CURRICULUM
VITAE
PERSONAL INFORMATION
First name / Surnameο
E-mail
Nationality
Gender
Vasilis Trygonis
vtrygonis@marine.aegean.gr
Greek
Male
EDUCATION AND TRAINING
2012 – 2013
Postdoctoral training in underwater acoustics
Harbor Branch Oceanographic Institute at Florida Atlantic University, United States of America
Bioacoustics, acoustic behavior and ecology of marine mammals
2005 – 2010
Doctor of Philosophy (Ph.D.) Fisheries Acoustics & Oceanography
University of the Aegean, Department of Marine Sciences, Greece
Ph.D. dissertation:
Development of an operational system for acoustic detection and tracking of pelagic fish schools using
omnidirectional multibeam sonars
Principal subjects
Fisheries acoustics, software development for sonar data acquisition and processing, acoustic signal
processing, fish school detection and tracking, biomass estimation, acoustic simulation
The Ph.D. research was conducted under the FADIO EU project: http://www.fadio.ird.fr
2001 – 2002
Master of Science (M.Sc.) Offshore & Ocean Technology
Cranfield University, School of Industrial and Manufacturing Science, Bedford, United Kingdom
Principal subjects
1995 – 2001
Underwater acoustics, optics, and control, Underwater technologies, Acoustic navigation systems
M.Eng. Mechanical Engineering (5 year course)
Aristotle University of Thessaloniki, Polytechnic Faculty, Dept. of Mechanical Engineering, Greece
Principal subjects
Fluid mechanics, Material engineering, Vibration dynamics, Thermodynamics, Kinematics, Physics
WORKING EXPERIENCE
May 2013 – today
Postdoctoral researcher. Department of Marine Sciences, University of the Aegean
Acoustic data analysis, image processing, MATLAB application development
Jan. 2012 – May 2013
Faculty research associate. Harbor Branch Oceanographic Institute. Florida Atlantic University, USA
Marine mammal bioacoustics
2005 – Oct. 2011
Research assistant. Fisheries Management & Fisheries Acoustics Laboratory, Department of Marine
Sciences, University of the Aegean
Acoustic data collection and analysis, MATLAB application development, Testing, installation, and
maintenance of hydroacoustic equipment
Feb. – Jun. 2011
Feb. – Jun. 2010
Teaching fellow in fisheries & underwater acoustics. Post-graduate course, Department of Marine
Sciences, University of the Aegean
Lectures in MATLAB programming for underwater acoustic applications, Preparation of background
material, course syllabus, and final exams
Dec. 2010 – Mar. 2011
Web developer. University of the Aegean
Development of the official webpage for the Department of Marine Sciences (http://www.mar.aegean.gr)
Sep. 2009 – Sep. 2010
Computer laboratory assistant. Department of Marine Sciences, University of the Aegean
Provision of consulting support and reference material to students and faculty staff
Feb. – Apr. 2008
Teaching assistant. Department of Marine Sciences, University of the Aegean
Training of early-stage researchers in MATLAB programming. Marie Curie ECOSUMMER network
Sep. 2005 – Feb. 2006
Teaching assistant in underwater acoustics. Undergraduate course, Department of Marine Sciences,
University of the Aegean
Preparatory and assistant lecturing work in laboratory sessions on acoustic hardware & signal analysis
Mar. 2003 – Jun. 2004
Hydrographic vessel crew. Hellenic navy hydrographic division, R/V Naftilos (15-month service)
Deployment of hydrographic equipment, vessel steering duties during hydrographic surveys
RESEARCH EXPERIENCE
2013 – today
BEACHTOUR: Synergy for the sustainable development and safety of the Hellenic Tourist
Beaches. Greek Secretariat for Research and Technology
Development of optical systems for remote beach monitoring, MATLAB image processing
2013 – today
Spatial data infrastructure of University of the Aegean. European Regional Development Fund
Organization and documentation of 4D acoustic data for online spatial information services
2012 – 2013
Characterization of North Atlantic right whale vocalizations and the acoustic propagation
characteristics of the critical Southeast habitat. Florida Atlantic University, USA
Passive acoustics data collection and analysis, development of detection & classification algorithms of
right whale vocalizations, acoustic propagation modelling
2012
HERA: Health and Environmental Risk Assessment of bottlenose dolphin populations
inhabiting coastal regions of Florida and South Carolina, Florida Atlantic University, USA
Bioacoustics
2009 – 2010
Investigation of oceanographic and fishery characteristics of the Psara area, Aegean
archipelago. Prefecture of Chios, Greece
Software development, hydroacoustic survey design, bottom classification, fisheries data processing
2004 – 2008
FADIO: Fish Aggregating Devices as Instrumented Observatories of pelagic ecosystems.
