Dr Nikolaos G. Vlahos
Assistant professor
School of Agricultural Sciences · Department of Animal Production, Fisheries & Aquaculture · University of Patras 30 200 Messolonghi, Greece
Expertise: Nutrition, Nutritional physiology, Aquaponics (Fresh & Brackish water), Biology andReproduction of Ornamental fish, Aquaculture of Ornamental fish and Aquarium industry, Aquascapingand Design of Aquariums (fresh water, salt water and reef aquarium), Plant aquarium, Physiology ofAquatic Animals in Aquaponics systems, Design and aquascaping of Aquaponic systems.
Education
Post Doc Researcher in Nutrition and physiology of aquatic animals in aquaponic systems, Universityof Thessaly, Department of Ichthyology and Aquatic Environment, Greece.
PhD in Nutritional physiology of Ornamental fish, University of Thessaly, Department of Ichthyologyand Aquatic Environment, Greece. PhD Thesis: Biology and Nutritional physiology of Ornamentalfish in aquariums.
M.Sc. in Environmental Sciences, University of Patras, Department of Biology, Greece, Master’sThesis: Estimation of the environmental status of the lagoon of Messolonghi through the determinationof heavy metals and natural radioactive nuclides in sediments
Ichthyologist, Technological Educational Institution of Messolonghi, Department of Aquaculture andFisheries
Professional Experience
1992-1993
Ichthyologist in Fresh Water Aquaculture
1993-2012
Lecturer: Fresh Water Aquaculture, Ornamental aquaculture, Aquarium. Departmentof Aquaculture and Fisheries Management, Technological Educational Institution (TEI) ofMessolonghi
2004-2015
Technician, Aquaculture laboratory, Aquaria Unit, Department of Fisheries &Aquaculture, Technological Educational Institution of Western Greece
2015-now
Research and Teaching Fellow, Department of Animal Production, Fisheries &Aquaculture, University of Patras
2015-now
Lecturer in undergraduate courses: Aquatic animal physiology-Endocrinology,Nutritional Physiology, Aquarium-Aquaponics, Department of Fisheries and Aquaculture,University of Patras
2019-now
Lecturer in the postgraduate course; Sustainability of aquaculture and fisheries
2017-now
Visiting Lecturer in undergraduate courses: Aquatic animal physiology-Endocrinology,Nutritional Physiology, Aquarium-Aquaponics, Department of Ichthyology and AquaticEnvironment, University of Thessaly
2018-now
Visiting Lecturer in postgraduate courses at the Mediterranean Aquaculture,postgraduate programme, Department of Ichthyology and Aquatic Environment, University of Thessaly
Scientific & Research interests
Aquatic animal nutritional physiology in aquaponic systems
Aquaponics design and aquascape (Freshwater, Brackish water)
Nutrition and feeding of ornamental fish
Feeding formulation-Aqua feed technology
Biology and reproduction of fish for ornamental aquaculture
Aquaria and small recirculation water systems construction and running
Small-scale tropical fish production
Aquascaping and aquarium design
Publications in International peer reviewed Journals
Vlahos N, Psofakis P, Mitsopoulos I, Tampou A, Zotos A, Mazarakioti EC, Berillis P. Effects of FeedingRatio on the Co-Culture of European Sea Bass (Dicentrarchus labrax) and Glasswort (Salicorniaeuropaea) in a Recirculating Brackish Aquaponic System. Applied Sciences. 2026; 16(6):2930.https://doi.org/10.3390/app16062930.
Tampou, A., Kousoulaki, K., Vasilaki, A., Vlahos, N., Nikouli, E., Panteli, N., .Konstantinos Feidantsis,Konstantinos Kormas, Styliani Andreopouloy, Ioannis T.Krapanagiotidis, Panagiotis Berillis, Ioannisnegkas, Eftimia Antonopoulou.. & Mente, E. (2025). Growth Performance of Gilthead Sea Bream(Sparus aurata) Fed Low Fish Meal Diets With an Innovative Mixture of Low TrophicIngredients. Aquaculture Nutrition, 2025(1), 7504207.
