Τμήμα Ωκεανογραφίας και Θαλασσίων Βιοεπιστημών

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Vasilis Trygonis
Title:
Assistant Professor
Affiliation:
Department of Marine Sciences
Office:
B.17
Office hours:
09:00-18:30
Phone:
(+30) 22510 36831
E-mail:
vtrygonis@aegean.gr
Website:
https://orcid.org/0000-0001-9590-0391
Curriculum vitae:
CV

Research

My research focuses on the applications of hydroacoustic technology to marine ecology, and the acoustic and optical methods to underwater sampling. I specialize on fisheries acoustics, on acoustic fish stock assessment, on debiasing/simulation techniques of the acoustic measurement, and on scientific software development. My research interests also cover topics of fisheries management, marine bioacoustics, and passive acoustic monitoring systems.

Teaching

  • At the undergraduate level, I teach the courses Hydroacoustic Technology, Special Topics in Bioacoustics & Marine Mammals, Fisheries Management, and I participate to the data analysis workshops of Fisheries Biology.
  • At the graduate level, I coordinate (and teach, in cooperation with other faculty members) the course Marine Biological Resources – Fisheries and Aquaculture, and participate to the teaching of Applied Marine Ecology.

Professional activities

  • 2019–today: Assistant Professor, Department of Marine Sciences, University of the Aegean.
  • 2015–2018: Adjunct Lecturer, Department of Marine Sciences, University of the Aegean.
  • 2012–2013: Faculty Research Associate, Harbor Branch Oceanographic Institute, Florida Atlantic University (USA).

Selected publications

Galanos V, Trygonis V, Mazaris AD, Katsanevakis S, (2025). A low-cost passive acoustic toolkit for underwater recordings. Sensors 25(23), 7306. doi: 10.3390/s25237306

Fuentes Rivera Escalante M, Galanos V, Trygonis V, (2025). The underwater noise footprint of bottom trawling in the National Marine Park of Alonnisos, Greece. Thalassas 41, 192. doi: 10.1007/s41208-025-00946-9

Brady B, Hedwig D, Trygonis V, Gerstein E, (2020). Classification of Florida manatee (Trichechus manatus latirostris) vocalizations. Journal of the Acoustical Society of America 147, 1597–1606. doi: 10.1121/10.0000849

Brehmer P, Sancho G, Trygonis V, Itano D, Dalen J, Fuchs A, Faraj A, Taquet M, (2019). Towards an autonomous pelagic observatory: experiences from monitoring fish communities around drifting FADs. Thalassas 35, 177–189. doi: 10.1007/s41208-018-0107-9

Trygonis V, Kapelonis Z, (2018). Corrections of fish school area and mean volume backscattering strength by simulation of an omnidirectional multi-beam sonar. ICES Journal of Marine Science 75, 1496–1508. doi: 10.1093/icesjms/fsy009

Dimitriadis C, Sini M, Trygonis V, Gerovasileiou V, Sourbés L, Koutsoubas D, (2018). Assessment of fish communities in a Mediterranean MPA: can a seasonally enforced no-take area provide effective protection? Estuarine, Coastal and Shelf Science 207, 223–231. doi: 10.1016/j.ecss.2018.04.012

Trygonis V, Georgakarakos S, Dagorn L, Brehmer P, (2016). Spatiotemporal distribution of fish schools around drifting fish aggregating devices. Fisheries Research 177, 39–49. doi: 10.1016/j.fishres.2016.01.013

Gerstein E, Trygonis V, McCulloch S, Moir J, Kraus S, (2014). Female North Atlantic right whales produce gunshot sounds. Journal of the Acoustical Society of America 135, 2369. doi: 10.1121/1.4877814

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, 4518−4531. doi: 10.1121/1.4824682

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. doi: 10.3354/meps10374

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, 99−108.  doi: 10.1016/j.jembe.2012.04.018

Trygonis V, Georgakarakos S, Simmonds EJ, (2009). An operational system for automatic school identification on multibeam sonar echoes. ICES Journal of Marine Science 66, 935−949. doi: 10.1093/icesjms/fsp135

Επιπλέον σύνδεσμοι

photoQuad: www.mar.aegean.gr/sonarlab/photoquad