Athanassios Machias

Scientific publications (Jan – 2026):

178 publications in peer-reviewed journals, Citations: 4720, h index: 42 (source: Google Scholar)

• https://scholar.google.gr/citations?user=FezXOyYAAAAJ&hl=en
• https://www.scopus.com/authid/detail.uri?authorId=7006026887

 (source: Scopus: 86 publications, Citations:  2943, h index: 35)

Research projects

• 1987 – 1989. Assessment of pelagic fish resources in the Aegean and Ionian Sea by hydroacoustic survey methods (Phase I, North Aegean). FISHPOP. NATO Science For Stability
• 1987 – 1994. Demersal stocks of Crete. National project. Ministry of Agriculture.
• 1989 – 1990. Assessment of pelagic fish resources in the Aegean and Ionian sea by hydroacoustic survey
• methods (Phase II, Central Aegean). EU project
• 1989 – 1991 Distribution of small pelagic fish in Aegean Sea. National project. Ministry of Agriculture. (αρ. 8687709).
• 1991-1993. “National management system of Marine Resources” STRIDE HELLAS 153. National project
• 1992 – 1994. “Improvement of measurement methods and techniques in hydroacoustic surveys for reliable biomass estimates of target species of small pelagic fish in Mediterranean”. MA-3-768/I,GR/91. EU Project
• 1992 – 1995. “Evaluation of anchovy stocks in Aegean sea” XIV-1/MED/GR/91/011. EU Project
• 1992-1995: Πρόγραμμα AQUΑQLEX. EU Project LΙΝGUA
• 1993 – 1994: “Seminaire de formation sur l’ evaluation des stocks en Mer Egee et enMediterranie Orientale”. No XIV-1/Med/93/024. EU Project.
• “Collection and management of data from commercial fisheries in Greece”, National project
• Coordinator IMBC, partners NCMR, FRI.
• 2003-2007: IMAS-FISH F6 25 Development of an Integrated Management System to support the sustainability of Greek Fisheries resources. (2003-2006) Funded by Greek General Secretary for Research and Technology
• 2006-2008: Comparison of anchovy population in Aegean and Adriatic (MonteNegro) Sea. Intereg project 2005 ΣΕ 01330040 (Γ.Γ.E.Τ).
• 2007-2011 Fish Reproduction and Fisheries. European Cooperation in the field of Scientific and Technical Research – COST Action FA0601. EU project
• 2009-2011. PREVENT ESCAPE. Assessing the causes and developing measures to prevent the escape of fish from sea-cage aquaculture. EU project
• 2009-2011. REPROdUCE. Understanding recruitment processes using coupled biophysical models of the pelagic ecosystem.
• 2010-2012: “AcousMed: Harmonization of the acoustic data in the Mediterranean 2002-2006” EU funded- DG MARE
• 2011-2013: “ Mediseh: Mediterranean Sensitive Habitats” EU funded-DG MARE
• 2018-2021.”MESOBED”. MESOpelagic fish: Biology, Ecological role and Distribution of a disregarded trophic link” Funded by Ministry of education Role: Participant
• 2020-2021. “HellasFish Project; Stage 1-Mapping”. Marine Stewardship Council. Funded by MAVA Foundation, A.G. Leventis Foundation. Role: Participant
• 2020-2021. MedBLand: -“Synthesis of the landing obligation measures and discard rates for the Mediterranean and the Black Sea”. EASME/EMFF/2019/1.3.2.6/ SI2.835464. COISPA (Coordiantor: Μ.Τ. Spedicato), CIBM, HCMR, IOF, IO_BAS, NIMRD, NISEA, University of Alicante, Role: Participant
• 2018-2021. Gyaros MPA fisheries knowledge survey: assessing a pristine Mediterranean biodiversity hotspot. MAVA CONTRACT 17114, Mediterranean Basin C7/2017 Role: Participant
• 2018-2021. “VIOAXIOPIO – Exploiting Fish By-Products», http://www.vioaxiopoio.gr/en/ – National Project funded by the Ministry of Economy and Development Role: Participant
• 2017-2021: «ANATHALLOI – Development of management tools for marine and lake ecosystems», https://hcmr-imbriw.wixsite.com/anathalloi National Project funded by the Ministry of Economy and Development – Role: Participant
• 2020-2026. “National fisheries data collection program”. HCMR and FRI (Kavala). Funded by the Greek Ministry of Agriculture and EC. Role: Participant.