Petrellis N, Germanou P, Betounis I, Christakos P,Antonopoulos P.C, Voros N, Vlachos N, Ziou A,Katselis G (2025). Selecting the appropriate ensemble of Regression trees model for fish shapealignment. Journal on Communications(1000-436X), Volume 20 Issue 11 2025, | www.jocs.review.Pp.1-14.
Katselis, G.; Vlahos, N.; Koutsikopoulos, C.; Moutopoulos, D.K. Diversity of Fish and Decapod Fryin the Coastal Zone of Amvrakikos Gulf. Diversity 2024, 16, 164. https://doi.org/10.3390/ d16030164.
Mitsopoulos, I., Papadopoulou, A., Vlahos, N., Berillis, P., Levizou, E., & Mente, E. (2024).Mediterranean Aquaponics: Fasting and Refeeding in a Polyculture Aquaponic System. AppliedSciences, 14(21), 9829. https://doi.org/10.3390/app14219829.
Mitsopoulos, I., Kontou, I. G., Babouklis, K., Vlahos, N., Berillis, P., Levizou, E., & Mente, E. (2024).Starvation and re-feeding of Gilthead seabream (Sparus aurata) and European seabass (Dicentrarchuslabrax) co-cultured with glasswort (Salicornia europaea) in a polyculture aquaponic system. PeerJ, 12,e17814.
Tsoumalakou, E.; Mente, E.; Kormas, K.A.; Katsoulas, N.; Vlahos, N.; Kapsis, P.; Levizou, E.(2022).Precise Monitoring of Lettuce Functional Responses to Minimal Nutrient Supplementation IdentifiesAquaponic System’s Nutrient Limitations and Their Time-Course. Agriculture 2022, 12, 1278.https://doi.org/10.3390/ agriculture12081278.
Karapanagiotidis, I. T., Kyritsi, S.,Dretaki- Stamou, G., Psofakis, P., Neofytou, M. C., Mente,E.,Vlahos, N., & Karalazos, V. (2021). The effect of different dietary protein levels on growthperformance and nutrient utilization of snarpsnout sea bream (Diplodus puntazzo). AquacultureResearch, 00, 1-9. https://doi.org/10.1111/are.15719.
Stathopoulou P, Berillis P, Vlahos N, Nikouli E, Kormas KA, Levizou E, Katsoulas N, Mente E.(2021). Freshwater adapted sea bass Dicentrarchus labrax feeding frequency impact in a lettuce Lactucasativa aquaponics system. PeerJ 9:e11522 DOI 10.7717/peerj.11522.
Mente, E.; Carter, C.G.; Barnes, R.S.; Vlahos, N.; Nengas, I. (2021). Post-prandial Amino AcidChanges in Gilthead Sea Bream. Animals (2021), 11, 1889. https://doi.org/10.3390/ani11071889.
Vasiliki N., Zaoutsos.S., Vlahos.,N., Berillis.,P. (2020). Vertebrae Morphometric Measurementand Ca/P Levels of Different Age European Seabass (Dicentrarchus labrax). Fishes 5 (4):3-10.
Mastoraki M, Vlahos N, Patsea E, Chatzifotis S, Mente E, Antonopoulou E. (2020) The effect of insectmeal as a feed ingredient on survival, growth, and metabolic and antioxidant response of juvenile prawnPalaemon adspersus (Rathke, 1837). Aquac Res. 2020; 00:1–12. https:// doi.org/10.1111/are.14692.
