Stylianos Somarakis
EDUCATION
· 1991 B.Sc. in Biology from the University of Crete, Greece.
· 1993 M.Sc. in Marine Biology from the University of Crete, Greece
· 2000 Ph.D. in Marine Biology from the University of Crete, Greece.
Date of Birth: August 19, 1968
Nationality: Greek
Languages: Greek: Native language, English: Read, write and
speak very well, French: Read, write and speak well.
PROFESSIONAL EXPERIENCE
1991-: Research Scientist in the Institute of Marine Biology of Crete
2002-: Lecturer in the Biology Department of the University of Patras
During the last 10 years, I have been working on scientific disciplines such
as estimation of egg production and spawning biomass in small pelagic fishes,
larval fish assemblage structure and variability, reproductive strategies of
Mediterranean marine fishes, growth, mortality and transport of fish larvae
and the effects of environmental variability on the distribution, abundance
and productivity of fish populations.
I have contributed to numerous research projects funded by the EU or the Greek Government dealing with the application of fisheries independent methods for the estimation of anchovy and sardine stocks in the eastern Mediterranean, the collection and analysis of fisheries and biological data for the assessment of the Greek stocks and the interactions among fisheries, aquaculture and the environment.
PUBLICATIONS (1997-2002)
INTERNATIONAL JOURNALS
· Somarakis S, Kostikas I, Peristeraki N, Tsimenides N (1997) Fluctuating asymmetry in the otoliths of larval anchovy Engraulis encrasicolus and the use of developmental instability as an indicator of condition in larval fish. Marine Ecology Progress Series 151: 191-203
· Somarakis S, Kostikas I, Tsimenides N (1997) Fluctuating asymmetry in the otoliths of larval fish as an indicator of condition: conceptual and methodological aspects. Journal of Fish Biology 51 (Suppl A): 30-38
· Somarakis S, Tsimenides N (1997) A Daily egg Production Method biomass estimate of the northern Aegean Sea anchovy stock. In: Motos L. (ed) ‘Improvements of the Daily Egg Production Method techniques’. Ozeanografika 2: 133-148
· Somarakis S, Catalano B, Tsimenides N (1998) Catchability and retention of larval European anchovy, Engraulis encrasicolus, with bongo nets. Fishery Bulletin 96: 917-925
· Machias A, Somarakis S, Tsimenides N (1998) Bathymetric distribution and movements of red mullet Mullus surmuletus. Marine Ecology Progress Series, 166: 247-257
· Pavlidis M, Koumoundouros G, Stergioti A, Somarakis S, Divanach P, Kentouri M (2000) Evidence of temperature-dependent sex determination in the European Sea bass (Dicentrarchus labrax L.). Journal of Experimental Zoology 287: 225-232
· Somarakis S, Maraveya E, Tsimenides N (2000) Multispecies ichthyoplankton associations in epipelagic species: Is there any intrinsic adaptive function? Belgian Journal of Zoology 130 (Suppl 1): 125-129
· Loir M, Le Gac F, Somarakis S, Pavlidis M (2001) Sexuality and gonadal cycle of the common dentex (Dentex dentex) in intensive culture. Aquaculture 194: 363-381
· Machias A, Maraveya E, Pavlidis M, Somarakis S, Divanach P (2002) Validation of annuli on scales and otoliths of common dentex (Dentex dentex). Fisheries Research 54: 287-294
· Somarakis S, Koutsikopoulos C, Machias A, Tsimenides N (2002). Applying the Daily Egg Production Method to small stocks in highly heterogeneous seas. Fisheries Research 55: 193-204
· Somarakis S, Drakopoulos P, Filippou V (2002) Distribution and abundance of larval fishes in the northern Aegean Sea –eastern Mediterranean- in relation to early summer oceanographic conditions. Journal of Plankton Research 24(4): 339-357
· Somarakis S, Machias A (2002) Age, growth and bathymetric distribution of red pandora (Pagellus erithrinus) on the Cretan shelf (eastern Mediterranean). Journal of the Marine Biological Association of the United Kingdom 82: 149-160
