The Occurrence of Amphiglena mediterranea (Leydig, 1851) (Annelida: Sabellidae) at the Romanian Coast of the Black Sea:
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he Occurrence of Amphiglena mediterranea (Leydig, 1851) (Annelida: Sabellidae) at the Romanian Coast of the Black Sea: A Case on an Unsuccessful Invasion? V. Surugiua, * and María Capab, ** aFaculty
of Biology, “Alexandru Ioan Cuza” University of Iași, Iași, 700507 Romania Departament of Biology, Universitat de les Illes Balears, Ctra. de Valldemossa, Palma, Balearic Islands, 07122 Spain *e-mail: [email protected] **e-mail: [email protected]
b
Received November 19, 2019; revised February 27, 2020; accepted June 1, 2020
Abstract—During a study of fauna associated with a shallow-water Zostera (Zosterella) noltei meadow from the southern part of the Romanian Black Sea coast, in August 2015, a sabellid polychaete identified as Amphiglena mediterranea was found. This represents a new record for the Romanian coast of the Black Sea. Three individuals were collected from muddy fine sand at 1.5 m depth at Mangalia, at salinity of 17.4 PSU and temperature of 23.2°C. Subsequent repeated sampling in the same area (in 2018 and 2019) did not revealed any additional individuals of this species. Therefore, the occurrence of A. mediterranea at the Romanian Black Sea coast might be regarded as an unsuccessful invasion. Keywords: Polychaetes, new record, faunistics, Romania, unsuccessful invasion, alien species DOI: 10.1134/S207511172003011X
INTRODUCTION Seven species in seven genera of Sabellidae have been reported in the Black Sea: Amphicorina armandi (Claparède, 1864) (Vinogradov, 1931, 1949; Dumitrescu, 1960), Amphiglena mediterranea (Leydig, 1851) (Makkaveeva, 1983; Kisseleva, 2004), Paradialychone filicaudata (Southern, 1914) (Sezgin et al., 2010; Kurt Șahin et al., 2017), Pseudopotamilla reniformis (Bruguière, 1789) (Boltachova and Lisitskaya, 2016), Jasmineira caudata Langerhans, 1880 (Marinov, 1959), Acromegalomma vesiculosum (Montagu, 1813) (Rullier, 1963), and Potamilla torelli (Malmgren, 1866) (Rullier, 1963), the last three in the Prebosphoric waters only. Of these species, only Amphicorina armandi is known from the Romanian Black Sea coast (Dumitrescu, 1957; Băcescu, 1963; Băcescu et al., 1965). Recently, another two species of sabellids—Aracia sp. and Laonome xeprovala Bick & Bastrop, in Bick et al., 2018 (as Laonome calida Capa, 2007)—were reported in the adjacent Sea of Azov by Syomin et al. (2015) and Boltachova et al. (2017), respectively. Thus, it is expected that those two species might occur as well in the Black Sea, especially given that Laonome xeprovala is considered as an introduced species in European waters (Capa et al., 2014; Bick et al., 2018). During a study that was carried out with the aim to reveal the fauna associated with a dwarf eelgrass (Zostera (Zosterella) noltei) canopy from the southern part
of the Romanian Black Sea coast in 2015, among the material collected, a previously unreported sabellid polychaete was observed. The aim of this paper is to report and to describe the sabellid species that is new for the Romanian coast of the Black Sea. MATERIAL AND METHODS Specimens identified as A. m
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