Vlahos N., Levizou E., P. Stathopoulou ., P. Berillis., E. Antonopoulou ., V. Bekiari. N. Krigas., K.Kormas, and E. Mente (2019). An Experimental Brackish Aquaponic System Using Juvenile GiltheadSea Bream (Sparus aurata) and Rock Samphire (Crithmum maritimum)., Sustainability 11(18).,DOI: 10.3390/su11184820.3
Stathopoulou P., Berillis P., Levizou E., Sakellariou-Makrantonaki M.,, Kormas A.K., AggelakiA.,Kapsis P.,, Vlahos N., and Mente E. (2018). Basil and Nile tilapia Production in a Small ScaleAquaponic System. Journal of FisheriesSciences.com, (E-ISSN 1307-234X) ,12(4): 001-003.
Mente, E., Solovyev, M.M.,Vlahos N., Rotllant, G., Gisbert,E. (2017). Digestive enzymes activityduring initial ontogeny and after feeding diets with different protein sources in zebra cichlidArchocentrus nigrofasciatus. Journal of World Aquaculture Society,48 (5):831-848.
Vlahos N., Vasilopoulos M., Mente E., Hotos G., Katselis G. Vidalis K (2014). Yolk-sac larvaldevelopment of the substrate-brooding cichlid Archocentrus nigrocasciatus in relation to temperature,Inteagrative Zoology; 10:497-504.
Vlahos, N., Kormas, K., Pachiadaki, G.M., Meziti, A, Hotos, G. (2013). Changes of bacterioplanktonapparent species richness in two ornamental fish aquaria. Springer Plus, 2:66.
Hotos, G. N. & Vlahos, N., (1998). Salinity tolerance of Mugil cephalus and Chelon labrosus (Pisces:Mugilidae) fry in experimental conditions. Aquaculture, 167:329-338.
Hotos, G. N. & Vlahos, N., (1999). Observations on the conditioning of filter bed in hypersaline aquaria.Aquacultural Engineering, 19: 215-222.
International conferences
MitsopoulosI, V. Kostopoulou, G. Agrapidis, N. Vlahos, I Karapanagiotidis, P.Berilis, and E. Mente.(2025). Evaluating The Impact Of Reclaimed Water Use On The Co-cultivation Of Common Carp(Cyprinus Carpio) And Lettuce (Lactuca Sativa) In A One-loop Aquaponic System. AquacultureEurope society (EAS,2025) European Conference, September 22 - 25, 2025, Valencia, Spain, pp 1106-1017.
Mitsopoulos I, Papageorgiou A, P.Psofakis, E.Patsea, I. Karapanagiotidis, P.Berillis , E. Mente and N.Vlahos (2025). Effects Of Satiation Daily Feeding Supply And Food Deprivation On Ammonia MassBalance In A Brackish Polyculture Aquaponics System. Aquaculture Europe society (EAS,2025)European Conference, September 22 - 25, 2025, Valencia, Spain, pp 1108-1019.
Mina M, Filinta V, Chatziefstathiou M, Mitsopoulos I, Mente E & Vlahos N (2024). Cultivationpotential of the macroalgae Ulva compressa at different nitrogen levels in aquaculture as an indicatorof nitrogen absorption. International Conference Adriatic Biodiversity Protection - AdriBioPro202401-04 October 2024, Kotor, Montenegro, pp66.
E. Tsoumalakou, E. Mente, N. Vlahos and E. Levizou (2021). Aquaponics in action: physiologicalresponses of spinach and tilapia growth. World Aquaculture Society (EAS), Aquaculture Europe 2021,EAS 2021 Virtual Congress, May 30-June 2, 2021.
F. Papagiannidou , C.S. Chatzimavroudis, D. Lazari, N. Krigas , N. Vlachos, E. Mente, E. Levizou(2021). Rock samphire responds to increased salinity levels with a differentiated profile of essential oilcomposition when grown in an aquaponics system.
