Demersal Fishery: Laying the foundation for Ecosystem Based Fisheries Management. ICES Journal of Marine Science.
- Quintela M., Mateos-Rivera A., Lille-Langøy R., Besnier F., Tsagarakis K., Rodríguez-Ezpeleta N., Bao-Domínguez M., Wiech M., Giulietti L., Rábade-Uberos S., Saborido-Rey F., Chlaida M., Strand E., Knutar S., García-Seoane E., Melle W., Axelsen B.-E., Glover K., In Press. Genetics in the ocean’s twilight zone: Population structure of the Mueller’s pearlside across its distribution range. Evolutionary Applications.
- Beukhof E., Uhlmann S.S., van der Reijden K.J., Anastasopoulou A., Altuna-Etxabe M., Astarloa A., Basurko O.C., Binch L., Bluemel J.K., Carbonara P., Dinesen G.E., Eigaard O.R., Festjens F., Girardin R., Halouani G., Kempf A., MacMillan I., Papadopoulou N., Potier M, Romagnoni G., Seghers S., Smith C.J., Spedicato M.T., Thorpe R.B., Tsagarakis K., Van Hoey G., Piet G., Reid D., Rindorf A., Brown E.J., 2026. From bycatch to litter: a systematic map of the ecological impacts of fishing in European seas. Reviews in Fish Biology and Fisheries 36, 9. doi: 10.1007/s11160-025-10013-4
- Papantoniou G., Sgardeli V., Vassilopoulou V., Tsagarakis K., 2025. Investigating the potential impacts and interactive effects of climate warming and multi-gear fishing on the Eastern Ionian Sea ecosystem using EwE and ecological indicators. Frontiers in Marine Science 12. doi: 10.3389/fmars.2025.1621603
- Alamanellis A., Kapelonis Z., Giannoulaki M., Raitsos D.E., Valavanis V.D., Tsagarakis K., 2025. Predicting the spatial distribution of the mesopelagic fish Maurolicus muelleri in the Eastern Mediterranean, utilizing ensemble modeling with acoustic measurements and environmental data. ICES Journal of Marine Science 82, fsaf178. doi: 10.1093/icesjms/fsaf178.
- Christou E.D., Dailianis T., Chatzinikolaou E., Karachle P.K., Damalas D., Tsagarakis K., Strogyloudi E., Karris G., Zervoudaki S., Giannakourou A., Salomidi M., Reizopoulou S., 2025. Climate change in the “vulnerable” Eastern Mediterranean and adjacent areas: A literature review of ecological impacts and threats. Marine Environmental Research 211, 107390. doi: 10.1016/j.marenvres.2025.107390
- Raptis N., Papantoniou G., Raitsos D.E., Damalas D., Tsagarakis K., 2025. Ecopath Modelling Unravels the Food Web of the Gulf of Corinth, a deep Mediterranean Important Marine Mammal Area. Deep-Sea Research Part I: Oceanographic Research Papers 218, 104466. doi: 10.1016/j.dsr.2025.104466
- Despoti S., Solanou M., Tsoukali S., Valavanis V., Tsagarakis K., Giannoulaki M., 2025. Uncovering Sea Turtle Strandings in the Greek Seas (Eastern Mediterranean Sea): Spatiotemporal Patterns and Signs of Anthropogenic Interaction. Aquatic Conservation: Marine and Freshwater Ecosystems 35, e70066. doi: 10.1002/aqc.70066
- Quintela M., García-Seoane E., Dahle G., Klevjer T., Melle W., Lille-Langøy R., Besnier F., Tsagarakis K., Geoffroy M., Rodríguez-Ezpeleta N., Jacobsen E., Côté D., Knutar S., Unneland L., Strand E., Glover K., 2024. Genetics in the ocean’s twilight zone: Population structure of the glacier lanternfish across its distribution range. Evolutionary Applications 17(11), e70032. doi: 10.1111/eva.70032
- Li Veli D., Baez Barrionuevo J.C., Bargione G., Barone G., Bdioui M., Carbonara P., Carpentieri P., Faim R. M., Follesa C., Gokce G., Mahmoud, H. H., Ligas A., Malouli Idrissi M., Moramarco G., Panayotova M., Petetta A., Sacchi J., Tsagarakis K., Virgili M., Lucchetti A., 2024. Assessing the vulnerability of sensitive species in Mediterranean fisheries: Insights from Productivity-Susceptibility Analysis (PSA). Frontiers in marine science 11, 1411033. doi: 10.3389/fmars.2024.1411033
