Browsing by Author "Gerovasileiou, V"

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    Unpublished Mediterranean and Black Sea records of marine alien, cryptogenic, and neonative species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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    Unpublished Mediterranean records of marine alien and cryptogenic species
    Katsanevakis, S; Poursanidis, D; Hoffman, R; Rizgalla, J; Rothman, SBS; Levitt-Barmats, Y; Hadjioannou, L; Trkov, D; Garmendia, JM; Rizzo, M; Bartolo, AG; Bariche, M; Tomas, F; Kleitou, P; Schembri, PJ; Kletou, D; Tiralongo, F; Pergent, C; Pergent, G; Azzurro, E; Bilecenoglu, M; Lodola, A; Ballesteros, E; Gerovasileiou, V; Verlaque, M; Occhipinti-Ambrogi, A; Kytinou, E; Dailianis, T; Ferrario, J; Crocetta, F; Jimenez, C; Evans, J; Ragkousis, M; Lipej, L; Borg, JA; Dimitriadis, C; Chatzigeorgiou, G; Albano, PG; Kalogirou, S; Bazairi, H; Espinosa, F; Ben Souissi, J; Tsiamis, K; Badalamenti, F; Langeneck, J; Noel, P; Deidun, A; Marchini, A; Skouradakis, G; Royo, L; Sini, M; Bianchi, CN; Sghaier, YR; Ghanem, R; Doumpas, N; Zaouali, J; Tsirintanis, K; Papadakis, O; Morri, C; Çinar, ME; Terrados, J; Insacco, G; Zava, B; Soufi-Kechaou, E; Piazzi, L; Ben Amor, KO; Andriotis, E; Gambi, MC; Ben Amor, MM; Garrabou, J; Linares, C; Fortic, A; Digenis, M; Cebrian, E; Fourt, M; Zotou, M; Castriota, L; Di Martino, V; Rosso, A; Pipitone, C; Falautano, M; García, M; Zakhama-Sraieb, R; Khamassi, F; Mannino, AM; Ktari, MH; Kosma, I; Rifi, M; Karachle, PK; Yapici, S; Bos, AR; Balistreri, P; Esplá, AAR; Tempesti, J; Inglese, O; Giovos, I; Damalas, D; Benhissoune, S; Huseyinoglu, MF; Rjiba-Bahri, W; Santamaría, J; Orlando-Bonaca, M; Izquierdo, A; Stamouli, C; Montefalcone, M; Cerim, H; Golo, R; Tsioli, S; Orfanidis, S; Michailidis, N; Gaglioti, M; Taskin, E; Mancuso, E; Zunec, A; Cvitkovic, I; Filiz, H; Sanfilippo, R; Siapatis, A; Mavric, B; Karaa, S; Türker, A; Monniot, F; Verdura, J; El Ouamari, N; Selfati, M; Zenetos, A
    Good datasets of geo-referenced records of alien species are a prerequisite for assessing the spatio-temporal dynamics of biological invasions, their invasive potential, and the magnitude of their impacts. However, with the exception of first records on a country level or wider regions, observations of species presence tend to remain unpublished, buried in scattered repositories or in the personal databases of experts. Through an initiative to collect, harmonize and make such unpublished data for marine alien and cryptogenic species in the Mediterranean Sea available, a large dataset comprising 5376 records was created. It includes records of 239 alien or cryptogenic taxa (192 Animalia, 24 Plantae, 23 Chromista) from 19 countries surrounding the Mediterranean Sea. In terms of records, the most reported Phyla in descending order were Chordata, Mollusca, Chlorophyta, Arthropoda, and Rhodophyta. The most recorded species was Caulerpa cylindracea, followed by Siganus luridus, Magallana sp. (cf. gigas or angulata) and Pterois miles. The dataset includes records from 1972 to 2020, with the highest number of records observed in 2018. Among the records of the dataset, Dictyota acutiloba is a first record for the Mediterranean Sea. Nine first country records are also included: the alga Caulerpa taxifolia var. distichophylla, the cube boxfish Ostracion cubicus, and the cleaner shrimp Urocaridella pulchella from Israel; the sponge Paraleucilla magna from Libya and Slovenia; the lumpfish Cyclopterus lumpus from Cyprus; the bryozoan Celleporaria vermiformis and the polychaetes Prionospio depauperata and Notomastus aberans from Malta.