G Tsagkatakis, S Nikolidakis, E Petra, A Kapantagakis, K Grigorakis, G Katselis, N Vlahos, PTsakalides Electronic Imaging 2020 (12), 71-1-171-5
Vlahos N., Babouklis K., Frangou S., Mitsopoulos I., Kapetanios E., Manolios A., Giannoulatou K.,Mardoglou E., Mente E. (2019). Design, Aquascape and Conditioning of a Brackish AquaponicsSystem. World Aquaculture society (EAS), Aquaculture Europe 2019, 7-10 October, Berlin Germany2019.
Tsoumalakou, E., E. Mente , N. Katsoulas , K.A. Kormas , P. Berillis , N. Vlahos , P. Kapsis , P.Stathopoulou and E. Levizou (2019). Nutrient input in as small scale Aquaponic system: Effect onLettuce functional responses and tilapia growth. World Aquaculture society (EAS), Aquaculture Europe2019, 7-10 October, Berlin Germany 2019.
Mente E., K. Kousoulaki, N. Vlahos, A. Vasilaki, E. Antonopoulou , A. Jokumsen., P. Lembo, I. Nengas(2019). Feed and Nutrition in Organic Aquacutlure. World Aquaculture society (EAS), AquacultureEurope 2019, 7-10 October, Berlin Germany 2019.
Alexandrou, K., Stathopoulou, P., Tsoumalakou, E.,Kormas, K.A., Levizou, E., Vlahos, N., Berillis, P.,Kapsis, P., katsoulas, N and Mente , E. (2018). Optimization of Aquaponics in Greece. Poster in E.UAquaponics HUB: Grop Science to practice 9-10 Aprili 2018 University of Greenwich, London, UK.4
Chatzieftathiou M., A. Exadactylos., N. Vlachos, M.M. Tsoumani (2018). Serbia on the path towardsthe E.U: Status and expected outcome of the Negotiations on chapter 13 “Fisheries”. 8th Internationalconference “Water & Fish” -Conference Proceedings. Faculty of Agriculture, Belgrade, Serbia 2018:pp. 1-9.
Vlahos, N., Devetzoglou, K., Mitsopoulos,I., Mpampouklis, K., Mente, E. (2018). The effect of fishmeal replacement with insect meal on growth performance and survival rate of zebrafish (Danio rerio).World Aquaculture society (EAS). Aqua 2018. 25-29 August, Montpellier, France.
Mastoraki M., Vlahos N., Zotou P., Chatzifotis S., Antonopoulou E., Mente E. (2018). The effect ofinscect meal as a feed ingredient on survival, growth and feeding behavior of juvenile prawn Palaemonadspersus (RATHKE, 1837), Oral Presentation in 3nd HydroMediT 2018, Volos, Greece, November 9-11,2018.
Vlahos N., Petrou A., Patsea E., Nystas T., Panayiotou N., Vidalis K., Mente E., Antonopoulou E.(2018). The effect of fish meal replacement with insect meal on growth food consumption and survivalrate of angelfish (Pterophyllum scalare), Oral Presentation in 3nd HydroMediT 2018, Volos, Greece,November 9-11, 2018.
Stathopoulou P., Berillis P., Levizou E., Sakellariou-Makrantonaki M., Kormas A.K., Aggelaki A.,Kapsis P., Vlahos N., Mente E. (2018). Aquaponics: a mutually beneficial relationship of fish, plantsand bacteria. Oral Presentation in 3nd HydroMediT 2018, Volos, Greece, November 9-11, 2018.
Vlahos N., Petra E., Antzoulatos G., Seferis K., Kakaletris G., Katselis G., Mente E. (2018). UsingBlueBridge collaborate cloud environment as a learning tool for student education in aquaculture. e-poster in 3nd HydroMediT 2018, Volos, Greece, November 9-11, 2018.