European Commission, Research Directorates General
Lead software developer for acquisition, visualization and processing of omnidirectional multibeam
sonar data in MATLAB, acoustic data analysis, field data acquisition (Indian Ocean, Seychelles)
2007– 2008
FishSAT: Investigation of the migratory patterns of large pelagic fish of the Aegean based on
fishing effort distribution data and environmental parameters. Greek Ministry of Rural
Development
Software development, fishery landings data analysis
2006 – 2007
Special environmental assessment for the NATURA 2000 network areas, “Marine area of
Methoni Strait - GR2330007”. Perfecture of Messinia, Greece
Bottom classification, data processing
2005 – 2006
IMAS: Development of an Integrated Management System to support the sustainability of Greek
Fisheries resources. Greek Secretariat for Research and Technology
Hydroacoustic data analysis, Data management, Statistical analysis
2004 – 2005
THALATTA: Ocean Acoustics Technology and Development research network. Greek
Secretariat for Research and Technology
Organization of educational seminars, fisheries acoustics data analysis
PUBLICATIONS
Scientific papers and Book chapters
Trygonis V., Gerstein E.. Moir, J., & McCulloch, S. (2013). Vocalization characteristics of North Atlantic right
whale surface active groups in the calving habitat, southeastern United States. Journal of the Acoustical Society of
America, 134, in press.
Tamvakis, A., Spatharis, S., Trygonis, V., Myritzis J. & Tsirtsis, G. (2013). Optimizing biodiversity prediction from
abiotic parameters. Environmental Modelling and Software, in press.
Gerovasileiou, V.*, Trygonis, V.*, Sini, M., Koutsoubas, D. & Voultsiadou E. (2013). Three dimensional mapping
of marine caves using a handheld echosounder. Marine Ecology Progress Series, 486: 13–22.
*these authors contributed equally
Trygonis, V. & Sini, M. (2012). photoQuad: a dedicated seabed image processing software, and a comparative
error analysis of four photoquadrat methods. Journal of Experimental Marine Biology and Ecology, 424-425, 99108.
Georgakarakos S., Trygonis V. & Haralabous J. (2011). Accuracy of acoustic methods in fish stock assessment
In: Sonar Systems , ed. Kolev N., 275-298, InTech Publishing 2011.
Trygonis, V., Georgakarakos, S., & Simmonds, E.J. (2009). An operational system for automatic school
identification on multibeam sonar echoes. ICES Journal of Marine Science, 66: 935-949.
Brehmer, P., Georgakarakos, S., Josse, E., Trygonis, V., & Dalen, J. (2007). Adaptation of fisheries sonar for
monitoring schools of large pelagic fish: dependence of schooling behaviour on fish finding efficiency. Aquatic
Living Resources (Special Issue), 20: 377-384.
Brehmer, P., Sancho, G., Josse, E., Taquet, M., Georgakarakos, S., Itano, D., Moreno, G., Palud, P., Trygonis,
V., Aumeeruddy, R., Girard, C., Dalen, J., Dagorn, L., & Gerlotto, F. (2009). Monitoring fish communities at drifting
FADs: an autonomous system for data collection in an ecosystems approach. ICES CM 2009/FTC:01.
Trygonis, V., & Georgakarakos, S. (2007). Investigation of school speed measurement errors by simulation. ICES
CM 2007/FTC:09.
