Event Abstract

Native and alien ichthyofauna in coastal fishery of Rhodes (eastern Mediterranean) (2002-2010)

  • 1 Hellenic Centre for Marine Research, Greece

Rhodes Island (southeastern Aegean) is located in a geographically crucial region subjected to biological invasions. Among the 108 alien species recorded, 30 are fish, all of Indo-Pacific/Red Sea origin introduced via Suez through Lessepsian migration (Corsini-Foka et al., 2015; Corsini-Foka and Kondylatos, In press; Kondylatos and Corsini-Foka, In press). In this oligotrophic area, fishery production is limited, due to the paucity of species of commercial interest and their low abundance, while adapted infrastructures for fish landing and marketing are absent. Coastal fishery has dominated during the last twenty years (ELSTAT, 2015). Within 2002-2010, the Hydrobiological Station of Rhodes conducted experimental boat seining surveys, using exclusively a professional 12m fishing boat, at 5-30 m depth, in the Gulf of Trianda (sandy mud, Posidonia meadows). The 94 carried out hauls (7-18 hauls/year), produced a total fish biomass of approximately 4400 Kg, recording 97 fish (86 native, 11 alien) and 4 cephalopod species (3 native, 1 alien). Fish species ranged from 32 to 63/year, whereas aliens ranged from 5 to 8 species. Almost steadily present since 2002, were earlier colonizers such as Apogonichthyoides pharaonis, Siganus rivulatus, Siganus luridus, Stephanolepis diaspros and more recent ones as Pteragogus trispilus, Sphyraena chrysotaenia and Fistularia commersonii, while Lagocephalus sceleratus, firstly recorded in 2005, occurred regularly since 2007; the presence of Lagocephalus suezensis, Sphyraena flavicauda and Upeneus pori was scattered since their first records in 2004-2005. Alien fish commercially important are the Siganids, S. chrysotaenia and surprisingly F. commersonii. In terms of biomass per haul, alien fish ranged from 0 to 18.5 Kg, native from 1.5 to 182 Kg. Catches were dominated by Centracanthidae (Spicara spp.) and Sparidae (Boops boops), sometimes by other native such as Oblada melanura, Diplodus spp., Chromis Chromis and others. The present work aims to contribute in the limited literature on the demersal fish species assemblage of the SE Aegean over time, given the ongrowing influx of aliens in the area.

References

Corsini-Foka, M., Zenetos, A., Crocetta, F., Çinar, M.E., Koçak, F., Golani, D., et al. (2015). Inventory of alien and cryptogenic species of the Dodecanese (Aegean Sea, Greece): collaboration through COST Action training school. Manag. Biol. Invasion., 6, In press.
ELSTAT-Hellenic Statistic Authority (2015). http://www.statistics.gr
Corsini-Foka, M. and Kondylatos, G. (In press). First occurrence of the invasive Lionfish Pterois miles (Bennett, 1828) (Osteichthyes: Scorpaenidae) in the Aegean Sea. In: Crocetta, F. et al., New Mediterranean Biodiversity Records (October 2015), Med. Mar. Sci.
Kondylatos, G. and Corsini-Foka, M. (In press). Diadema setosum (Leske, 1778) moving west to the Hellenic Seas. In: Crocetta, F. et al., New Mediterranean Biodiversity Records (October 2015), Med. Mar. Sci.

Keywords: Rhodes, Eastern Mediterranean, fishery, boat-seining, Alien fish

Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015.

Presentation Type: Oral Presentation

Topic: Ecology, Conservation and Invasive Species

Citation: Corsini-Foka M and Kondylatos G (2015). Native and alien ichthyofauna in coastal fishery of Rhodes (eastern Mediterranean) (2002-2010). Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00069

Received: 12 Nov 2015; Published Online: 12 Nov 2015.

* Correspondence: Dr. Maria Corsini-Foka, Hellenic Centre for Marine Research, Rhodes, 85100, Greece, mcorsini@hcmr.gr

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