Kapantagakis A., Katselis G., Petra E., Tsagkatakis P., Tsakalides P., Vlahos N (2018). The Frescoproject: automatic recognition of freshness. e-poster in 3nd HydroMediT 2018, Volos, Greece, November9-11, 2018.•
lachos N., Berillis P., Karapanagiotidis I.T., Kormas K., Korakis A., Maglavera S., Mente E. (2018).Future growth in sustainable, resilient and climate friendly organic and conventional EuropeanAquaculture (FutureEUAqua). e-poster in 3nd HydroMediT 2018, Volos, Greece, November 9-11, 2018.
Vlahos, N., Akrivouli, A., Mente, E., Exadactylos A., Nystas T., Patsea E., Vidalis K., Hotos G. (2016).The effect of three different temperatures on the growth and survival rate of Palemon adspersus.Procceding of the 2nd International Congress on Applied Ichthyology & Aquatic Environment. 10-12November 2016 Messolonghi –Greece pp:59-63. ISBN 978-618- 80242-3-6.
Solovyen, M.M., Mente, E., Vlahos, N., Makri, M and, Rottland, G. (2014).Digestive Enzymes profilDuring ontogenesis in zebra cichlid Archocentrus nigrofasciatus. EAS (Europe Aquaculture Society),Donistia –San Sebastian, Spain October 14-17, 2014.
Karapanagiotidis, T.,J., Dretaki-Stamou, G., Vlachos,N., Mente,E.,Kyritsi, S., Karalazos,V. (2013). Theeffect of various dietary protein and protein to energy Levels on Growth and Feed utilization ofSharpnout Seabream (Diplodus puntazzo), Aquaculture Europe, EAS, Making Sense of Science,Trondheim, Norway August 9-12, 2013.
Psofakis, P., Mente, E., Vlachos, N., and 1Karapanagiotidis, I.T. (2010) Feeding rate level of ornamentalfish Pterophyllum scalare. 5th International Congress on Aquaculture Fisheries Technology andEnvironmental Management. 25-27 November 2010., Aquaculture & Fiesheries Department, TEI ofMesolonghi,Greece, EU ISBN: 978-960-87795-3-2
Mente, E., Vlachos, N., Hotos, G., Kormas, K., Karapanagiotidis, I.T., Psofakis, P. & Neofytou, C.(2008). Nutritional physiology of ornamental fishes. XIII International Symposium on Fish Nutritionand Feeding. Fish and Crustacean Nutrition: Present Knowledge and Future Perspectives. June 1-5,2008, Florianopolis, Brasil.
Vlachos, N., Mente, E., Hotos, G.N., Kormas, K., Psofakis, P. and Neofitou, C. (2008). CommercialProduction of Pterophyllum scalare (cn: Angelfish, Pisces Ciclidae) in aquarium. 4th InternationalCongress on Aquaculture, Fisheries Technology and Environmental Management, 21 - 22 November2008, Athens, Greece.5
Vlachos, N., Mente, E., Hotos, G.N., Kormas, K., Tzoganis, C., Psofakis, P. and Neofitou, C. (2008).Effect of food supply on the growth rate of the convict cichlid, Archocentrus nigrofasciatus (PiscesCiclidae) in aquarium. 4th International Congress on Aquaculture, Fisheries Technology andEnvironmental Management, 21 - 22 November 2008, Athens, Greece.
Vlachos, N., Mente, E., Hotos, G.N., Kormas, K., Tzoganis, C., Psofakis, P. and Neofitou, C. (2008).Effect of food supply on the growth rate of the angelfish Pterophyllum scalare (Pisces Ciclidae) inaquarium. 4th International Congress on Aquaculture, Fisheries Technology and EnvironmentalManagement, 21 - 22 November 2008, Athens, Greece.
Vlahos, N., Hotos, G. & Kapetanios, N. (2004). The effect of temperature on the conditioning of thefilter bed in aquaria. 2nd International Congress on Aquaculture, Fisheries Technology andEnvironmental Management. 18 – 19 June 2004, Evgenidion Foundation, Athens, Greece.