 Responsible, Coordinator

• 1994- 1996: “Analysis of the trawls’ discard operation in the Central and Eastern Mediterranean sea.” Project n MED 94/065, GR, I. Coordinator, EU Project
• 1996-1998: “Analysis of the trawls’ discard operation in the Central and Eastern Mediterranean sea.” Project 95-061, 95/C 76/15. GR, I. Coordinator, EU Project
• 1998-2000: “Analysis of the trawls’ discard operation in the Central and Eastern Mediterranean sea.” Project 97-0044. Coordinator, EU Project.
• 1998- 2000: “Evaluation of the Southern Greek anchovy stocks” Project 97-0048. Coordinator, EU Project.
• 1999- 2001: “Evaluation of the Southern Greek sardine stocks” Project 98-039 Coordinator EU Project.
• 1999- 2001: “State of the stocks of European wreckfish, Polyprion Americanus” Project 98-041. Coordinator, EU Project
• 2000- 2003: “AQCESS”: Aquaculture and Coastal Economic and Social Sustainability EU-DG XII (Quality of Life QLRT 99 – 31151)
• 2001 – 2003 “Patterns and propensities in Greek fishing effort and catches”. DG XIV, Project 00/018 67,422 EURO requested for IMBC. Coordinator, EU Project
• 2003-2007: National fisheries data collection program”. HCMR and FRI (Kavala). Funded by the Greek Ministry of Agriculture and EC. HCMR budget: 9800000 €. Role: Scientific responsible for HCMR together with Dr. K PapaconstantinouG. Tserpes.
• 2002-2006 INNOMAR: Innovative methods for the sustainable management of marine biological resources. Innovative Actions ERDF 2000-2006. INNOMAR
• 2004-2006 «Management of the Messara gulf” National project, Ministry of Agriculture 150.000 euros
• 2004-2006 «Management of the Paleochora gulf” National project, Ministry of Agriculture 150.000 euros
• 2007- 2010. SARDONE Improving assessment and management of small pelagic species in the Mediterranean. STREP project; SSP8; Contract No 044294, IMRIW Coordinator.
• 2012-2015 ECODISC, Ecosystem effects of fisheries discards; project no 4794, Operational Program “Education and Lifelong Learning”. Coordinator
• 2015-2017. Anoxic layers in Amvrakikos gulf, Description, management, distribution and abundance of small pelagic fish
• 2017-2022. “REPHIL”. • Hellenic Research Fleet- Reconstruction and Modernization of Research Vessel (RV) “PHILIA”. funded by the Operational Program (OP) “Competitiveness Entrepreneurship and Innovation” (NSRF) co-financed by the European Regional Development Fund (ERDF). Role: Coordinator (budget 3.133.006,4 €)
• 2014-2019. “National fisheries data collection program”. HCMR and FRI (Kavala). Funded by the Greek Ministry of Agriculture and EC. HCMR budget: 9800000 €. Role: Scientific responsible for HCMR together with Dr. G. Tserpes.