- Badouvas Ν., Tsagarakis Κ., Somarakis S., Karachle P.K., 2024. Feeding habits and prey composition of six mesopelagic fish species from an isolated Central Mediterranean basin. Fishes 9, 277. doi: 10.3390/fishes9070277
- Roussos E., Triantaphyllidis G., Ilia V., Tsagarakis K., Machias A., Tziveleka L.-A., Roussis V., Ioannou E., Kotzamanis Y., 2024. Status of Fishery Discards and By-Products in Greece and Potential Valorization Scenarios towards a National Exploitation Master Plan. Marine Drugs 22(6), 264. doi: 10.3390/md22060264
- Tsagarakis K., Zupa W., Ligas A., Musumeci C., Tserpes G., Spedicato M.T., 2024. Factors affecting the variability of discards in Mediterranean bottom trawl fisheries. Fisheries Research 274, 106979. doi: 10.1016/j.fishres.2024.106979
- Dimarchopoulou D., Keramidas I., Tsagarakis K., Markantonatou V., Halouani G., Tsikliras A.C. 2024. Spatiotemporal fishing effort simulations and restriction scenarios in Thermaikos Gulf, Greece (northeastern Mediterranean Sea). Ocean and Coastal Management 247, 106914. doi: 10.1016/j.ocecoaman.2023.106914
- Despoti S., Stergiou K.I., Tserpes G., Tsagarakis K., Vassilopoulou V., Valavanis V., Adamidou A., Giannoulaki M., 2024. Can we gain new knowledge from the discarded fraction of the low value commercial species of the bottom trawl fishery? An insight into the Eastern Mediterranean (Aegean Sea, Greece). Hydrobiologia 851, 129–146. doi: 10.1007/s10750-023-05318-z
- Kapelonis Z, Siapatis A., Machias A., Somarakis S., Markakis K., Giannoulaki M., Badouvas N., Tsagarakis K., 2023. Seasonal patterns in the mesopelagic fish community and associated deep scattering layers of an enclosed deep basin. Scientific Reports 13, 17890. doi: 10.1038/s41598-023-44765-5
- Siapatis A., Markakis K., Tsagarakis K., 2023. First record of the Atlantic soft pout Melanostigma atlanticum(Teleostei, Zoarcidae) in the eastern Mediterranean Sea. Journal of the Marine Biological Association of the United Kingdom 103, e82. doi: 10.1017/S0025315423000681
- Papantoniou G., Zervoudaki S., Assimakopoulou G., Stoumboudi M.Th., Tsagarakis K., 2023. Ecosystem-level responses to multiple stressors using a time-dynamic food-web model: The case of a re-oligotrophicated coastal embayment (Saronikos Gulf, E Mediterranean). Science of The Total Environment 903, 165882. doi: 10.1016/j.scitotenv.2023.165882
- Badouvas N., Somarakis S., Tsagarakis K., 2022. Length–weight relations of 16 mesopelagic fishes (Actinopterygii: Myctophiformes and Stomiiformes) from the eastern Mediterranean Sea. Acta Ichthyologica et Piscatoria 52, 279–283. doi: 10.3897/aiep.52.97577
- Bastardie F., Feary D. A., Brunel T., Kell L.T., Doering R., Metz S., Eigaard O.R., Basurko O. C., V. Bartolino, Bentley J.W., Benoit B., Bossier S., Brooks M. E., Caballero A., Citores L., Daskalov G. M., Depestele J., Gabiña G., Aranda M., Hamon K. G., Hidalgo M., Katsanevakis S., Kempf A., Kühn B., Nielsen J. R., Püts M., Taylor M., Triantaphyllidis G., Tsagarakis K., Urtizberea A., Van Hoof L., Van Vlasselaer J. 2022. Ten lessons on the resilience of the EU Common Fisheries Policy -A call for adaptive, flexible and well-informed fisheries management in EU facing climate change and fuel use reduction targets. Frontiers in Marine Science 9, 947150. doi: 10.3389/fmars.2022.947150
- Tsagarakis K., Libralato S., Giannoulaki M., Touloumis K., Somarakis S., Machias A., Frangoulis C., Papantoniou G., Kavadas S., Stoumboudi M.Th., 2022. Drivers of the North Aegean Sea ecosystem (Eastern Mediterranean) through time: insights from multidecadal retrospective analysis and future simulations. Frontiers in Marine Science 9, 919793. doi: 10.3389/fmars.2022.919793
- Sarropoulou X., Tsaparis D., Tsagarakis K., Badouvas N., Tsigenopoulos C.S., 2022. Contrasting patterns of genetic diversity of three mesopelagic fishes in the Greek Seas. Mediterranean Marine Science 23, 536-545. doi: 10.12681/mms.28567