National conferences
Ανδρώνης A, Στεμιτσιώτης B, Ψωφάκης Π, Τάμπου Α, Μητσόπουλος Ι, Μπεκιάρη Β, Βιδάλης Κ,Μεντέ Ε, Βλάχος Ν (2025). Αναλυση του ισοζυγιου μαζας της αμμωνίας σε συστήματαενυδρειοπονιας με πολυκαλλιεργεια.19ο Συνέδριο Ιχθυολογων, 30/10 – 2/11/2025,Ιωάννινα,σελ. 249-252 προφορική παρουσίαση.
Μητσόπουλος Ι, Βλάχος Ν, Ψωφάκης Π, Μπασιμακόπουλος Γ, Σιέκκερης Σ, Πατσέα Ε, ΚατσούληςΔημητρίου Σ, Βερίλλης Π, Μεντέ Ε (2025). Πολυτροφικό σύστημα ενυδρειοπονίας: Η περίπτωση τηςσυνδυασμένης καλλιέργειας λαβρακιού, γαρίδας και σαλικόρνιας σε υφάλμυρο νερό. 19ο ΣυνέδριοΙχθυολογων, 30/10 – 2/11/2025,Ιωάννινα ,σελ. 277-280. προφορική παρουσίαση
Παπαδοπούλου Α, Μαλιγκάνη Χ, Μητσόπουλος Ι, Μεντέ Ε, Βλάχος Ν (2025). Επίδραση τηςθερμοκρασίας στην ανάπτυξη και επιβίωση του είδους Hemichromis lifalili σε ενυδρεία. 19ο ΣυνέδριοΙχθυολογων, 30/10 – 2/11/2025,Ιωάννινα ,σελ. 297-300. προφορική παρουσίαση
Πατσέα Ε , Μητσόπουλος Ι, Σιεκκερής Α, Ψωφάκης Π, Τάμπου Α, Μεντέ Ε, Βλάχος Ν, Κατσέλης Γ(2025). Κλιματική Αλλαγή και Ενυδρειοπονία: Η επίδραση της θερμοκρασίας στην παραγωγικότητατης τσιπούρας και της σαλικόρνιας. 19ο Συνέδριο Ιχθυολογων, 30/10 – 2/11/2025,Ιωάννινα ,σελ. 305-308. προφορική παρουσίαση
Χατζηλιάδης Κ-Ν, Κούλη Ε, Αγγελούση Ε, ΜητσόπουλοςΙ , Ψωφάκης Π, Βιδάλης Κ, Μεντέ Ε, ΒλάχοςΝ (2025). Ολοκληρωμενα συστηματα πολυκαλλιεργειας: Επιδραση της αλατοτητας στην αναπτυξη τηςτσιπουρας (sparus aurata) και της σαλικορνιας (salicornia europaea)., 19ο Συνέδριο Ιχθυολογων, 30/10– 2/11/2025,Ιωάννινα ,σελ. 345-348. προφορική παρουσίαση
Ρούμουγλου Α, Μηνά Μ, Φιλίντα Β, Ψωφάκης Π, Μητσόπουλος Ι, Χατζηευσταθίου Μ, Μεντέ Ε,Βλάχος Ν (2025). Ulva compressa : Αξιολόγηση παραμέτρων ανάπτυξης του μακροφύκους υπόελεγχόμενες συνθήκες., 19ο Συνέδριο Ιχθυολογων, 30/10 – 2/11/2025,Ιωάννινα ,σελ. 321-324.προφορική παρουσίαση
Μητσόπουλος Ι, Τσαούσογλου Μ, Ψωφάκης Π, Τάμπου Α, Καπετάνιος Ε, Πατσέα Ε, Μεντέ Ε, ΒλάχοςΝ (2025). Συγκαλλιέργεια λαβρακιού (Dicentrarchus labrax) με σαλικόρνια (Salicornia europea) σεκλειστό σύστημα ενυδρειοπονίας: Επίδραση της Ιχθυοφόρτισης στην ανάπτυξη και κατανάλωση τηςτροφής,. 19ο Συνέδριο Ιχθυολογων, 30/10 – 2/11/2025,Ιωάννινα ,αναρτημένη παρουσίαση.