  Indicative publications in International, peer-reviewed journals:

• Spondylidis S., Giannoulaki M., Machias A., Batzakas I., Topouzelis K. 2024. A geospatial web service for small pelagic fish spatial distribution modeling and mapping with remote sensing. Remote Sensing Applications Society and Environment, 36, 101322
• 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
• 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(1), 17890
• Spondylidis S.; Giannoulaki M.; Machias A.; Batzakas I.; Topouzelis K. 2023. Can we actually monitor the spatial distribution of small pelagic fish based on Sentinel-3 data? An example from the North Aegean Sea (Eastern Mediterranean Sea). Frontiers in Marine Science, 10, 1117704
• Tsagarakis K.; Libralato S.; Giannoulaki M.; Touloumis K.; Somarakis S.; Machias A.; Frangoulis C.; Papantoniou G.; Kavadas S.; Stoumboudi M.T .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
• Sofoulaki K.; Kalantzi I.; Zeri C.; Machias A.; Pergantis S.A.; Tsapakis M. 2022. Sardine and anchovy as bioindicators of metal content in Greek coastal waters. Mediterranean Marine Science, 23(3), 546-560
• 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
• M Barra, A Bonanno, T Hattab, C Saraux, M Iglesias, I Leonori, V Ticina, G Basilone, A DE Felice, R Ferreri, A Machias, A Ventero, I Costantini, T Juretic, M MPyrounaki, J-H Bourdeix, D Gasparevic, Z Kapelonis, G Canduci, M Giannoulaki. 2021. Effects of sampling intensity and biomass levels on the precision of acoustic surveys in the Mediterranean Sea. Mediterranean Marine Science 22 (4), 769-783
• T Hattab, A Gucu, A Ventero, A De Felice, A Machias, C Saraux, D Gasparevic, G Basilone, I Costantini, I Leonori, J-H Bourdeix, M Iglesias, M Barra, M Giannoulaki, R Ferreri, S El Ayoubi, S Malavitu, S Genovese, S Somarakis, T Juretic, V Ticina, G Certain. 2021. Temperature strongly correlates with regional patterns of body size variation in Mediterranean small pelagic fish species, Mediterranean Marine Science 22 (4), 800-811
• I Leonori, V Ticina, M Giannoulaki, T Hattab, M Iglesias, A Bonanno, I COSTANTINI, G Canduci, A Machias, A Ventero, S Somarakis, K Tsagarakis, D Bogner, M Barra, G Basilone, S Genovese, T Juretic, D Gasparevic, A DE Felice. 2021. The history of hydroacoustic surveys on small pelagic fishes in the European Mediterranean Sea, Mediterranean Marine Science 22(4), 751-768S
• Despoti, K I Stergiou, A Machias, V Vassilopoulou, K Tsagarakis, V Valavanis, A Adamidou, MGiannoulaki. 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 (1-9)
• K Tsagarakis, S Panigada, A Machias, M Giannoulaki, A Foutsi, N Pierantonio, G Paximadis. 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 & Coastal Management 204, 105474
• S Despoti, G Milisenda, A Ligas, L Bentes, F Maynou, S Vitale, G Garofalo, M Sbrana, KErzini, G Tserpes, K Tsagarakis, I Maina, M-M Pyrounaki, N Papadopoulou, A Machias, F Colloca, F Fiorentino, K I Stergiou, M Giannoulaki. 2021. Marine spatial closures as a supplementary tool to reduce discards in bottom trawl fisheries: examples from southern European waters, Fisheries Research 232, 105714
• P Koulouri, M Giannoulaki, A Machias, C Dounas. 2019. Measures for the Protection and Sustainable Exploitation of Marine Biological Resources in an Oligotrophic Fishing Ground (Crete Island, Greece, E. Mediterranean). Euro-Mediterranean Conference for Environmental Integration, 2197-2201
• M Stithou, V Vassilopoulou, K Tsagarakis, A Edridge, A Machias, M Maniopoulou, A Dogrammatzi, JM Bellido, P Carbonara, A Carbonell, G Lembo. 2019. Discarding in Mediterranean trawl fisheries—a review of potential measures and stakeholder insights. Maritime Studies 18 (2), 225-238
• K Sofoulaki, I Kalantzi, A Machias, SA Pergantis, M Tsapakis. 2019. Metals in sardine and anchovy from Greek coastal areas: Public health risk and nutritional benefits assessment. Food and chemical toxicology 123, 113-124
• Sofoulaki, I. Kalantzi, A. Machias, M. Mastoraki, S. Chatzifotis, K. Mylona, S. A Pergantis, M. Tsapakis. 2019. Metals and elements in sardine and anchovy: species specific differences and correlations with proximate composition and size. Science of the Total Environment 645, 329-338
• G Karris, V Ketsilis-Rinis, A Kalogeropoulou, S Xirouchakis, A Machias, I Maina, S Kavadas. 2018. The use of demersal trawling discards as a food source for two scavenging seabird species: a case study of an eastern Mediterranean oligotrophic marine ecosystem. Avian Research 9 (1), 1-14
• DK Moutopoulos, K Tsagarakis, A Machias. 2018. Assessing ecological and fisheries implications of the EU landing obligation in Eastern Mediterranean. Journal of Sea Research 141, 99-111
• DK Moutopoulos, MT Stoumboudi, A Ramfos, K Tsagarakis, KC Gritzalis, O Petriki, A Patsia, R Barbieri, A Machias, KI Stergiou, DC Bobori. 2018. Food web modelling on the structure and functioning of a Mediterranean lentic system. Hydrobiologia 822 (1), 259-283
• I Maina, S Kavadas, A Machias, K Tsagarakis, M Giannoulaki. 2018. Modelling the spatiotemporal distribution of fisheries discards: a case study on eastern Ionian Sea trawl fishery. Journal of Sea Research 139, 10-23.
