One Siganus or two? On the occurrence of Siganus luridus and Siganus rivulatus in the Maltese Islands

Schembri, Patrick J.; Deidun, Alan; Falzon, Mark Anthony

doi:10.1017/s175526721200053x

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…Asparagopsis armata does not occur in the Maltese Islands, the original record being actually of A. taxiformis (see Table 1, Note [4]). In the case of Siganus rivulatus, Schembri et al (2012) have reviewed all substantiated records of siganids and found that all refer to S. luridus, indicating that S. rivulatus actually does not occur in Maltese waters. A third species, Prionocidaris baculosa, was originally included on the basis of a single individual collected in 1976 from the ballast tank of a ship that had entered the Malta dockyards (Schembri, 1978), but no other specimens of this species have been recorded from Maltese waters (Tanti & Schembri, 2006).…”

Section: Part 2: Analysis Of Patternsmentioning

confidence: 99%

Updated review of marine alien species and other ‘newcomers’ recorded from the Maltese Islands (Central Mediterranean)

2015

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An updated review of marine alien species and other 'newcomers' recorded from the Maltese Islands is presented on account of new records and amendments to a previous review in 2007. Species were classified according to their establishment status ('Questionable', 'Casual', 'Established', 'Invasive') and origin ('Alien', 'Range expansion', 'Cryptogenic'). A total of 31 species were added to the inventory, while 6 species have been removed, bringing the total number of species to 73. Of these, 66 are considered to be aliens (or putative aliens but with uncertain origin) with the remaining 7 resulting from range expansion. Six records are considered to be questionable and hence unverified. For verified records, the dominant taxonomic groups are Mollusca (represented by 21 species) and Actinopterygii (15 species), followed by Crustacea (8 species) and Rhodophyta (7 species). Eight of these species (aliens: Caulerpa cylindracea, Lophocladia lallemandi, Womersleyella setacea, Brachidontes pharaonis, Percnon gibbesi, Fistularia commersonii, Siganus luridus; range extender: Sphoeroides pachygaster) are considered to be invasive. The introduction pathway for 30 species is unknown. Amongst the alien species, 'Shipping' is the most common introduction pathway, followed by 'Secondary dispersal' from elsewhere in the Mediterranean Sea. An increasing trend in the number of alien marine species reported from the Maltese Islands is evident, with a peak of 22 species recorded during the last decade (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010). A discussion on the rationale for including range-expanding species in national inventories of recent arrivals, and in the analysis of trends in records from the Maltese Islands, is included. In particular, the general warming trend of Mediterranean surface waters appears to be facilitating the westward spread of thermophilic alien species from the Eastern to the Central Mediterranean, and the eastward range expansion of tropical and subtropical Eastern Atlantic species.

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Section: Part 2: Analysis Of Patternsmentioning

confidence: 99%

Updated review of marine alien species and other ‘newcomers’ recorded from the Maltese Islands (Central Mediterranean)

2015

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“…Furthermore, other Siganid species (e.g. Siganus luridus ) have recently extended their distribution, colonizing the islands of the Sicilian Channel ( Schembri et al , 2012 ; Azzurro and Andaloro, 2014 ). Expected changes in the relative dominance of these two herbivorous species might have important ecological consequences in the near future, because Siganids have the potential to graze algal resources intensively and cause large-scale impact on natural habitats and local food chains ( Sala et al , 2011 ; Vergés et al , 2014a ).…”

Section: Introductionmentioning

confidence: 99%

Predicting future thermal habitat suitability of competing native and invasive fish species: from metabolic scope to oceanographic modelling

et al. 2015

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“…In 2004, it colonized the southern Adriatic (Dulčić & Pallaoro, 2004). This species has also been reported from Malta but, recently, Schembri et al (2012) suggested that "Siganus rivulatus has never been recorded from the Maltese Islands".…”

Section: G Insacco and B Zavamentioning

confidence: 96%

New Mediterranean Biodiversity Records (March 2016)

Karachle

Angelidis²,

Αποστολόπουλος³

et al. 2016

Medit. Mar. Sci.

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In this Collective Article on “New Mediterranean Biodiversity Records”, we present additional records of species found in the Mediterranean Sea. These records refer to eight different countries throughout the northern part of the basin, and include 28 species, belonging to five phyla. The findings per country include the following species: Spain: Callinectes sapidus and Chelidonura fulvipunctata; Monaco: Aplysia dactylomela; Italy: Charybdis (Charybdis) feriata, Carcharodon carcharias, Seriola fasciata, and Siganus rivulatus; Malta: Pomacanthus asfur; Croatia: Lagocephalus sceleratus and Pomadasys incisus; Montenegro: Lagocephalus sceleratus; Greece: Amathia (Zoobotryon) verticillata, Atys cf. macandrewii, Cerithium scabridum, Chama pacifica, Dendostrea cf. folium, Ergalatax junionae, Septifer cumingii, Syphonota geographica, Syrnola fasciata, Oxyurichthys petersi, Scarus ghobban, Scorpaena maderensis, Solea aegyptiaca and Upeneus pori; Turkey: Lobotes surinamensis, Ruvettus pretiosus and Ophiocten abyssicolum. In the current article, the presence of Taractes rubescens (Jordan & Evermann, 1887) is recorded for the first time in the Mediterranean from Italy. The great contribution of citizen scientists in monitoring biodiversity records is reflected herein, as 10% of the authors are citizen scientists, and contributed 37.5% of the new findings.

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One Siganus or two? On the occurrence of Siganus luridus and Siganus rivulatus in the Maltese Islands

Cited by 10 publications

References 15 publications

Updated review of marine alien species and other ‘newcomers’ recorded from the Maltese Islands (Central Mediterranean)

Updated review of marine alien species and other ‘newcomers’ recorded from the Maltese Islands (Central Mediterranean)

Predicting future thermal habitat suitability of competing native and invasive fish species: from metabolic scope to oceanographic modelling

New Mediterranean Biodiversity Records (March 2016)

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