Research articles
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María Capa, Godfried van Moorsel and David Tempelman
The Australian feather-duster worm Laonome calida Capa, 2007 (Annelida: Sabellidae) introduced into European inland waters? (pp 1-11) |
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Laonome calida Capa, 2007, a feather-duster worm discovered in 2007 in estuaries and open water of tropical and subtropical Australia,
was recently found at many locations in fresh and brackish waters of the delta region of the rivers Rhine, Meuse, and Scheldt in the Netherlands.
Morphological differences between specimens from Australia and the Netherlands are insufficient to warrant specific distinction. A recent translocation
from Australia to Europe, or from a third country to both, may explain the disjunct distribution of this species. A table with translocated and cryptogenic
sabellids reported to date is provided.
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Nicholas Brunetti and Carmela Cuomo
Distribution of the invasive tunicate Styela clava in Long Island Sound, New England, USA (pp 13-19) |
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The clubbed tunicate Styela clava (Herdman, 1881) is an invasive, solitary, club-shaped organism native to the western Pacific.
S. clava has spread far beyond its native range into temperate waters worldwide, including those of Long Island Sound (LIS) on the northeastern
coast of the United States. A visual inspection of public and private commercial and recreational marinas and docks located along the shores of LIS was
conducted between June 2011 and September 2013. The wrack lines of public beaches and other public coastal areas were also surveyed. S. clava was
found at 77.8 % of the sites surveyed indicating it has now fully colonized the Sound. It is strongly suggested that managers of neighboring waters be vigilante,
and be prepared to take steps to mitigate negative impacts, should the species spread further south along the Atlantic Coast of the United States.
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Kate James, Irene Middleton, Crispin Middleton and Nick T. Shears
Discovery of Undaria pinnatifida (Harvey) Suringar, 1873 in northern New Zealand indicates increased invasion threat in subtropical regions (pp 21-24) |
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In March 2013 the Asian kelp Undaria pinnatifida (Harvey) Suringar, 1873 was discovered in Rangaunu Harbour, northern New Zealand (34°89′05″S, 173°29′54″E),
a site where water temperatures typically range between 14 and at least 24C. This is the first report of Undaria in subtropical parts of New Zealand and
demonstrates that Undaria is capable of invading marine environments throughout the country. The presence of healthy juvenile and reproductive sporophytes
during late summer (SST >21C) is of particular concern as juvenile Undaria sporophytes have previously only been recorded during summer in cooler water regions.
This discovery indicates a previously unreported deviation from a winter annual lifecycle at subtropical temperatures and an increased risk of invasion impacts
for subtropical sites worldwide.
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Luísa M. S. Borges, Huseyin Sivrikaya and Simon M. Cragg
First records of the warm water shipworm Teredo bartschi Clapp, 1923 (Bivalvia, Teredinidae) in Mersin, southern Turkey and in Olhão, Portugal (pp 25-28) |
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Bivalves of the family Teredinidae are among the most destructive wood-boring species in the sea. We report the first occurrences of the warm-water
shipworm Teredo bartschi in Mersin, Turkey, and Olhão, Portugal. The colonisation of the site in Mersin is likely to have occurred by rafting
adults originating from the Red Sea, which passed through the Suez Canal (lessepsian migrants). T. bartschi might have been introduced in Olhão
Harbour, Portugal, either by rafting adults with larvae transported by currents or by larvae transported by ships in ballast water. These seem to be
the first published records of established T. bartschi populations in the Mediterranean and in northeast Atlantic.
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Marco Faasse
The Pacific amphipod Monocorophium uenoi (Stephensen, 1932) introduced to The Netherlands (NE Atlantic) (pp 29-33) |
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Examination of mud from crevices beneath Pacific oysters Crassostrea gigas (Thunberg, 1793) in The Netherlands revealed the presence
of the Pacific amphipod Monocorophium uenoi (Stephensen, 1932), which was not recorded previously from the Atlantic. The most likely
introduction vector to The Netherlands was import of shellfish. The only location where the amphipod was found was the center of shellfish trade, Yerseke.
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Árpád Ferincz, Nora Kováts, Árpád Benkő-Kiss and Gábor Paulovits
New record of the spiny-cheek crayfish, Orconectes limosus (Rafinesque, 1817) in the catchment of Lake Balaton (Hungary) (pp 35-38) |
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Lake Balaton in Hungary is the biggest shallow lake in Europe and has two main invasion pathways: a canal (Sió Canal), which connects
the lake to the watershed of the River Danube and fishponds on the south of the lake. The spiny-cheek crayfish was intentionally introduced
to Hungary in the 1950s for farming, and was first detected in the wild in the Újpest-branch of the River Danube in 1985. Its occurrence
in the Sió Canal was first reported in 2004, and a dead specimen was found in Lake Balaton. In our study the species is described from
a fish pond with a possible connection to the lake.
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Gianluca Stasolla and Gianna Innocenti
New records of the invasive crabs Callinectes sapidus Rathbun, 1896 and Percnon gibbesi (H. Milne Edwards, 1853) along the Italian coasts (pp 39-43) |
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Callinectes sapidus (Crustacea, Decapoda, Portunidae) and Percnon gibbesi (Crustacea, Decapoda, Percnidae) are respectively reported
from two Italian localities: Basento river (Basilicata, Ionian Sea) and Montecristo Island, Tuscan Archipelago (Northern Tyrrhenian Sea).
Data on collection sites and discussion regarding their present distribution are provided.
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Yuliya Kutsokon, Anton Tsyba and Yuriy Kvach
The occurrence of the Chinese sleeper Perccottus glenii Dybowski, 1877 in the Southern Bug River Basin, Ukraine (pp 45-48) |
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In 2013, 71 specimens of Perccottus glenii Dybowski, 1877 were caught in Ukraine in a tributary of the Southern Bug River, known as the Hirskyi Tikych.
Present study confirms the expansion of this invasive species in Ukraine and also in Europe.
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Carlos González-Gándara and Vicencio de la Cruz-Francisco
Unusual record of the Indo-Pacific pomacentrid Neopomacentrus cyanomos (Bleeker, 1856) on coral reefs of the Gulf of Mexico (pp 49-52) |
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Neopomacentrus cyanomos (Bleeker, 1856), a common damselfish from the Indo-west Pacific, is reported from the southern Gulf of Mexico
based on 134 visual observations and the collection of 15 specimens from coral south of Veracruz, Mexico. It was sighted in schools containing
5 to 30 individuals at depths of 2 to 21 m. The introduction and subsequent colonization of this alien species is probably the result of transport
in the ballast water of international ships.
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Alan Deidun and Luca Castriota
First record of Abudefduf cfr saxatilis Linnaeus, 1758 (Perciformes: Pomacentridae) from the Maltese Islands (Central Mediterranean) (pp 53-56) |
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The first sighting of Abudefduf individuals from Maltese (Central Mediterranean) coastal waters is reported. The individuals (6-7) were photographed
in the field but were not collected. The pattern of body colouration of these individuals is consistent with that reported by most previous authors for
A. saxatilis, marking the first record of this Atlantic species from Maltese waters.
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