· Stergiou KI, Machias A, Somarakis S, Kapantagakis A (in press) Can we define target species in Mediterranean trawl fisheries? Fisheries Research
· Machias ?, Somarakis S, Papadroulakis ?, Spedicato M-T, Suquet M, Lembo M, Divanach P (in press) Settlement of the wreckfish (Polyprion americanus). Marine Biology
CONFERENCE PROCEEDINGS
· Somarakis S, Machias A, Kapantagakis A, Tsimenides N (1997) Application of the Daily Egg Production Method (DEPM) for the estimation of the northern Aegean Sea anchovy stock in June 1995. Proceedings of the 5th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 43-46
· Machias A, Somarakis S, Giannoulaki M, Manousakis L, Kapantagakis A, Tsimenides N (1997) Estimation of the northern Aegean anchovy stock in June 1995 by means of hydroacoustics. Proceedings of the 5th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 47-50
· Somarakis S, Peristeraki N, Tsimenides N (1997) Otolith microstructure and growth of anchovy larvae in the N. Evoikos Gulf (eastern Mediterranean). Proceedings of the 5th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 50-54
· Maravelias CD, Machias A, Somarakis S, Tsimenides N (1997) Spatial distribution of pelagic species in the northern Aegean Sea: use of geostatistics and environmental variables. Proceedings of the 5th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 119-122
· Maraveya E, Machias A, Pavlidis M, Somarakis S, Divanach ?, Tsimenides ? (1998) Validation of annuli formation on scales and otoliths of common dentex (Dentex dentex). Proceedings of the 19th Panhellenic Conference of the Hellenic Society of Biological Sciences. p. 181-182
· Ramfos A, Koutsikopoulos C, Fragopoulou N, Machias A, Somarakis, S, Sorra V, Lykakis I (1999) Comparative study of zooplankton in inshore areas of Central Greece. Proceedings of the 20th Panhellenic Conference of the Hellenic Society of Biological Sciences. p. 257-258
· Ramfos A, Fragopoulou N, Koutsikopoulos C, Machias A, Somarakis S, Lykakis I (2000) Mesozooplankton community structure in the central Hellenic coastal zone in summer 1998. Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 1: 328-332
· Ramfos A, Koutsikopoulos C, Fragopoulou N, Machias A, Somarakis, S, Pyronovaki E, Lykakis I (2000) Hydrology and biological features in the coastal areas of Central Greece during the anchovy spawning period. Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 88-93
· Somarakis S, Machias A, Koutsikopoulos C, Maraveya E, Giannoulaki M, Tsimenides, N (2000) Distribution of anchovy and its spawning grounds off the central Aegean and Ionian Seas. Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 94-98
· Drakopoulos P, Somarakis S, Koutsikopoulos C, Machias A, Tsimenides N (2000) Advection and diffusion of the planktonic stages of anchovy, Engraulis encrasicolus, in the Ionian Sea. . Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 99-103
· Nikoloudakis G, Machias A, Somarakis S, Koutsikopoulos C, Tsimenides N (2000) Comparison of growth in two anchovy stocks. Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 104-108
· Machias A, Giannoulaki M, Somarakis S, Koutsikopoulos C, Manousakis L, Kapantagakis A, Tsimenides N (2000) In situ estimation of sardine and anchovy target strength. Proceedings of the 6th Panhellenic Symposium on Oceanography and Fisheries. Vol. 2: 180-184
· Ganias K, Somarakis S, Tsimenides N, Machias A, Theodorou A (2001) Oceanographic and biological factors affecting the egg size of sardine (Sardina pilchardus). Proceedings of the 23rd Panellenic Conference of the Hellenic Society of Biological Sciences, p. 30, 44