- Dimarchopoulou D., Tsagarakis K., Sylaios G., Tsikliras A.C., 2022. Ecosystem trophic structure and fishing effort simulations of a major fishing ground in the northeastern Mediterranean Sea (Thermaikos Gulf). Estuarine Coastal Shelf Science 264, 107667. doi: 10.1016/j.ecss.2021.107667
- Petriki O., Moutopoulos D. K., Tsagarakis K., Tsionki I., Papantoniou G., Mantzouni I., Barbieri R., Stoumboudi M., 2021. Assessing ecosystem trade-offs and fisheries-induced effects on the largest Greek lake (Lake Trichonis). Water 13, 3329. doi: 10.3390/w132333299
- Papantoniou G., Giannoulaki M., Stoumboudi M. Th., Lefkaditou E., Tsagarakis K., 2021. Food web interactions in a human dominated Mediterranean coastal ecosystem. Marine Environmental Research, 172, 105507. doi: 10.1016/j.marenvres.2021.105507
- Leonori I., Ticina V., Giannoulaki M., Hattab T., Iglesias M., Bonanno A., Constantini I., Canduci G., Machias A., Ventero A., Somarakis S., Tsagarakis K., Bogner D., Barra M., Basilone G., Genovese S., Juretic T., Gasparevic D., De Felice A., 2021. The history of acoustic surveys in the Mediterranean Sea. Mediterranean Marine Science 22, 751-768. doi: 10.12681/mms.26001
- Tsagarakis K., Siapatis A., Badouvas N. 2021. First record of Bathophilus nigerrimus Giglioli, 1882 in the Greek Seas. In: Tsagarakis et al., 2021. New records of rare species in the Mediterranean Sea (October 2021). Mediterranean Marine Science 22, 627-652. doi: 10.12681/mms.26669
- Despoti, S., Stergiou K.I., Machias A., Vassilopoulou V., Tsagarakis K., Valavanis V., Adamidou A., Giannoulaki M., 2021. Assessing the spatial distribution of five non-commercial fish species in the Aegean Sea (Greece, eastern Mediterranean Sea) based on discards data. Regional Studies in Marine Science 44, 101736. doi: 10.1016/j.rsma.2021.101736
- Tsagarakis, K., Panigada S., Machias A., Giannoulaki M., Foutsi A., Pierantonio N., Paximadis G., 2021. Trophic interactions in the “small pelagic fish – dolphins – fisheries” triangle: Outputs of a modelling approach in the North Aegean Sea (Eastern Mediterranean, Greece). Ocean and Coastal Management 204, 105474. doi: 10.1016/j.ocecoaman.2020.105474
- Despoti, S., Milisenda, G., Ligas, A., Bentes, L., Maynou, F., Vitale, S., Garofalo, G., Sbrana, M., Erzini, K., Tserpes, G., Tsagarakis, K., Maina, I., Pyrounaki, M.-M., Papadopoulou, N., Machias, A., Colloca, F., Fiorentino, F., Stergiou, K.I., Giannoulaki, M., 2020, Marine spatial closures as a supplementary tool to reduce discards in bottom trawl fisheries: Examples from southern European waters. Fisheries Research 232, 105714. doi: 10.1016/j.fishres.2020.105714
- Papapanagiotou, G., Tsagarakis, K., Koutsidi, M., Tzanatos, E., 2020. Using traits to build and explain an ecosystem model: Ecopath with Ecosim modelling of the North Aegean Sea (eastern Mediterranean). Estuarine Coastal and Shelf Science 236, 106614. doi: doi.org/10.1016/j.ecss.2020.106614
- Dimarchopoulou, D., Keramidas, I., Tsagarakis, K., Tsikliras, A.C., 2019. Ecosystem Models and Effort Simulations of an Untrawled Gulf in the Central Aegean Sea. Frontiers in Marine Science, 6: 648. doi: 10.3389/fmars.2019.00648
- Stithou, M., Vassilopoulou, V., Tsagarakis, K., Edridge, A., Machias, A., Maniopoulou, M., Dogrammatzi, A., Bellido, J.M., Carbonara, P., Carbonell, A., Lembo, G., 2019. Discarding in Mediterranean trawl fisheries—a review of potential measures and stakeholder insights. Maritime Studies 18(2), 225-238. doi: 10.1007/s40152-018-00131-0
- Moutopoulos, D.K., Tsagarakis, K., Machias, A., 2018. Assessing ecological and fisheries implications of the EU landing obligation in Eastern Mediterranean. Journal of Sea Research 141, 99-111. doi: 10.1016/j.seares.2018.08.006
