Browsing by Author "Giakoumi, S"

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    Unpublished Mediterranean and Black Sea records of marine alien, cryptogenic, and neonative species
    Ragkousis, M; Zenetos, A; Ben Souissi, J; Hoffman, R; Ghanem, R; Taskin, E; Muresan, M; Karpova, E; Slynko, E; Dagli, E; Fortic, A; Surugiu, V; Macic, V; Trkov, D; Bahri, WR; Tsiamis, K; Ramos-Espla, AA; Petovic, S; Ferrario, J; Marchini, A; Sconfietti, R; Ammar, I; Alo, A; Edelist, D; Begun, T; Teaca, A; Tari, G; Huseyinoglu, MF; Karachle, PK; Dogrammatzi, A; Apostolopoulos, GA; Crocetta, F; Kytinou, E; Digenis, M; Skouradakis, G; Tomas, F; Bariche, M; Kaminas, A; Konida, K; Deidun, A; Marrone, A; Fraschetti, S; Mihneva, V; Bianchi, CN; Morri, C; Gerovasileiou, V; Lipej, L; Sini, M; Mangialajo, L; Zotou, M; Skolka, M; Azzurro, E; Vella, A; Dailianis, T; Grigoriou, P; Jimenez, C; Tsirintanis, K; Oikonomidis, G; Mancini, E; Papadakis, O; Di Martino, V; Chatzigeorgiou, G; Ben Amor, MM; Vernadou, E; Arda, Y; Minasidis, V; Azzola, A; Hadjioannou, L; Montefalcone, M; Baldacchino, Y; Stancanelli, B; Bonifazi, A; Occhipinti-Ambrogi, A; Smeraldo, S; Evans, J; Kondylatos, G; Falautano, M; Castriota, L; Lamprou, A; Rizgalla, J; Mavric, B; Papadimitriou, E; Kersting, DK; Schembri, PJ; Khamassi, F; Nikolaou, A; Ballesteros, E; Dimitriadis, C; García, M; Anastasiadis, A; Kalogirou, S; Nalmpanti, M; Altamirano, M; Grech, D; Mavrouleas, D; Vella, N; Darmanin, SA; Dragicevic, B; Poursanidis, D; Tsatiris, A; Corsini-Foka, M; Orlando-Bonaca, M; Insacco, G; Tsalapatis, A; Scannella, D; Tiralongo, F; Verdura, J; Vitale, S; Valsamidis, MA; Bazairi, H; Mannino, AM; Virgili, R; Coccia, FC; El Zrelli, R; Nikolidakis, S; Rabaoui, LJ; Yapici, S; Zaouali, J; Zava, B; Agrotis, N; Bilecenoglu, M; Çinar, ME; Moraitis, ML; Albano, PG; Kaddouri, N; Kosma, I; Falsone, F; Fossati, V; Geraci, ML; Zamuda, LL; Mancuso, FP; Petrou, A; Resaikos, V; Aydin, I; Batjakas, IE; Bos, AR; El Ouamari, N; Giallongo, G; Kampouris, TE; Ounifi-Ben Amor, K; Dogan, A; Dulcic, J; Okudan, ES; Rilov, G; Rosso, A; Royo, L; Selfati, M; Gaglioti, M; Giakoumi, S; Kousteni, V; Micu, D; Nicoara, M; Orfanidis, S; Papatheodoulou, M; Tempesti, J; Triantaphyllou, M; Tsourou, T; Yalgin, F; Baltag, E; Cerim, H; Filiz, H; Georgiadis, CG; Papadamakis, P; Rammou, DL; Samargiu, MD; Sciuto, F; Sinopoli, M; Türker, A; Chiarore, A; Tamburello, L; Karray, S; Hassen, B; Katsanevakis, S
    To enrich spatio-temporal information on the distribution of alien, cryptogenic, and neonative species in the Mediterranean and the Black Sea, a collective effort by 173 marine scientists was made to provide unpublished records and make them open access to the scientific community. Through this effort, we collected and harmonized a dataset of 12,649 records. It includes 247 taxa, of which 217 are Animalia, 25 Plantae and 5 Chromista, from 23 countries surrounding the Mediterranean and the Black Sea. Chordata was the most abundant taxonomic group, followed by Arthropoda, Mollusca, and Annelida. In terms of species records, Siganus luridus, Siganus rivulatus, Saurida lessepsianus, Pterois miles, Upeneus moluccensis, Charybdis (Archias) longicollis, and Caulerpa cylindracea were the most numerous. The temporal distribution of the records ranges from 1973 to 2022, with 44% of the records in 2020-2021. Lethrinus borbonicus is reported for the first time in the Mediterranean Sea, while Pomatoschistus quagga, Caulerpa cylindracea, Grateloupia turuturu, and Misophria pallida are first records for the Black Sea; Kapraunia schneideri is recorded for the second time in the Mediterranean and for the first time in Israel; Prionospio depauperata and Pseudonereis anomala are reported for the first time from the Sea of Marmara. Many first country records are also included, namely: Amathia verticillata (Montenegro), Ampithoe valida (Italy), Antithamnion amphigeneum (Greece), Clavelina oblonga (Tunisia and Slovenia), Dendostrea cf. folium (Syria), Epinephelus fasciatus (Tunisia), Ganonema farinosum (Montenegro), Macrorhynchia philippina (Tunisia), Marenzelleria neglecta (Romania), Paratapes textilis (Tunisia), and Botrylloides diegensis (Tunisia).
