Larval fish assemblages in coastal waters of central Greece: reflections of topographic and oceanographic heterogeneity


  • Stylianos Somarakis Hellenic Centre for Marine Research
  • Stamatina Isari Hellenic Centre for Marine Research
  • Athanassios Machias Hellenic Centre for Marine Research



fish larvae, assemblages, spatial distribution, Aegean Sea, Ionian Sea, eastern Mediterranean


Patterns in the mesoscale distribution of larval fish in the coastal waters of central Greece, an area of high topographic and bathymetric complexity, were analysed using samples collected during two ichthyoplankton surveys in July 1998 and June 1999. Salinities were lower in the eastern (Aegean) part of the study area due to the influence of waters originating from the Black Sea. In this region, larvae of many epipelagic and benthopelagic (typically summer spawning) species were less abundant in June 1999, when waters were significantly cooler, compared to July 1998. Multivariate analyses identified ‘neritic’ and ‘pelagic’ groups of stations dominated by larvae of epipelagic/bethopelagic (typically shelf dwelling) and mesopelagic species. In the west (Ionian Sea), a prominent third group of stations located in the deep and highly enclosed Korinthiakos Gulf was also defined with very high abundances of mesopelagic fish larvae. However, the genera Cyclothone and Vinciguerria that dominated the neighbouring offshore assemblage of the Ionian Sea were absent from this gulf. In the study area, Korinthiakós Gulf ( > 900 m) and North Evoikos ( > 400 m) Gulf comprise unique ‘fjord-like’ ecosystems in the Mediterranean with increased productivity and significantly cooler deep waters compared to adjacent open sea basins.


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Badcock, J. and N.R. Merrett. - 1976. Midwater fishes in the eastern North Atlantic - I. Vertical distribution and associated biology in 30°N, 23°W, with developmental notes on certain myctophids. Prog. Oceanogr., 7: 3-58.

Clarke, K.R. and R.M. Warwick. - 1994. Change in Marine Communities: an Approach to Statistical Analysis and Interpretation. Natural Environment Research Council, UK, 144 pp.

Cuttitta, A., A. Arigo, G. Basilone, A. Bonanno, G. Buscaino, L. Rollandi, J. Garcia Lafuente, A. Garcia, S. Mazzola and B Patti. - 2004. Mesopelagic fish larvae species in the Strait of Sicily and their relationships to main oceanographic events. Hydrobiologia, 527: 177-182.

Doyle, M.J., W.W. Morse and A.W.Jr. Kendall. - 1993. A comparison of larval fish assemblages in the temperate zone of the northeast Pacific and northwest Atlantic oceans. Bull. Mar. Sci., 53: 588-644.

Doyle, M.J., S.J. Picquelle, K.L. Mier, M.C. Spillane and N.A. Bond. - 2009. Larval fish abundance and physical forcing in the Gulf of Alaska, 1981-2003. Prog. Oceanogr., 80: 163-187.

Frank, K.T. and W.C. Leggett. - 1983. Multispecies larval fish associations: accident or adaptation? Can. J. Fish. Aquat. Sci., 40: 754-762.

Friligos, N., A. Theocharis and D. Georgopoulos. - 1985. Preliminary chemical and physical observations during summer 1980 on a silled embayment in the Ionian Sea. Vie Milieu, 35: 115-125.

Gauch, Jr.H.G. - 1982. Multivariate Analysis in Community Ecology. Cambridge University Press, Cambridge, 298 pp.

Giannoulaki, M., A. Machias, C. Koutsikopoulos, J. Haralabous, S. Somarakis and N. Tsimenides. - 2003. Effect of coastal topography on the spatial structure of the populations of small pelagic fish. Mar. Ecol. Prog. Ser., 265: 243-253.

Hosie, G.W. and T.G. Cochran. - 1994. Mesoscale distribution patterns of macrozooplankton communities in Prydz bay, Antarctica - January to February 1991. Mar. Ecol. Prog. Ser., 106: 21-39.