· Tserpes G, Peristeraki P, Somarakis S (2001) On the reproduction of swordfish (Xiphias gladius L.) in the Eastern Mediterranean. Col. Vol. Sci. Pap. ICCAT, 52: 740-744
· Stergiou KI, Machias A, Somarakis S, Kapantagakis A, Laurensen J (2001) Geographic diversification of the Greek fisheries. Proceedings of the 10th Panellenic Conference of Ichthyologists, p. 1-4
· Tzanatos E, Somarakis S, Machias A, Vavoulis D, Ramphos A, Koytsikopoulos C (2001) Comparative study of precision and cost of the use of Bongo and WP2 nets for the estimation of fish stocks. Proceedings of the 10th Panellenic Conference of Ichthyologists, p. 49-52
· Machias A, Giannoulaki M, Somarakis S, Koutsikopolos C, Manousakis L, Kapantagakis A, Tsimenides N (2001) Estimation of the anchovy (Engraulis encrasicolus) stocks in the central Aegean and Ionian Seas by means of hydroacoustics. Proceedings of the 10th Panellenic Conference of Ichthyologists, p. 57-60
· Giannoulaki M, Machias A, Somarakis S, Koutsikopoulos C, Manousakis L, Tsimenides N, (2001) Study of sardine (Sardina pilchardus Walb.) distribution in the central Aegean and Ionian Seas by hydroacoustics. Proceedings of the 10th Panellenic Conference of Ichthyologists, p. 61-64
· Ganias K, Somarakis S, Machias A, Koutsikopoulos C, Christopoulos P, Tsimenides N, Theodorou A (2001) Can simple gonadal indices be used to describe the reproductive condition of multiple spawners? Proceedings of the 10th Panellenic Conference of Ichthyologists. p. 97-100
· Ganias K, Somarakis S, Caragitsou E, Koutsikopoulos C, Machias A, Theodorou A (2001) Differential egg production of sardine off the central Hellenic coasts in December 1999. Rapp. Comm. int. Mer Medit. 36: 268
· Maraveya E, Somarakis S, Machias A (2001) Batch fecundity of anchovy, Engraulis encrasicolus, in the NE Aegean Sea. Rapp. Comm. int. Mer Medit. 36: 299
· Somarakis S, Maraveya E (2001) Covariation in mean abundance of larval myctophids and zooplankton biovolumes in the NE Aegean Sea. Rapp. Comm. int. Mer Medit. 36: 325
· Ganias K, Somarakis S, Machias A, Theodorou A (2002) The effect of atresia and postovulatory follicles on the gonosomatic index of sardine. Proceedings of the 24rd Panellenic Conference of the Hellenic Society of Biological Sciences
· Ganias K, Somarakis S, Koutsikopoulos C, Machias A, Theodorou A (2002) Seasonal variation of somatic and organ weight indices of sardine in the Aegean and Ionian Seas. Proc. 9th ICZEGAR. Book of Abstracts, p. 37
· Giannoulaki M, Machias A, Somarakis S (2002) Hydroacoustic investigation on the spatial distribution of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) in the North Aegean Sea in relation to environmental factors. Proc. 9th ICZEGAR. Book of Abstracts, p. 39
· Somarakis S (2002) Marked interannual differences in reproductive parameters and daily egg production of anchovy (Engraulis encrasicolus) in the northern Aegean Sea. Proc. 9th ICZEGAR. Book of Abstracts, p. 139
· Giannoulaki M, Machias A, Koutsikopoulos K, Haralambous J, Somarakis S, Tsimenides N (2002) Spatial structure of pelagic fish in Greek waters determined by acoustics. 6th Symposium of CIEM. Book of Abstracts, pp. 120-121
· Somarakis S, Drakopoulos P, Stergiou KI (2002) Larval fish associations in pelagic fishes trace interannual environmental variability in the NE Aegean Sea. In: Agostini V, Oliver P (eds) Environmental variability and small pelagic fisheries in the Mediterranean Sea. Informes y estudios COPEMED 8: 65
· Stergiou KI, Somarakis S, Machias A (2002) Anchovy and Sardine in Greek waters: a review of biological, ecological and fisheries aspects related to environmental variability. In: Agostini V, Oliver P (eds) Environmental variability and small pelagic fisheries in the Mediterranean Sea. Informes y estudios COPEMED 8: 66-68
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