Records of alien marine species of Indo-Pacific origin at Sigri Bay (Lesvos Island, north-eastern Aegean Sea)

Evagelopoulos, Athanasios; Poursanidis, Dimitris; Papazisi, E.; Gerovasileiou, Vasilis; Katsiaras, Nikolaos; Koutsoubas, Drosos

doi:10.1017/s1755267215000123

Cited by 9 publications

(9 citation statements)

References 41 publications

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“…Its first Mediterranean record is from Yumurtalik, Turkey in 1999 ( Albayrak & Çeviker, 2001 ), then from Kuşadesi, Turkey (Aegean Sea) in 2000. Then a decade later, it was reported from Cyprus and the Greek Dodecanese island of Astypalaia ( Zenetos, Konstantinou & Konstantinou, 2009 ; Zenetos et al, 2011 ), the Levantine coast of Turkey ( Bakir et al, 2012 ), Saronikos Bay, Western Aegean ( Zenetos et al, 2013 ), the Gulf of Thermaikos ( Manousis & Galinou-Mitsoudi, 2014 ), and Lesbos Island, mid-Aegean Sea ( Evagelopoulos et al, 2015 ). It was just reported from Paleokastritsa, Corfu ( Romani et al, 2017 ), but only from empty shells, therefore this locality awaits verification from live specimens.…”

Section: New Nis Records: Notes On Individual Speciesmentioning

confidence: 99%

A massive update of non-indigenous species records in Mediterranean marinas

Ulman

Ferrario

Occhpinti-Ambrogi

et al. 2017

PeerJ

124

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The Mediterranean Sea is home to over 2/3 of the world’s charter boat traffic and hosts an estimated 1.5 million recreational boats. Studies elsewhere have demonstrated marinas as important hubs for the stepping-stone transfer of non-indigenous species (NIS), but these unique anthropogenic, and typically artificial habitats have largely gone overlooked in the Mediterranean as sources of NIS hot-spots. From April 2015 to November 2016, 34 marinas were sampled across the following Mediterranean countries: Spain, France, Italy, Malta, Greece, Turkey and Cyprus to investigate the NIS presence and richness in the specialized hard substrate material of these marina habitats. All macroinvertebrate taxa were collected and identified. Additionally, fouling samples were collected from approximately 600 boat-hulls from 25 of these marinas to determine if boats host diverse NIS not present in the marina. Here, we present data revealing that Mediterranean marinas indeed act as major hubs for the transfer of marine NIS, and we also provide evidence that recreational boats act as effective vectors of spread. From this wide-ranging geographical study, we report here numerous new NIS records at the basin, subregional, country and locality level. At the basin level, we report three NIS new to the Mediterranean Sea (Achelia sawayai sensu lato, Aorides longimerus, Cymodoce aff. fuscina), and the re-appearance of two NIS previously known but currently considered extinct in the Mediterranean (Bemlos leptocheirus, Saccostrea glomerata). We also compellingly update the distributions of many NIS in the Mediterranean Sea showing some recent spreading; we provide details for 11 new subregional records for NIS (Watersipora arcuata, Hydroides brachyacantha sensu lato and Saccostrea glomerata now present in the Western Mediterranean; Symplegma brakenhielmi, Stenothoe georgiana, Spirobranchus tertaceros sensu lato, Dendostrea folium sensu lato and Parasmittina egyptiaca now present in the Central Mediterranean, and W. arcuata, Bemlos leptocheirus and Dyspanopeus sayi in the Eastern Mediterranean). We also report 51 new NIS country records from recreational marinas: 12 for Malta, 10 for Cyprus, nine for Greece, six for Spain and France, five for Turkey and three for Italy, representing 32 species. Finally, we report 20 new NIS records (representing 17 species) found on recreational boat-hulls (mobile habitats), not yet found in the same marina, or in most cases, even the country. For each new NIS record, their native origin and global and Mediterranean distributions are provided, along with details of the new record. Additionally, taxonomic characters used for identification and photos of the specimens are also provided. These new NIS records should now be added to the relevant NIS databases compiled by several entities. Records of uncertain identity are also discussed, to assess the probability of valid non-indigenous status.