Mitsopoulos I, Bampouklis K, Vlahos N, Verilis P, Mente E. (2022). Multitrophic aquaponic system:The case of co-culture of sea bream, sea bass and salicornia. 18ο National Conferences of Icthyologyst.Messolonghi 3-6 November 2022.
Mardoglou E, Anastasiadis A, Koutrakis I, Koulopoulou C.E, Stefa Z.A, Pertesi M, Fousekis N, MenteE, Vlahos N (2022): The effect of volumetric TAN removal on the Functional and efficiency of brackishaquaponic systems. 18ο National Conferences of Icthyologyst. Messolonghi 3-6 November 2022.
Vlahos N., Mitsopoulos I., Bampouklis K., Kormas K., Berillis P., Mente E. (2019). Bacterialabundance in aquaponics under two salinities 20 ppt and 8 ppt. 42oHellenic Congress of BiologicalSciences, 9-11 May Katerini, Greece 2019.6
Μartou Ν., Κ. Μorfesis, E. Patsea, Ν. Vlahos., Ε. Mende., Antonopoulou E (2019). Απόκριση μελώντων Οικογενειών των HSPS και MAPKS στα είδη Sparus aurata and Dicentrarchus labrax σεδιαφορετικές συγκεντρώσεις αλατότητων νερού. 42oHellenic Congress of Biological Sciences, 9-11May Katerini, Greece (2019).
Spiliopoulou E., Stathopoulou P., Vlachos N., Mente E and Berillis P. (2019). Measurements of twoerythrocytes and Leucocytes differentiation in Tilapia blood. 42oHellenic Congress of BiologicalSciences, 9-11 May Katerini, Greece (2019).
Vlahos N., Kapetanios E., Frangou S., P. Stathopoulou., Levizou E., P. Berillis., N. Krigas., K. Kormasand E. Mente (2019). Alternative Water Uses: Aquaponic of Mediterranean Species in Brackish water.14th Conference of the Hellenic Hydrotechnical Association (H.H.A).16-17 May, Volos, Greece.pp.114.
Psofakis,P., Mente,E., Karapanagiotidis, I., Vlahos,N., & Negkas,I. (2012). Food consumption andestimate of food level in the ornamental angelfish (Pterophyllum scalare).Proceedings of 34oHellenicCongress of Biological Sciences, 17-19 May, Trikala, Greece, 2012, pp332.
Ahtipi,K., Gerontis, Th., karapanagiotidis, I, Vlahos,N., & Mente, E., (2012).The effect of differentdietary protein in growth of the convict cichlid (Archocentrus nigrofasciatus). Proceedings of34oHellenic Congress of Biological Sciences, 17-19 May, Trikala, Greece, 2012, pp14
Vlahos,N., Vasilopoulos, M., Mente, E., Vidalis,K., Hotos, G., Katselis, G. (2012). Yolk-sac larvaldevelopment of the substrate-brooding cichlid Archocentrus nigrocasciatus (Pisces: Cichlidae) inrelation to temperature. Proceedings of the 10th Hellenic Congress of Oceanography and Fisheries.Athens, Greece, 7-11 May 2012, (In Greek with English summary).
Vlahos, N., Ramfos, A., Moutopoulos, D., Hotos, G., katselis, G. (2012). The study of ichthyofauna ofAhelloos river. Proceedings of the 10th Hellenic Congress of Oceanography and Fisheries. Athens,Greece, 7-11 May 2012, (In Greek with English summary).
Vlahos, N., Pachiadaki, G.M., Meziti, A.,Mente, E., Hotos, G., Kormas, K. (2010). Bacterialcommunities in ornamental fish aquariums: Preliminary results. Proceedings of 32oHellenic Congressof Biological Sciences (E.E.B.E.), 20-22 May, Karpenisi, Greece, 2010.