• K Tsagarakis, N Nikolioudakis, N Papandroulakis, V Vassilopoulou, A Machias. 2018. Preliminary assessment of discards survival in a multi‐species Mediterranean bottom trawl fishery. Journal of Applied Ichthyology 34 (4), 842-849
• Giannoulaki, M., Pyrounaki, M.M., Bourdeix, J.-H., Abdallah, L.B., Bonanno, A., Basilone, G., Iglesias, M., Ventero, A., De Felice, A., Leonori, I., Valavanis, V.D., Machias, A., Saraux, C. 2017. Habitat suitability modeling to identify the potential nursery grounds of the Atlantic mackerel and its relation to oceanographic conditions in the Mediterranean Sea, Frontiers in Marine Science, 4(JUL), 230
• Tsagarakis, K., Carbonell, A., Brčić, J., Bellido, J.M., Carbonara, P., Casciaro, L., Edridge, A., García, T., González, M., Šifner, S.K., 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(APR), 99
• Koutsidi, M., Tzanatos, E., Machias, A., Vassilopoulou, V. 2016. Fishing for function: The use of biological traits to evaluate the effects of multispecies fisheries on the functioning of fisheries assemblages, ICES Journal of Marine Science, 73(4), 1091-1103
• Machias, A., Tsagarakis, K., Matsaganis, M. 2016. Greek fisheries and the economic crisis: Structural analogies, Ethics in Science and Environmental Politics, 16(1), 19-23
• Stergiou, K.I., Somarakis, S., Triantafyllou, G., Tsiaras, K.P., Giannoulaki, M., Petihakis, G., Machias, A., Tsikliras, A.C. 2016. Trends in productivity and biomass yields in the Mediterranean Sea Large Marine Ecosystem during climate change, Environmental Development, 17, 57-74
• 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
• Politikos, D., Somarakis, S., Tsiaras, K.P., Giannoulaki, M., Petihakis, G., Machias, A., Triantafyllou, G. 2015. Simulating anchovy’s full life cycle in the northern Aegean Sea (eastern Mediterranean): A coupled hydro-biogeochemical-IBM model, Progress in Oceanography, 138, 399-416
• Barra, M., Petitgas, P., Bonanno, A., Somarakis, S., Woillez, M., Machias, A., Mazzola, S., Basilone, G., Giannoulaki, M. 2015. Interannual changes in biomass affect the spatial aggregations of anchovy and sardine as evidenced by Geostatistical and spatial indicators, PLoS ONE, 10(8), e0135808

• Crise, A., Kaberi, H., Ruiz, J., Zatsepin, A., Arashkevich, E., Giani, M., Karageorgis, A.P., Prieto, L., Pantazi, M., Gonzalez-Fernandez, D., Ribera d’Alcalà, M., Tornero, V., Vassilopoulou, V., Durrieu de Madron, X., Guieu, C., Puig, P., Zenetos, A., Andral, B., Angel, D., Altukhov, D., Ayata, S.D., Aktan, Y., Balcioğlu, E., Benedetti, F., Bouchoucha, M., Buia, M.-C., Cadiou, J.-F., Canals, M., Chakroun, M., Christou, E., Christidis, M.G., Civitarese, G., Coatu, V., Corsini-Foka, M., Cozzi, S., Deidun, A., Dell’Aquila, A., Dogrammatzi, A., Dumitrache, C., Edelist, D., Ettahiri, O., Fonda-Umani, S., Gana, S., Galgani, F., Gasparini, S., Giannakourou, A., Gomoiu, M.-T., Gubanova, A., Gücü, A.-C., Gürses, T., Hanke, G., Hatzianestis, I., Herut, B., Hone, R., Huertas, E., Irisson, J.-O., Işinibilir, M., Jimenez, J.A., Kalogirou, S., Kapiris, K., Karamfilov, V., Kavadas, S., Keskin, Ç., Kideyş, A.E., Kocak, M., Kondylatos, G., Kontogiannis, C., Kosyan, R., Koubbi, P., Kušpilić, G., La Ferla, R., Langone, L., Laroche, S., Lazar, L., Lefkaditou, E., Lemeshko, I.E., Machias, A., Malej, A., Mazzocchi, M.