Konstantinos Tsagarakis

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Konstantinos Tsagarakis

Associate Researcher

Tel: +30-211-1065248
Fax: +30-211-1065256

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)

He has attended special training courses in ecosystem modelling, stock assessment, hydroacoustics.

He has research interests on Fish ecology, Hydroacoustics, Behaviour of small pelagic fish, Ecosystem modeling, Fisheries impacts, Discards.

He has participated in more than ten national and international projects.

He has participated in the organization of one Workshop. He serves in the Editorial Board of the Mediterranean Marine Science journal.

He has contributed 30 papers in peer-reviewed journals, 2 book chapters, as well as more than 60 other publications (i.e., conference proceedings, presentations in scientific Workshops etc) and co-authored more than 15 technical reports.


  • Papapanagiotou G., Tsagarakis K., Koutsidi M., Tzanatos E., In Press. 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 (https://www.sciencedirect.com/science/article/pii/S0272771419310285)
  • 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.(https://www.frontiersin.org/articles/10.3389/fmars.2019.00648/full)
  • 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 (https://link.springer.com/article/10.1007/s40152-018-00131-0)
  • 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.
  • 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.
  • Damalas, D., Ligas, A., Tsagarakis, K., Vassilopoulou, V., Stergiou, K.I., Kallianiotis, A., Sbrana, M., Maynou, F., In Press. 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. doi: 10.12681/mms.14195
  • Moutopoulos, D.K., Tsagarakis, K., Machias, A., In press. Assessing ecological and fisheries implications of the EU landing obligation in Eastern Mediterranean. Journal of Sea Research. doi: 10.1016/j.seares.2018.08.006
  • 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.
  • 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
  • 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
  • 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., Juan-Jordá, M. J., Bundy, A., Akoglu, A. G., Banaru, D., Boldt, J. L., Borges, M. F., Cook, A., Diallo, I., Fu, C., Fox, C., Gascuel, D., Gurney, L. J., Hattab, T., Heymans, J. J., Jouffre, D., Knight, B. R., Kucukavsar, S., Large, S. I., Lynam, C., Machias, A., Marshall, K. N., Masski, H., Ojaveer, H., Piroddi, C., Tam, J., Thiao, D., Thiaw, M., Torres, M. A., Travers-Trolet, M., Tsagarakis, K., Tuck, I., van der Meeren, G. I., Yemane, D., Zador, S. G., Shin, Y. J., 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.
  • 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