- Damalas, D., Ligas, A., Tsagarakis, K., Vassilopoulou, V., Stergiou, K.I., Kallianiotis, A., Sbrana, M., Maynou, F., 2018. The “discard problem” in Mediterranean fisheries, in the face of the European Union landing obligation: the case of bottom trawl fishery and implications for management. Mediterranean Marine Science 19, 459-476. doi: 10.12681/mms.14195
- Moutopoulos, D.K., Stoumboudi, M.T., Ramfos, A., Tsagarakis, K., Gritzalis, K.C., Petriki, O., Patsia, A., Barbieri, R., Machias, A., Stergiou, K.I., Bobori, D.C., 2018. Food web modelling on the structure and functioning of a Mediterranean lentic system. Hydrobiologia 822, 259–283. doi: 10.1007/s10750-018-3685-x
- Maina, I., Kavadas, S., Machias, A., Tsagarakis, K., Giannoulaki, M. 2018. Modelling the spatiotemporal distribution of fisheries discards: A case study on eastern Ionian Sea trawl fishery. Journal of Sea Research, 139, 10-23. doi: 10.1016/j.seares.2018.06.001
- Tsagarakis, K., Nikolioudakis, N., Papandroulakis, N., Vassilopoulou, V., Machias, A. 2018. Preliminary assessment of discards survival in a multi‐species Mediterranean bottom trawl fishery. Journal of Applied Ichthyology 34, 842-849. doi: 10.1111/jai.13691
- Tsagarakis, K., Carbonell, A., Brčić, J., Bellido, J., Carbonara, P., Casciaro, L., Edridge, A., García, T., González, M., Krstulović Šifner, S., Machias, A., Notti, E., Papantoniou, G., Sala, A., Škeljo, F., Vitale, S., Vassilopoulou, V., 2017. Old Info for a New Fisheries Policy: Discard Ratios and Lengths at Discarding in EU Mediterranean Bottom Trawl Fisheries. Frontiers in Marine Science 4, 99. doi: 10.3389/fmars.2017.00099
- Bundy, A., Chuenpagdee, R., Boldt, J. L., de Fatima Borges, M., Camara, M. L., Coll, M., Diallo, I., Fox, C., Fulton, E. A., Gazihan, A., Jarre, A., Jouffre, D., Kleisner, K. M., Knight, B., Link, J., Matiku, P. P., Masski, H., Moutopoulos, D. K., Piroddi, C., Raid, T., Sobrino, I., Tam, J., Thiao, D., Torres, M. A., Tsagarakis, K., van der Meeren, G. I., Shin, Y.-J., 2017. Strong fisheries management and governance positively impact ecosystem status. Fish and Fisheries 18, 412–439 doi: 10.1111/faf.12184.
- Machias A., Tsagarakis K., Matsaganis M., 2016. Greek fisheries and the economic crisis: structural analogies. Ethics in Science and Environmental Politics 16, 19-23.
- Coll, M., Shannon, L. J., Kleisner, K. M., et al., 2016. Ecological indicators to capture the effects of fishing on biodiversity and conservation status of marine ecosystems. Ecological Indicators 60, 947-962.
- Tsagarakis, K., Başusta, N., Başusta, A., Biandolino, F., Bostancı, D., Buz, K., Djodjo, Ž., Dulčić, J., Gökoğlu, M., Gücü, A. C., Machias, A., Maravelias, C. D., Özvarol, Y., Polat, N., Prato, E., Vasilakopoulos, P., Yedier, S., 2015. New Fisheries-related data from the Mediterranean Sea (October, 2015). Mediterranean Marine Science 16, 703-713.
- Crise A., Kaberi, H., Ruiz, J., et al 2015. A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas: The PERSEUS experience. Marine Pollution Bulletin 95, 28-39.
- Kleisner K. M., Coll M., Lynam C. P., Bundy A., Shannon L., Shin Y.-J., Boldt J. L., Borges M. F., Diallo I., Fox C., Gascuel D., Heymans J. J., Juan Jorda M. J., Jouffre D., Large S. I., Marshall K. N., Ojaveer H., Piroddi C., Tam J., Torres M. A., Travers-Trolet M., Tsagarakis K., Van Der Meeren G. I., Zador S., 2015. Evaluating changes in marine communities that provide ecosystem services through comparative assessments of community indicators. Ecosystem Services 16, 413-429. doi: 10.1016/j.ecoser.2015.02.002
- Tsagarakis K., Giannoulaki M., Pyrounaki M. M., Machias A. 2015. Species identification of small pelagic fish schools by means of hydroacoustics in the Eastern Mediterranean Sea. Mediterranean Marine Science 16, 151-161.