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    New Mediterranean Biodiversity Records (June 2012)
    Nicolaidou, A; Alongi, G; Aydogan, O; Catra, M; Cavas, L; Cevik, C; Dosi, A; Circosta, V; Giakoumi, S; Giménez-Casalduero, F; Filiz, H; Izquierdo-Muñoz, A; Kalogirou, S; Konstantinidis, E; Kousteni, V; Kout, J; Legaki, A; Megalofonou, P; Ovalis, P; Paolillo, G; Paschos, I; Perdikaris, C; Poursanidis, D; Ramos-Esplá, AA; Reizopoulou, S; Sperone, E; Taskin, E; Tripepi, S; Vázquez-Luis, M
    The present work reports on the extended distribution of nineteen species in the Mediterranean. These are: Upeneus pori (Fish:Turkey), Bursatella leachii (Mollusca, Opisthobranchia: eastern coast of Spain), Sparisoma cretense (Fish: Ionian coast of Greece), Pseudobryopsis myura (Chlorophyta:Turkey), Aplysia dactylomela (Mollusca, Opisthobranchia: Karpathos island, and Kyklades Archipelago, Greece), Asparagopsis armata and Botryocladia madagascariensis (Rhodophyta: South Peloponnesos, Greece), Oxynotus centrina (Fish: Greece), Caulerpa racemosa var. cylindracea (Chlorophyta), Stypopodium schimperi (Phaeophyta) Siganus luridus and Stephanolepis diaspros (Fish) Percnon gibbesi (Decapoda, Brachyura) (Kyklades Archipelago, Greece), Cerithium scabridum (Mollusca, Prosobranchia: Anavissos: Greece) and Cerithium renovatum (Mollusca, Prosobranchia: N. Kriti), Cassiopea andromeda (Scyphomedusa: Rhodos Island, Greece), Abra tenuis (Mollusca Bivalvia: Vouliagmeni Lake, Greece) Lagocephalus lagocephalus (Fish: Calabrian coast, Italy) and Plocamopherus ocellatus (Mollusca, Opisthobranchia: Iskenderun Bay, Turkey).
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    Ecoregion-Based Conservation Planning in the Mediterranean: Dealing with Large-Scale Heterogeneity
    Giakoumi, S; Sini, M; Gerovasileiou, V; Mazor, T; Beher, J; Possingham, HP; Abdulla, A; Çinar, ME; Dendrinos, P; Gucu, AC; Karamanlidis, AA; Rodic, P; Panayotidis, P; Taskin, E; Jaklin, A; Voultsiadou, E; Webster, C; Zenetos, A; Katsanevakis, S
    Spatial priorities for the conservation of three key Mediterranean habitats, i.e. seagrass Posidonia oceanica meadows, coralligenous formations, and marine caves, were determined through a systematic planning approach. Available information on the distribution of these habitats across the entire Mediterranean Sea was compiled to produce basin-scale distribution maps. Conservation targets for each habitat type were set according to European Union guidelines. Surrogates were used to estimate the spatial variation of opportunity cost for commercial, non-commercial fishing, and aquaculture. Marxan conservation planning software was used to evaluate the comparative utility of two planning scenarios: (a) a whole-basin scenario, referring to selection of priority areas across the whole Mediterranean Sea, and (b) an ecoregional scenario, in which priority areas were selected within eight predefined ecoregions. Although both scenarios required approximately the same total area to be protected in order to achieve conservation targets, the opportunity cost differed between them. The whole-basin scenario yielded a lower opportunity cost, but the Alboran Sea ecoregion was not represented and priority areas were predominantly located in the Ionian, Aegean, and Adriatic Seas. In comparison, the ecoregional scenario resulted in a higher representation of ecoregions and a more even distribution of priority areas, albeit with a higher opportunity cost. We suggest that planning at the ecoregional level ensures better representativeness of the selected conservation features and adequate protection of species, functional, and genetic diversity across the basin. While there are several initiatives that identify priority areas in the Mediterranean Sea, our approach is novel as it combines three issues: (a) it is based on the distribution of habitats and not species, which was rarely the case in previous efforts, (b) it considers spatial variability of cost throughout this socioeconomically heterogeneous basin, and (c) it adopts ecoregions as the most appropriate level for large-scale planning.