Isari, S., A. Ramfos, S. Somarakis, C. Koutsikopoulos, A. Kallianiotis and N. Fragopoulu. - 2006. Mesozooplankton distribution in relation to hydrology of the Northeastern Aegean Sea (eastern Mediterranean). J. Plankton Res., 28: 241-255.

Isari, S., S. Psarra, P. Pitta, P. Mara, M.O. Tomprou, A. Ramfos, S. Somarakis, A. Tselepides, C. Koutsikopoulos and N. Fragopoulu. - 2007. Differential patterns of mesozooplankters´ distribution in relation to physical and biological variables of the northeastern Aegean Sea (eastern Mediterranean). Mar. Biol., 151: 1035-1050.

Isari, S., N. Fragopoulu and S. Somarakis. - 2008. Interannual variability in horizontal patterns of larval fish assemblages in the northeastern Aegean Sea (eastern Mediterranean) during early summer. Estuar. Coast. Shelf. Sci., 79: 607-619.

Karageorgis, A.P., C. Anagnostou, T. Kanellopoulos and R.O. Hallberg. - 2006. Carbonate mineral deposits in Hellenic plaeolakes during the last glacial period. Proceeding of the 8th Panhellenic Symposium of Oceanography and Fisheries, pp. 801-805.

Keane, J.P. and F.J. Neira. - 2008. Larval fish assemblages along the south-eastern Australian shelf: linking mesoscale non-depth-discriminate structure and water masses. Fish. Oceanogr., 17: 263-280.

Koutrakis, E.T., A.A Kallianiotis and A.C. Tsikliras. - 2004. Temporal patterns of larval fish distribution and abundance in a coastal area of northern Greece. Sci. Mar., 68: 585-595.

Kruskal, J.B. and M. Wish. - 1978. Multidimensional scaling. Sage Publications, Beverly Hills.

Laprise, R. and P. Pepin. - 1995. Factors influencing the spatio-temporal occurrence of fish eggs and larvae in a northern, physically dynamic coastal environment. Mar. Ecol. Prog. Ser., 122: 73-92.

Lascaratos, A., E. Salusti and G. Papageorgaki. - 1989. Wind-induced upwellings and currents in the Gulfs of Patras, Nafpaktos and Korinthos, western Greece. Oceanol. Acta, 12: 159-164.

Lejeusne, C., P. Chevaldonne, C. Pergent-Martini, C.F. Boudouresque and T. Perez. - 2009. Climate change effects on a miniature ocean: the highly diverse, highly impacted Mediterranean Sea. Trends Ecol. Evol., 25: 250-260.

Machias, A., K.I. Stergiou, S. Somarakis, V.S. Karpouzi and A. Kapantagakis.- 2008. Trends in trawl and purse seine catch rates in the north-eastern Mediterranean. Medit. Mar. Sci., 9: 49-65.

Moser, H.G. and P.E. Smith. - 1993. Larval fish assemblages and oceanic boundaries. Bull. Mar. Sci., 53: 283-289.

Motos Izeta, L. - 1985. The larval development of the southern silvery pout Gadiculus argenteus argenteus Guichenot (1850). J. Plankton Res., 7: 937-946.

Olivar, M.P., M. Emelianov, F. Villate, I. Uriarte, F. Maynou, I. Alvarez and E. Morote. - 2010. The role of oceanographic conditions and plankton availability in larval fish assemblages off the Catalan coast (NW Maditerranean). Fish. Oceanogr., 19: 209-229.

Poulos, S.E., P.G. Drakopoulos and M.B. Collins. - 1997. Seasonal variability in sea surface oceanographic conditions in the Aegean Sea (Eastern Mediterranean): an overview. J. Mar. Syst., 13: 225-244.

Ramfos, A., S. Somarakis, C. Koutsikopoulos and N. Fragopoulu. - 2005. Summer mesozooplankton distribution in coastal waters of central Greece (eastern Mediterranean). I. Hydrology and group composition. J. Mar. Biol. Assoc. U.K., 85: 755-764.

Sabatés, A. - 1990. Distribution pattern of larval fish populations in the Northwestern Mediterranean. Mar. Ecol. Prog. Ser., 59: 75-82.