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Section: New Nis Records: Notes On Individual Speciesmentioning

confidence: 99%

A massive update of non-indigenous species records in Mediterranean marinas

Ulman

Ferrario

Occhpinti-Ambrogi

et al. 2017

PeerJ

124

View full text Add to dashboard Cite

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“…folium (Linnaeus, 1758), Septifer cumingii (Dunker, 1855), Syrnola fasciata Jickeli, 1882, Smaragdia souverbiana (Montrouzier, 1863), Ergalatax junionae Houart, 2008, the echinoderm Diadema setosum (Leske, 1778) and the foraminiferan Triloculina cf. fichteliana d'Orbigny, 1839, which reached the North Aegean in the period 2012-2017 (Evagelopoulos et al, 2015;Delliou et al, 2015;Giovos et al, 2019). Similarly, yet at a slower pace, Lessepsian NIS advance towards the Ionian Sea.…”

Section: Discussionmentioning

confidence: 98%

Is the trend in new introductions of marine non-indigenous species a reliable criterion for assessing good environmental status? Τhe case study of Greece

et al. 2020

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This study presents the updated status of marine non-indigenous species (NIS) distribution in Greece and investigates trends in new NIS introductions, at both national and subnational level, during 1970-2017. The overall picture shows an increase in new introductions from the 1970s to 2017. The number of unaided introduced species (mainly Lessepsian immigrants) followed an upward trend in the South Aegean Sea until 2017. Similarly, the number of NIS associated with transport-stowaway (NIS introduced mainly via ballast and boat hulls) followed an upward until 2017 in the South Aegean Sea, but also in the Hellenic Levantine coasts. However, these results are greatly affected by a monitoring bias, which appears to be the main factor influencing the number of new NIS introductions reported from Greece and its subnational areas. This monitoring bias, as well as the continuous influx of Lessepsian NIS into the Aegean Sea, constitutes a challenge for Greece as regards setting exact boundaries for areas with or without Good Environmental Status (GES), based on Descriptor 2, primary criterion C1 (D2C1), of the Marine Strategy Framework Directive (MSFD). Dedicated monitoring of marine NIS should be established and be constant in space, time and across taxonomic groups. Prioritization should be given to hot-spot areas of new NIS introductions, such as ports, aquaculture units and marine protected areas. This should be a prerequisite for applying the primary criterion D2C1 of the MSFD properly, at both national and subnational level. Finally, as regards the implementation of D2C1 of the MSDF and setting exact threshold values, we highlight the need for subregional and regional coordination in the Mediterranean.

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“…The species was recorded in all S Aegean sites, where it presented particularly high values compared to other common native species, whereas in the N Aegean it was only observed at the southern coasts of Chios Island (sites 3-L, 4-L, 4-H in the NE Aegean). Although occasional records of few S. luridus individuals have been reported from several sites of the NE Aegean since 2013 (Evagelopoulos et al, 2015;Ismen et al, 2015;Tsirintanis and Katsanevakis, 2017), the large numbers recorded in Chios Island may be a forerunner of the further expansion and successful establishment of the species in the N Aegean Sea. It is also worth mentioning that, of the four grazing fish species existing in the Aegean rocky reefs, the biomass of the native S. sarpa in the S Aegean sites was considerably lower than that of S. luridus and S. cretense, while it had the highest biomass in the N Aegean sites.…”

Section: Discussionmentioning

confidence: 99%

Small-Scale Coastal Fishing Shapes the Structure of Shallow Rocky Reef Fish in the Aegean Sea

et al. 2019

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Shallow rocky reef fish assemblages were studied in sites of low versus high fishing pressure (FP) across the Aegean Sea, in order to assess community structure at a large scale and investigate spatial variability in relation to FP, depth, and geographic location. A total of 15 pairs of high and low FP sites were selected (18 sites in North Aegean, 12 in South Aegean). The level of FP was defined based on a fishing pressure index specifically developed for coastal small-scale fisheries in the region. In each site, fish communities were investigated at two depth zones (5 and 15 m). Number of species, fish size (Total Length; TL) and abundance were recorded along strip transects through underwater visual surveys. Abundance and TL were used to estimate biomass, and fish species were assigned to distinct trophic and commercial status groups. An 8fold range in fish density and a 14-fold range in fish biomass were detected, while community structure was affected by all variables considered (FP, depth, geographic location). The N Aegean sites scored higher in number of species and biomass of carnivorous fish, whereas the S Aegean had a higher biomass of several allochthonous and thermophilous species. Abundance and biomass estimates were higher in low FP sites, and primarily at the 15 m depth zone, where low FP sites had the double abundance and 2.8 times higher biomass. Biomass of carnivores was generally very low, except at deep sites of low FP. Given that sites of lower FP represent areas of lower conflicting interests for fisheries whilst providing enhanced biomass levels, they should be included in future marine conservation planning schemes, as they could contribute to the replenishment of fisheries and the boosting of conservation benefits provided by MPAs, once properly managed.

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Records of alien marine species of Indo-Pacific origin at Sigri Bay (Lesvos Island, north-eastern Aegean Sea)

Cited by 9 publications

References 41 publications

A massive update of non-indigenous species records in Mediterranean marinas

A massive update of non-indigenous species records in Mediterranean marinas

Is the trend in new introductions of marine non-indigenous species a reliable criterion for assessing good environmental status? Τhe case study of Greece

Small-Scale Coastal Fishing Shapes the Structure of Shallow Rocky Reef Fish in the Aegean Sea

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