-G., Medinets, V., Mihalopoulos, N., Miserocchi, S., Moncheva, S., Mukhanov, V., Oaie, G., Oros, A., Öztürk, A.A., Öztürk, B., Panayotova, M., Prospathopoulos, A., Radu, G., Raykov, V., Reglero, P., Reygondeau, G., Rougeron, N., Salihoglu, B., Sanchez-Vidal, A., Sannino, G., Santinelli, C., Secrieru, D., Shapiro, G., Simboura, N., Shiganova, T., Sprovieri, M., Stefanova, K., Streftaris, N., Tirelli, V., Tom, M., Topaloğlu, B., Topçu, N.E., Tsagarakis, K., Tsangaris, C., Tserpes, G., Tuğrul, S., Uysal, Z., Vasile, D., Violaki, K., Xu, J., Yüksek, A., Papathanassiou, E. 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(1), 28-39
• Stergiou, K.I., Machias, A. 2015. Nailing down ‘academic’ freedom and tenure in Greek research institutions, Ethics in Science and Environmental Politics, 15(1), 59-62
• Tsagarakis, K., Başusta, N., Başusta, A., Biandolino, F., Bostanci, D., Buz, K., Djodjo, Z., 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(3), 703-713
• Tsagarakis, K., Giannoulaki, 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(1), 151-161
• Bonanno, A., Giannoulaki, M., Barra, M., Basilone, G., Machias, A., Genovese, S., Goncharov, S., Popov, S., Rumolo, P., Bitetto, M.D., Aronica, S., Patti, B., Fontana, I., Giacalone, G., Ferreri, R., Buscaino, G., Somarakis, S., Pyrounaki, M.-M., Tsoukali, S., Mazzola, S. 2014. Habitat selection response of small pelagic fish in different environments. Two examples from the oligotrophic Mediterranean Sea, PLoS ONE, 9(7), e101498
• Karachle, P.K., Machias, A. 2014. First confirmed record of Petromyzon marinus Linnaeus, 1758 from west Greece, Cahiers de Biologie Marine, 55(3), 367-370
• Giannoulaki, M., Ibaibarriaga, L., Antonakakis, K., Uriarte, A., Machias, A., Somarakis, S., Sanchez, S., Roel, B.A. 2014. Applying a two-stage Bayesian dynamic model to a short-lived species, the anchovy, in the Aegean Sea (Eastern Mediterranean). comparison with an integrated catch at age stock assessment model, Mediterranean Marine Science, 15(2), 350-365
• Machias, A., Pyrounaki, M.M., Leonori, I., Basilone, G., Iglesias, M., de Felice, A., Bonanno, A., Giannoulaki, M. 2013. Catch of pelagic hauls in Mediterranean acoustic surveys: Is it the same between day and night?, Scientia Marina, 77(1), 69-79
• Giannoulaki, M., Iglesias, M., Tugores, M.P., Bonanno, A., Patti, B., De Felice, A., Leonori, I., Bigot, J.L., Tičina, V., Pyrounaki, M.M., Tsagarakis, K., Machias, A., Somarakis, S., Schismenou, E., Quinci, E., Basilone, G., Cuttitta, A., Campanella, F., Miquel, J., Oñate, D., Roos, D., Valavanis, V. 2013. Characterizing the potential habitat of European anchovy Engraulisencrasicolus in the Mediterranean Sea, at different life stages, Fisheries Oceanography, 22(2), 69-89
• Mytilineou, C., Tsagarakis, K., Bekas, P., Anastasopoulou, A., Kavadas, S., Machias, A., Haralabous, J., Smith, C.J., Petrakis, G., Dokos, J., Kapandagakis, A. 2013. Spatial distribution and life-history aspects of blackspot seabream Pagellusbogaraveo (Osteichthyes: Sparidae), Journal of Fish Biology, 83(6), 1551-1575
• 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(3), 561-572
• Tsagarakis, K., Pyrounaki, M.M., Giannoulaki, M., Somarakis, S., Machias, A. 2012. Ontogenetic shift in the schooling behaviour of sardines, Sardina pilchardus, Animal Behaviour, 84(2), 437-443