Vlahos, Ν., Papatheodorou, G., Hotos, G., Sotiropoulou, Α., Katoufas, Ι. & Giatsis, H. (2007).Concentration of heavy metals in the sediment of the Messolonghi lagoon. 13th Panhellenic Congressof Ichthyologists, Mytilini, Lesbos isl., 27-30 September 2007, 479-482. (In Greek with Englishsummary).
Hotos, G. N. & Vlahos, N., (2000). Mugilidae fry’s tolerance to hypersalinity in experimentalconditions. Proceedings of the 6th Hellenic Congress of Oceanography and Fisheries. Chios, Greece,23-26 May 2000, v. ΙΙ: 323 - 328. (In Greek with English summary).
Hotos, G. N. & Vlahos, N., (2000). A preliminary study on the growth of the fry of four Mugilid speciesin a recirculation system. Proceedings of the 6th Hellenic Congress of Oceanography and Fisheries.Chios, Greece, 23-26 May 2000, v. II: 358 - 360. (In Greek with English summary).
Participation in national projects
Member of the research team
1997-1999
A preliminary study on the growth of the fry of four Mugilid species in a recirculationsystem
1999-2001
Study of the metabolism and determination of safety limits of metabolic products fromthe main farmed fish species in Greece
2002-2004
The Study the conditions of reproduction and growth of the main marketing ornamentalfish fry in aquariums.
2005-2007
Determination of the physicochemical properties of water and detection of heavy metalconcentrations in the sediments of Messolonghi lagoon. Analysis of the physicochemical,geochemical and sedimentological data in GIS environment.
2006-2007
Management of Natura sea region.
2011-2013
Estimation of nutritional requirements of the Sharpsnout seabream (Diploduspuntazzo).
2014-2015
Study of biotic and abiotic parameters in Amvrakikos gulf and the gulf of Chalkidiki.
2015-2018
Blue Bridge «Building Research environments, Decision making, Governance andEducation»
2015-2017
Study of the anoxic zone of Amvrakikos gulf: Imprinting, Effects and Management.
2017
Study of biotic and abiotic parameters of POAY of Leros Island-Greece
2017
Recording sedimentological and environmental parameters in marine aquaculture parks
2018-2019
Development and optimization of an aquaponic system one more step towards theefficient of food production (FoodOasis)
2018-2021
Future growth in sustainable, resilient and climate friendly organic and conventionalEuropean aquaculture (FutureEUAqua)
2018-2021
Freshness Recording System for fish Quality Observation, EPAL.2014-2020
Referee activity-Member of Editorial Board
Referee activity
SpringerPlus
Turkish Journal of Fisheries and Aquatic Sciences
Aquaculture Research
Aquaculture
MDPi Open Access Journal
Member of Editorial Board
Water (special issue of HydromediT 2018)
Journal of FisheriesSciences.com
Water special issue on Aquaponics Systems: Present and Future Challenges
Other activities
Member of organizing committee of International Congress
4thInternational; Congress in Aquaculture, Environment and fisheries management, AquamediT 2008,Athens, Greece 21-22 November 2008.
5th International; Congress in Aquaculture, Environment and fisheries management,AquamediT,2010, Athens, Greece 21-22 November 2010.
1thInternational; Congress of Applied ichthyology & aquatic Enviroment, HydromediT 2014, Volos,Greece 13-15 November 2014.
2th International Congress of Applied ichthyology & aquatic Enviroment, HydromediT 2016,Messolonghi, Greece 10-12 November 2016
3th International Congress of Applied ichthyology & aquatic Enviroment, HydromediT 2018,Volos,Greece 8-11 November 2018
4th International Congress on Applied ichthyology , Oceanography & Aquatic Environment,HydromediT 2021, 4-7 November 2021 Mytilene, Greece.