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    New Alien Mediterranean Biodiversity Records (March 2020)
    Bariche, M; Al-Mabruk, SAA; Ates, MA; Büyük, A; Crocetta, F; Dritsas, M; Edde, D; Fortic, A; Gavriil, E; Gerovasileiou, V; Gökoglu, M; Huseyinoglu, MF; Karachle, PK; Kleitou, P; Kurt, TT; Langeneck, J; Lardicci, C; Lipej, L; Pavloudi, C; Pinna, M; Rizgalla, J; Özen, MR; Sedano, F; Taskin, E; Yildiz, G; Zangaro, F
    The current article presents 18 new records from seven Mediterranean countries. These records include one rhodophyte, four nudibranchs, two crustaceans, one stingray and 10 bony fishes. They are grouped by country as follows: Lebanon - first record of the Striped bass Morone saxatilis, the stingray Himantura leoparda, the Areolate grouper Epinephelus areolatus and the Spot-fin porcupinefish Diodon hystrix from various parts of the country; Turkey - first record of the invasive red alga Grateloupia turuturu from the sea of Marmara (region of Bandirma), the sea slug Goniobranchus obsoletus and the crab Arcania brevifrons from the Gulf of Antalya and the cladoceran Pleopis schmackeri from several locations along the Aegean Sea; Cyprus - first record of the alien sea slug Berthellina citrina from the region of Cape Greco and an observation of a butterflyfish Heniochus sp. from the northeastern side of the island; Greece - first record of the alien sea slug Anteaeolidiella lurana from the region of Heraklion in Crete and the record of the Atlantic spadefish Chaetodipterus faber and the Black surgeonfish Acanthurus cfr gahhm from Salamina Island; Slovenia - first record of the alien sea slug Thecacera pennigera from Izola; Italy - first record of the hybrid Striped bass (Morone saxatilis x Morone chrysops) from the northern Tyrrhenian Sea and a first record of the goldfish Carassius auratus from the region of Apulia; Libya - first record of the Red Sea goatfish Parupeneus forsskali and the African surgeonfish Acanthurus monroviae, respectively from the eastern (Al-Tamimi area) and the western shore (Al-Khums area).
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    New Mediterranean Biodiversity Records (July 2015)
    Tsiamis, K; Aydogan, Ö; Bailly, N; Balistreri, P; Bariche, M; Carden-Noad, S; Corsini-Foka, M; Crocetta, F; Davidov, B; Dimitriadis, C; Dragicevic, B; Drakulic, M; Dulcic, J; Escánez, A; Fernández-Alvarez, FA; Gerakaris, V; Gerovasileiou, V; Hoffman, R; Izquierdo-Gómez, D; Izquierdo-Muñoz, A; Kondylatos, G; Latsoudis, P; Lipej, L; Madiraca, F; Mavric, B; Parasporo, M; Sourbès, L; Taskin, E; Turker, A; Yapici, S
    The Collective Article 'New Mediterranean Biodiversity Records' of the Mediterranean Marine Science journal offers the means to publish biodiversity records in the Mediterranean Sea. The current article is divided in two parts, for records of native and alien species respectively. The new records of native species include: the neon flying squid Ommastrephes bartramii in the waters surrounding the island of Capri, Thyrrenian Sea; the bigeye thresher shark Alopias superciliosus in the Adriatic Sea; a juvenile basking shark Cetorhinus maximus caught off Piran (northern Adriatic); the deep-sea Messina rockfish Scorpaenodes arenai in the National Marine Park of Zakynthos (East Ionian Sea, Greece); and the oceanic puffer Lagocephalus lagocephalus in the Adriatic Sea. The new records of alien species include: the red algae Antithamnionella elegans and Palisada maris-rubri, found for the first time in Israel and Greece respectively; the green alga Codium parvulum reported from Turkey (Aegean Sea); the first record of the alien sea urchin Diadema setosum in Greece; the nudibranch Goniobranchus annulatus reported from the South-Eastern Aegean Sea (Greece); the opisthobranch Melibe viridis found in Lebanon; the new records of the blue spotted cornetfish Fistularia commersonii along the Alicante coast (Eastern Spain); the alien fish Siganus luridus and Siganus rivulatus in Lipsi Island, Dodecanese (Greece); the first record of Stephanolepis diaspros from the Egadi Islands Marine Protected Area (western Sicily); a northward expansion of the alien pufferfish Torquigener flavimaculosus along the southeastern Aegean coasts of Turkey; and data on the occurrence of the Lessepsian immigrants Alepes djedaba, Lagocephalus sceleratus and Fistularia commersonii in the waters surrounding the island of Zakynthos (SE Ionian Sea, Greece).
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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.