Sabatés, A. and M. Maso. - 1992. Unusual larval fish distribution pattern in a coastal zone of the western Mediterranean. Limnol. Oceanogr., 37: 1252-1260.

Sabatés, A. and M. P. Olivar. - 1996. Variation of larval fish distributions associated with variability in the location of a shelf-slope front. Mar. Ecol. Prog. Ser., 135: 11-20.

Sabatés, A., M.P. Olivar, J. Salat, I. Palomera and F. Alemany. - 2007. Physical and biological processes controlling the distribution of fish larvae in the NW Mediterranean. Prog. Oceanogr., 74: 355-376.

Somarakis, S. and E. Maraveya. - 2001. Covariation in mean abundance of larval myctophids and zooplankton biovolumes in the NE Aegean Sea. Rapp. Com. Inter. Mer. Médit., 36: 325.

Somarakis, S. and N. Nikolioudakis. - 2007. Oceanographic habitat, growth and mortality of larval anchovy (Engraulis encrasicolous) in the northern Aegean Sea (eastern Mediterranean). Mar. Biol., 152: 1143-1158.

Somarakis, S., B. Catalano and N. Tsimenides. - 1998. Catchability and retention of larval European anchovy, Engraulis encrasicolus, with bongo nets. Fish. Bull., 96: 917-925.

Somarakis, S., E. Maraveya and N. Tsimenides. - 2000. Multispecies ichthyoplankton associations in epipelagic species: Is there any intrinsic adaptive function? Belgian J. Zool., 130: 125-129.

Somarakis, S., P. Drakopoulos and V. Filippou. - 2002. Distribution and abundance of larval fishes in the northern Aegean Sea -eastern Mediterranean- in relation to early summer oceanographic conditions. J. Plankton Res., 24: 339-357.

Somarakis, S., D.E. Tsianis, A. Machias and K.I. Stergiou. - 2006. An overview of biological data related to anchovy and sardine stocks in Greek waters. In: M.L.D. Palomares, K.I. Stergiou, D. Pauly (eds.), Fishes in Databases and Ecosystems. Fisheries Centre Research Reports 14. Fisheries Centre, University of British Columbia, pp. 56-64.

Somarakis, S., A. Ramfos, A. Palialexis and V.D. Valavanis. - in press. Contrasting multispecies patterns in larval fish production trace inter-annual variability in oceanographic conditions over the N.E. Aegean Sea continental shelf (eastern Mediterranean). Hydrobiologia.

Stergiou, K.I., E.D. Christou, D. Georgopoulos, A. Zenetos and C. Souvermezoglou. - 1997. The Hellenic Seas: Physics, chemistry, biology and fisheries. Oceanogr. Mar. Biol. Ann. Rev., 35: 415-538.

Tsikliras, A.C., E.T. Koutrakis, G.K. Sylaios and A.A. Kallianiotis. - 2009. Summer distribution of fish larvae in northern Aegean Sea. J. Mar. Biol. Assoc. U.K., 89: 1137-1146.

Tsikliras, A.C., E. Antonopoulou and K.I. Stergiou. - 2010. Spawning period of Mediterranean marine fishes. Rev. Fish Biol. Fish., 20: 499-538.

Tzanatos, E., E. Dimitriou, G. Katselis, M. Georgiadis and C. Koutsikopoulos. - 2005. Composition, temporal dynamics and regional characteristics of small-scale fisheries in Greece. Fish Res., 73: 147-158.

Tzanatos, E., S. Somarakis, G. Tserpes and C. Koutsikopoulos. - 2006. Identifying and classifying small-scale fisheries metiers in the Mediterranean: A case study in the Patraikos Gulf, Greece. Fish Res., 81: 158-168.




How to Cite

Somarakis S, Isari S, Machias A. Larval fish assemblages in coastal waters of central Greece: reflections of topographic and oceanographic heterogeneity. scimar [Internet]. 2011Sep.30 [cited 2022Oct.3];75(3):605-18. Available from:




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