- Halouani, G., Gascuel, D., Hattab, T., Lasram, F. B. R., Coll, M., Tsagarakis, K., Piroddi, C., Romdhane, M. S., Le Loc’h, F. 2015. Fishing impact in Mediterranean ecosystems: an EcoTroph modeling approach. Journal of Marine Systems 150(0), 22-33.
- Tsagarakis K., Palialexis A., Vassilopoulou V., 2014. Mediterranean fishery discards: review of the existing knowledge. ICES Journal of Marine Science 71 1219-1234
- Tsagarakis K., Mytilineou Ch., Haralabous J., Lorance P., Politou C.-Y., Dokos J., 2013. Mesoscale spatio-temporal dynamics of demersal assemblages of the Eastern Ionian Sea in relationship with natural and fisheries factors. Aquatic Living Resources 26, 381-397
- Mytilineou Ch., Tsagarakis K., Bekas P., Anastasopoulou A., Kavadas S., Machias A., Haralabous J., Smith C.J., Petrakis G., Dokos J., Kapandagakis A., 2013. Spatio-temporal distribution and aspects of the life history of blackspot seabream Pagellus bogaraveo (Brünnich 1768) (Osteichtyes: Sparidae) from the Eastern Mediterranean. Journal of Fish Biology 83, 1551-1575
- Giannoulaki, M., Iglesias, M., Tugores, P., Bonanno, A., Patti, B., De Felice, A., Leonori, I., Bigot, J.L., Ticina, V., Pyrounaki, M., Tsagarakis, K., Machias, A., Somarakis, S., Schismenou, E., Quinci, E., Basilone, G., Cuttitta, A., Campanella, F., Miquel, J., Onate, D., Roos, D., Valavanis, V., 2013. Characterising the potential habitat of European anchovy Engraulis encrasicolus in the Mediterranean Sea, at different life stages. Fisheries Oceanography 22, 69-89
- Tsagarakis K., Pyrounaki M. M., Giannoulaki M., Somarakis S., Machias A. 2012. Ontogenetic shift in the schooling behaviour of sardine (Sardina pilchardus). Animal Behaviour 84, 437-443.
- Tsagarakis K., Vassilopoulou, V., Kallianiotis, A., Machias, A. 2012. Discards of the purse seine fishery targeting small pelagic fish in the Eastern Mediterranean Sea. Scientia Marina 76, 561-572
- Tsagarakis K., Giannoulaki M., Somarakis S., Machias A. 2012. Variability in positional, energetic and morphometric descriptors of European anchovy (Engraulis encrasicolus) schools related to patterns of diurnal vertical migration. Marine Ecology Progress Series 446, 243-258
- Tugores M.P., Giannoulaki M., Iglesias M., Bonanno A., Ticina V., Leonori I., Machias A., Tsagarakis K., Diaz N., Giraldez A., Patti B., De Felice A., Basilone G., Valavanis V.D. 2011. Habitat suitability modeling for sardine Sardina pilchardus in a highly diverse ecosystem: the Mediterranean Sea. Marine Ecology Progress Series 443, 181-205
- Giannoulaki M., Pyrounaki M. M., Liorzou B., Leonori I., Valavanis D. V., Tsagarakis K Bigot J.L., Roos D., De Felice A., Campanella F., Somarakis S., Arneri E., Machias A. 2011. Habitat suitability modelling for sardine(Sardina pilchardus) juveniles in the Mediterranean Sea. Fisheries Oceanography 20, 367-382
- Tsagarakis K., Coll M., Giannoulaki M., Somarakis S., Papaconstantinou C., Machias A. 2010. Food-web traits of the North Aegean Sea ecosystem (Eastern Mediterranean, Greece) and comparison with other Mediterranean ecosystems. Estuarine, Coastal and Shelf Science 88, 233-248
- Tsagarakis K., A. Machias, S. Somarakis, M. Giannoulaki, A. Palialexis, C. Papaconstantinou, V., Valavanis, 2008. Habitat discrimination of juvenile sardines in the Aegean Sea using remote sensing environmental data, Hydrobiologia 612, 215-223
- Giannoulaki M, Valavanis DV, Palialexis A, Tsagarakis K, Machias A, Somarakis S, Papaconstantinou C, 2008. Modelling the presence of anchovy Engraulis encrasicolus in the Aegean Sea during early summer, based on satellite environmental data. Hydrobiologia 612, 225–240
- Tsagarakis K., A. Machias, M. Giannoulaki, S. Somarakis, I. Karakassis, 2008. Seasonal and temporal Trends in metrics of fish community for otter – trawl discards in a Mediterranean ecosystem, ICES Journal of Marine Science 65, 539-550