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    Coralligenous assemblages along their geographical distribution: Testing of concepts and implications for management
    Çinar, ME; Féral, JP; Arvanitidis, C; David, R; Taskin, E; Sini, M; Dailianis, T; Dogan, A; Gerovasileiou, V; Evcen, A; Chenuil, A; Dagli, E; Aysel, V; Issaris, Y; Bakir, K; Nalmpanti, M; Sartoretto, S; Salomidi, M; Sapouna, A; Açik, S; Dimitriadis, C; Koutsoubas, D; Katagan, T; Öztürk, B; Koçak, F; Erdogan-Dereli, D; Önen, S; Özgen, Ö; Türkçü, N; Kirkim, F; Önen, M
    The coralligenous habitat was studied at the large Mediterranean scale, by applying a standardized, non-destructive photo-sampling protocol, developed in the framework of the CIGESMED project. The results provided evidence to support the following statements: (a) the assemblage pattern is not homogeneously distributed across the four Mediterranean ecoregions studied (biotic gradients hypothesis); and (b) the assemblage pattern does not change significantly when the information is aggregated to higher taxonomic levels (taxonomic sufficiency hypothesis). Surrogate taxonomic categories higher than species, such as genus and family, can be used to reveal the multivariate pattern of the coralligenous assemblages. Although preliminary at the pan-Mediterranean scale, these outcomes set the scene for future comparisons as more data sets become available but also for comparisons between taxonomic and functional patterns. 1.2.3.4.
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    New records of rarely reported species in the Mediterranean Sea (March 2024)
    Digenis, M; Akyol, O; Çamlik, ÖY; Benoit, L; Biel-Cabanelas, M; Charalampous, K; Chatzispyrou, A; Crocetta, F; Deval, MC; di Capua, I; Domenichetti, F; Dordevic, N; Ferruzzi, S; Galiya, MY; Gammoudi, M; García-Charton, JA; Grech, D; Hoffman, R; Langeneck, J; Martinelli, M; Mastrototaro, F; Mavric, B; Navarro-Barranco, C; Okudan, ES; Orenes-Salazar, V; Orlando-Bonaca, M; Othman, RM; Petovic, S; Putignano, M; Renoult, JP; Ruíz, JM; Muriel, AS; Taskin, E; Tiralongo, F; Tosunoglu, Z; Tuney, I; Tursi, A; Vannini, J; Zacchetti, L; Zamuda, LL; Gerovasileiou, V
    This Collective Article presents information about 30 species with records in eight countries (Greece, Israel, Italy, Montenegro, Slovenia, Spain, Syria and Turkiye) and six ecoregions extending from the Alboran to the Levantine Seas. The recorded species belong to eight Phyla (4 Chlorophyta, 1 Rhodophyta, 1 Porifera, 3 Cnidaria, 2 Platyhelminthes, 2 Arthropoda, 2 Mollusca and 15 Chordata) as follows: Chlorophyta: Didymosporangium repens, Ochlochaete hystrix and Phaeophila hirsuta are reported for the first time from the Aegean coasts of Turkiye and Penicillus capitatus is firstly recorded in Slovenian coastal waters; Rhodophyta: Ptilophora dentata is recorded for the first time in Turkish coasts, from the entrance of a marine cave; Porifera: Tethya meloni is reported from Montenegrin waters; Cnidaria: Savalia savaglia and Dendrophyllia ramea are firstly observed north of the Almeria-Oran front in the southeastern Iberian Peninsula, while Spinimuricea cf. atlantica is firstly recorded in the Gulf of Lion constituting the easternmost record of the species in the Mediterranean Sea; Platyhelminthes: the polyclad flatworms Thysanozoon brocchii and Planocera graffi are reported for the first time from Greek waters, observed inside marine caves; Mollusca: Ascobulla fragilis is firstly reported from the Eastern Levantine Sea while the blanket octopus Tremoctopus violaceus is recorded in Izmir Bay constituting its fifth sighting in the Aegean Sea after a quarter of a century; Arthropoda: the copepod Ditrychocorycaeus africanus is firstly recorded in the Ionian Sea while the tufted ghost crab Ocypode cursor is detected further north in the Tyrrhenian Sea; Chordata: the bothid flounder Arnoglossus grohmanni is firstly reported in Spain while specimens of the rare bythitid Bellottia apoda are presented for the Adriatic Sea; the chondrichthyans Chimaera monstrosa, Dalatias licha, Heptranchias perlo, Leucoraja circularis, Mustelus mustelus, Oxynotus centrina, Squatina aculeata and Torpedo marmorata are presented as collected within 13 continuous years in the bathyal zone of the Antalya Bay; the speleophilic fish Grammonus ater is firstly recorded in the Alboran Sea, observed in a marine cave; the critically endangered sandy ray Leucoraja circularis is reported from the eastern Ionian Sea; the crested oarfish Lophotus lacepede is reported for the first time from Sardinia, based on evidence dating back 20 years; the white trevally Pseudocaranx dentex is firstly recorded in Tremiti Islands (Adriatic Sea, Italy) while the phaeton dragonet Synchiropus phaeton and the gobid Zebrus pallaoroi are firstly reported from Syrian and Italian waters, respectively.