• Somarakis, S., Schismenou, E., Siapatis, A., Giannoulaki, M., Kallianiotis, A., Machias, A. 2012. High
• variability in the Daily Egg Production Method parameters of an eastern Mediterranean anchovy stock: Influence of environmental factors, fish condition and population density, Fisheries Research, 117-118, 12-21
• Tsagarakis, K., Giannoulaki, M., Somarakis, S., MacHias, A. 2012. Variability in positional, energetic and morphometric descriptors of European anchovy Engraulisencrasicolus schools related to patterns of diurnal vertical migration, Marine Ecology Progress Series, 446, 243-258
• Tugores, P., Giannoulaki, M., Iglesias, M., Bonanno, A., Tičina, V., Leonori, I., MacHias, A., Tsagarakis, K., Díaz, N., Giráldez, A., Patti, B., De Felice, A., Basilone, G., Valavanis, V. 2011. Habitat suitability modelling for sardine Sardina pilchardus in a highly diverse ecosystem: The Mediterranean Sea, Marine Ecology Progress Series, 443, 181-205
• Nikolioudakis, N., Palomera, I., Machias, A., Somarakis, S.. 2011. Diel feeding intensity and daily ration of the sardine Sardina pilchardus, Marine Ecology Progress Series, 437, 215-228
• Giannoulaki, M., Pyrounaki, M.M., Liorzou, B., Leonori, I., Valavanis, V.D., Tsagarakis, K., Bigot, J.L., Roos, D., De Felice, A., Campanella, F., Somarakis, S., Arneri, E., Machias, A. 2011. Habitat suitability modelling for sardine juveniles (Sardina pilchardus) in the Mediterranean Sea, Fisheries Oceanography, 20(5), 367-382
• Somarakis, S., Isari, S., Machias, A. 2011. Larval fish assemblages in coastal waters of central Greece: Reflections of topographic and oceanographic heterogeneity, Scientia Marina, 75(3), 605-618
• Antonakakis, K., Giannoulaki, M., Machias, A., Somarakis, S., Sanchez, S., Ibaibarriaga, L., Uriarte, A. 2011. Assessment of the sardine (Sardina pilchardus Walbaum, 1792) fishery in the eastern Mediterranean basin (North Aegean Sea), Mediterranean Marine Science, 12(2), 333-357
• Tsagarakis, K., Coll, M., Giannoulaki, M., Somarakis, S., Papaconstantinou, C., Machias, A. 2010. Food-web traits of the North Aegean Sea ecosystem (Eastern Mediterranean) and comparison with other Mediterranean ecosystems, Estuarine, Coastal and Shelf Science, 88(2), 233-248
• Giannoulaki, M., Valavanis, V.D., Palialexis, A., Tsagarakis, K., Machias, A., Somarakis, S., Papaconstantinou, C. 2008. Modelling the presence of anchovy Engraulisencrasicolus in the Aegean Sea during early summer, based on satellite environmental data, Hydrobiologia, 612(1), 225-240
• Siapatis, A., Giannoulaki, M., Valavanis, V.D., Palialexis, A., Schismenou, E., Machias, A., Somarakis, S. 2008. Modelling potential habitat of the invasive ctenophore Mnemiopsisleidyi in Aegean Sea, Hydrobiologia, 612(1), 281-295
• Tsagarakis, K., Machias, A., Somarakis, S., Giannoulaki, M., Palialexis, A., Valavanis, V.D. 2008. Habitat discrimination of juvenile sardines in the Aegean Sea using remotely sensed environmental data, Hydrobiologia, 612(1), 215-223
• Tsagarakis, K., Machias, A., Giannoulaki, M., Somarakis, S., Karakassis, I. 2008. Seasonal and temporal trends in metrics of fish community for otter-trawl discards in a Mediterranean ecosystem, ICES Journal of Marine Science, 65(4), 539-550