Proceedings (selected)
Gerstein E., Trygonis, V., McCulloch, S., Moir, J., & Kraus, S. (2013). Female North Atlantic right whales produce
gunshot sounds. North Atlantic Right whale Consortium. November 11-14, New Bedford, Massachusetts, USA.
Gerovasileiou, V., Trygonis, V., Sini, M., Koutsoubas, D. & Voultsiadou E. A rapid method for 3D mapping and
visualization of marine cave topography. (2013). 3rd International Workshop "Research in Shallow Marine and
Fresh Water Systems". February 14-15, Bremen, Germany.
Gerstein E., Trygonis, V., Moir, J., Hain, J. & McCulloch, S. Characterizing the vocalizations used by North
Atlantic right whales in their critical southeast habitat (2012). North Atlantic Right whale Consortium. November
13-14, New Bedford, Massachusetts, USA.
Sini, M., Trygonis, V., Gerovassileiou, V., Voultsiadou E., Chintiroglou Ch., & Koutsoubas, D. (2011).
Investigating biodiversity of sublittoral sciaphilic communities in the NE Aegean Sea, through the use of a
photographic method. 5th International Conference of the International Biogeography Society, Crete, Jan. 2011.
Trygonis, V., Georgakarakos, S., & Brehmer, P. (2010). Exploitation des données issues d’un sonar
omnidirectionnel: vers une solution automatisée et intelligente. Seatechweek 2010 International Marine Science
and Technology, Brest, June 2010.
Trygonis, V. & Georgakarakos, S. (2007). Development of a system for monitoring and quantitative estimation of
pelagic schools based on multibeam sonars. In: Proceedings of the 13th National Ichthyologists Conference,
September 2007. Mytilene, Lesvos. pp. 257-260.
Kapelonis, Z., Trygonis, V., & Georgakarakos, S. (2007). Tuna biomass estimation using multibeam sonars. In:
Proceedings of the 13th National Ichthyologists Conference, September 2007. Mytilene, Lesvos. pp. 261-264.
Brehmer, P., Georgakarakos, S., Trygonis, V., & Josse, E. (2006). Medium range omnidirectional multibeam
sonar observation of fish schools around drifting FADs. In: Proceedings of the 8th European Conference on
Underwater Acoustics (ECUA), June 2006. Carvoeiro, Portugal. 7 pp.
Dagorn, L., Holland, K., Dalen, J., Brault, P., Vrignaud, C., Josse, E., Moreno, G., Brehmer, P., Nottestad, L.,
Georgakarakos, S., Trygonis, V., Taquet, M., Aumeeruddy, R., Girard, C., Itano, O., & Sancho, G. (2006). New
instruments to observe pelagic fish around FADs: satellite-linked acoustic receivers and buoys with sonar and
cameras. In: Proceedings of the Australian Society for Fish Biology Workshop, Cutting-Edge Technologies in Fish
and Fisheries Science, August 2006. Hobart, Tasmania, pp. 37-40.
Podiadis V., Dosi A., Verroiopoulou A., Trivourea M., Reichelt M., Hayes Tieken R.C., Brooke B., Sini M.,
Trygonis V., Mumme C., Genov T., Zlatar V., Büehler D., Fourniotis P., Pavlatos F., Prichard D., & Verroiopoulos
G. (2003). The striped dolphins of the gulf of Korinth, 1996-2002: a comparative study. Proceedings of the 17th
Conference of the European Cetacean Society, March 2003. Las Palmas, Gran Canaria.
OTHER ACTIVITIES
Reviewer for the Journal of Marine & Freshwater Research (CSIRO Publishing, impact factor: 1.65)
Technical Chamber of Greece, member and licensed engineer
COMPUTER SKILLS
Programming
Scientific software
MATLAB/Simulink programming and application development expert, good command of HTML & PHP,
some experience with Java and C
Proficient use of MATLAB, STATISTICA, SPSS, SonarData Echoview, Raven Pro
LANGUAGES
Greek
English
Mother language
Professional level, Certificate of Proficiency in English / University of Cambridge, Certificate of
Proficiency in English / University of Michigan