• Machias, A., Stergiou, K.I., Somarakis, S., Karpouzi, V.S., Kapantagakis, A. 2008. Trends in trawl and purse seine catch rates in the north-eastern Mediterranean, Mediterranean Marine Science, 9(1), 49-66
• Ganias, K., Somarakis, S., Koutsikopoulos, C., Machias, A. 2007. Factors affecting the spawning period of sardine in two highly oligotrophic Seas, Marine Biology, 151(4), 1559-1569
• Machias, A., Giannoulaki, M., Somarakis, S., Maravelias, C.D., Neofitou, C., Koutsoubas, D., Papadopoulou, K.N., Karakassis, I. 2006. Fish farming effects on local fisheries landings in oligotrophic seas, Aquaculture, 261(2), 809-816
• Somarakis, S., Ganias, K., Siapatis, A., Koutsikopoulos, C., MacHias, A., Papaconstantinou, C. 2006. Spawning habitat and daily egg production of sardine (Sardina pilchardus) in the eastern Mediterranean, Fisheries Oceanography, 15(4), 281-292
• Giannoulaki, M., Machias, A., Koutsikopoulos, C., Somarakis, S. 2006. The effect of coastal topography on the spatial structure of anchovy and sardine, ICES Journal of Marine Science, 63(4), 650-662
• Karakassis, I., Machias, A., Pitta, P., Papadopoulou, K.N., Smith, C.J., Apostolaki, E.T., Giannoulaki, M., Koutsoubas, D., Somarakis, S. 2006. Cross-community congruence of patterns in a marine ecosystem: Do the parts reflect the whole?, Marine Ecology Progress Series, 310, 47-54
• Giannoulaki, M., Machias, A., Somarakis, S., Karakassis, I. 2005. Wild fish spatial structure in response to presence of fish farms, Journal of the Marine Biological Association of the United Kingdom, 85(5), 1271-1277
• Giannoulaki, M., Machias, A., Somarakis, S., Tsimenides, N. 2005. The spatial distribution of anchovy and sardine in the northern Aegean Sea in relation to hydrographic regimes, Belgian Journal of Zoology, 135(2), 151-156
• Machias, A., Karakassis, I., Giannoulaki, M., Papadopoulou, K.N., Smith, C.J., Somarakis, S. 2005. Response of demersal fish communities to the presence of fish farms, Marine Ecology Progress Series, 288, 241-250
• Papandroulakis, N., Suquet, M., Spedicato, M.T., Machias, A., Fauvel, C., Divanach, P. 2004. Feeding rates, growth performance and gametogenesis of wreckfish (Polyprion americanus) kept in captivity, Aquaculture International, 12, 395-407
• Machias, A., Karakassis, I., Labropoulou, M., Somarakis, S., Papadopoulou, K.N., Papaconstantinou, C. 2004. Changes in wild fish assemblages after the establishment of a fish farming zone in an oligotrophic marine ecosystem, Estuarine, Coastal and Shelf Science, 60(4), 771-779
• Ganias, K., Somarakis, S., Machias, A., Theodorou, A. 2004. Pattern of oocyte development and batch fecundity in the Mediterranean sardine, Fisheries Research, 67(1), 13-23
• Machias, A., Maiorano, P., Vassilopoulou, V., Papaconstantinou, C., Tursi, A., Tsimenides, N. 2004. Sizes of discarded commercial species in the eastern-central Mediterranean Sea, Fisheries Research, 66, 213-222
• Giannoulaki, M., Machias, A., Koutsikopoulos, C., Haralabous, J., Somarakis, S., Tsimenides, N. 2003. Effect of coastal topography on the spatial structure of the populations of small pelagic fish, Marine Ecology Progress Series, 265, 243-253
• Ganias, K., Somarakis, S., Koutsikopoulos, C., Machias, A., Theodorou, A. 2003. Ovarian atresia in the Mediterranean sardine, Sardina pilchardus sardina, Journal of the Marine Biological Association of the United Kingdom, 83(6), 1327-1332
• Ganias, K., Somarakis, S., Machias, A., Theodorou, A.J. 2003. Evaluation of spawning frequency in a Mediterranean sardine population (Sardina pilchardus sardina), Marine Biology, 142(6), 1169-1179
• Stergiou, K.I., Machias, A., Somarakis, S., Kapantagakis, A.. 2003. Can we define target species in Mediterranean trawl fisheries?, Fisheries Research, 59(3), 431-435
• Machias, A., Somarakis, S., Papadroulakis, N., Spedicato, M.-T., Suquet, M., Lembo, G., Divanach, P. 2003. Settlement of the wreckfish (Polyprion americanus), Marine Biology, 142(1), 45-52
• Machias, A., Labropoulou, M. 2002. Intra-specific variation in resource use by red mullet, Mullus barbatus, Estuarine, Coastal and Shelf Science, 55(4), 565-578
• Somarakis, S., Koutsikopoulos, C., Machias, A., Tsimenides, N. 2002. Applying the daily egg production method (DEPM) to small stocks in highly heterogeneous seas, Fisheries Research, 55, 193-204
• Somarakis, S., Machias, A. 2002. Age, growth and bathymetric distribution of red pandora (Pagelluserythrinus) on the Cretan shelf (eastern Mediterranean), Journal of the Marine Biological Association of the United Kingdom, 82(1), 149-160
• Machias, A., Maraveyia, E., Pavlidis, M., Somarakis, S., Divanach, P.. 2002. Validation of annuli on scales and otoliths of common dentex (Dentex dentex), Fisheries Research, 54(2), 287-294
• Machias, A., Vassilopoulou, V., Vatsos, D., Bekas, P., Kallianiotis, A., Papaconstantinou, C., Tsimenides, N. 2001. Bottom trawl discards in the northeastern Mediterranean Sea, Fisheries Research, 53(2), 181-195
• Labropoulou, M., Machias, A., Tsimenides, N. 1999. Habitat selection and diet of juvenile red porgy, Pagruspagrus (Linnaeus, 1758), Fishery Bulletin, 97(3), 495-507
• Giannoulaki, M., Machias, A., Tsimenides, N. 1999. Ambient luminance and vertical migration of the sardine Sardina pilchardus, Marine Ecology Progress Series, 178, 29-38
• Labropoulou, M., Machias, A. 1998. Effect of habitat selection on the dietary patterns of two triglid species, Marine Ecology Progress Series, 173, 275-288
• Machias, A., Somarakis, S., Tsimenides, N. 1998. Bathymetric distribution and movements of red mullet Mullussurmuletus, Marine Ecology Progress Series, 166, 247-257
• Machias, A., Tsimenides, N., Kokokiris, L., Divanach, P. 1998. Ring formation on otoliths and scales of Pagruspagrus: A comparative study, Journal of Fish Biology, 52(2), 350-361
• Labropoulou, M., Machias, A., Tsimenides, N., Eleftheriou, A. 1997. Feeding habits and ontogenetic diet shift of the striped red mullet, Mullussurmuletus Linnaeus, 1758, Fisheries Research, 31(3), 257-267
• Machias, A., Tsimenides, N. 1996. Anatomical and physiological factors affecting the swim-bladder
• cross-section of the sardine Sardina pilchardus, Canadian Journal of Fisheries and Aquatic Sciences, 53(2), 280-287
• Machias, A., Tsimenides, N. 1995. Biological factors affecting the swimbladder volume of sardine (Sardina pilchardus), Marine Biology, 123(4), 859-867
• Tsimenides, N., Machias, A., Kallianiotis, A. 1992. Distribution patterns of triglids (Pisces: Triglidae) on the Cretan shelf (Greece), and their interspecific associations, Fisheries Research, 15, 83-103
• Tsimenides, N., Tserpes, G., Machias, A., Kallianiotis, A. 1991. Distribution of fishes on the Cretan shelf, Journal of Fish Biology, 39(5), 661-672