scholarly journals Scientific collaboration for early detection of invaders results in a significant update on estimated range: lessons from Stenothoe georgiana Bynum & Fox 1977

2020 ◽  
Author(s):  
GEMMA MARTÍNEZ-LAIZ ◽  
MACARENA ROS ◽  
JOSÉ MANUEL GUERRA-GARCÍA ◽  
AGNESE MARCHINI ◽  
VICTORIA FERNÁNDEZ-GONZÁLEZ ◽  
...  
Keyword(s):  
Early Detection ◽  
First Record ◽  
Western Mediterranean ◽  
Mediterranean Coast ◽  
Amphipod Species ◽  
Indigenous Species ◽  
Scientific Cooperation ◽  
Vectors Of Introduction ◽  
Non Indigenous Species ◽  
Effective Spread

Detection of new non-indigenous species is often delayed when taxonomically challenging taxa are involved, such as small-sized marine organisms. The present study highlights the relevance of scientific cooperation in the early detection of the invader amphipod Stenothoe georgiana. Originally described from North Carolina (USA), the species was recently found in Chile and the Western Mediterranean. Here, we provide the first record of the species in Macaronesia, Atlantic coasts of continental Europe, North Africa and Australia, and extend its known distribution along the Mediterranean coast. Just like other small crustaceans, shipping (including recreational boating) and aquaculture are probably the main vectors of introduction and secondary spread for this amphipod species. This case of S. georgiana sheds light on the importance of promoting taxonomical knowledge, and building multidisciplinary expertise networks that ensure an effective spread of alien species information. We also encourage the implementation of standardized monitoring methodologies to facilitate early detection of small mobile invaders. 

scholarly journals First Record of the Alien Species Procambarus virginalis Lyko, 2017 in Fresh Waters of Sardinia and Insight into Its Genetic Variability

Life ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 606
Author(s):  
Daria Sanna ◽  
Ilenia Azzena ◽  
Fabio Scarpa ◽  
Piero Cossu ◽  
Angela Pira ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Alien Species ◽  
Procambarus Clarkii ◽  
Mitochondrial Gene ◽  
First Record ◽  
Indigenous Species ◽  
Fresh Waters ◽  
Mediterranean Island ◽  
Marbled Crayfish ◽  
Non Indigenous Species

In the fresh waters of Sardinia (Italy), the non-indigenous crayfish species Procambarus clarkii has been reported from 2005, but, starting from 2019, there have been several reports of a new non-indigenous crayfish in southern and central areas of this Mediterranean island, and its morphology suggests that this species may be the marbled crayfish Procambarus virginalis. Forty-seven individuals of this putative species were analyzed, using the mitochondrial gene Cytochrome c Oxidase subunit I as molecular marker to identify this crayfish and investigate the level of genetic variability within the recently established population. Phylogenetic and phylogeographic analyses were carried out on a dataset including sequences from the Sardinian individuals and from all congenerics available in GenBank. Results showed that the new Sardinian crayfish belong to the species P. virginalis. All the sequences belonging to P. virginalis from European countries are identical, with only few exceptions found among Sardinian individuals. In conclusion, this paper highlights the occurrence of a new further alien species in the Sardinian fresh waters, which are already characterized by the high presence of non-indigenous species.

First record of the Levantine species Scoloplos haasi (Orbiniidae: Scolecida: Annelida) from the Mediterranean coast of Spain

2009 ◽  
Vol 90 (5) ◽  
pp. 1051-1054 ◽  
Author(s):  
Eduardo López
Keyword(s):  
Natural History ◽  
Iberian Peninsula ◽  
British Museum ◽  
First Record ◽  
Western Mediterranean ◽  
Mediterranean Coast ◽  
Geographical Range ◽  
Polychaete Species ◽  
The Mediterranean

During an investigation devoted to characterize all the Orbiniidae polychaete species present in the Iberian Peninsula, several individuals previously identified as Scoloplos armiger showed to actually belong to Scoloplos haasi, a species to date considered endemic from Israel. The comparison with the holotype deposited in the British Museum of Natural History confirmed the identification. This record of S. haasi is not only a new one for the western Mediterranean but also the first one out of its original locality, extending largely westwards the geographical range of the species.

Non-indigenous species along the Israeli Mediterranean coast: tally, policy, outlook

Hydrobiologia ◽  
2020 ◽  
Author(s):  
Bella S. Galil ◽  
Henk K. Mienis ◽  
Razy Hoffman ◽  
Menachem Goren
Keyword(s):  
Mediterranean Coast ◽  
Indigenous Species ◽  
Non Indigenous Species

scholarly journals First Record of Colonial Ascidian, Botrylloides diegensis Ritter and Forsyth, 1917 (Ascidiacea, Stolidobranchia, Styelidae), in South Korea

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2164
Author(s):  
Taekjun Lee ◽  
Sook Shin
Keyword(s):  
South Korea ◽  
First Record ◽  
Artificial Substrates ◽  
Indigenous Species ◽  
Colonial Ascidian ◽  
Mitochondrial Coi ◽  
Intraspecific Variations ◽  
Single Clade ◽  
Non Indigenous Species ◽  
Botrylloides Diegensis

Botrylloides species are important members of the fouling community colonizing artificial substrates in harbors and marinas. During monitoring in 2017–2020 of non-indigenous species in Korea, one colonial ascidian species was distinctly different from other native colonial ascidians, such as B. violaceus and Botryllus schlosseri, in South Korea. This species was identified as B. diegensis. DNA barcodes with mitochondrial COI were used to identify one-toned and two-toned colonies of B. diegensis. Intraspecific variations between Korean and other regions of B. diegensis from the NCBI ranged from 0.0% to 1.3%. The Korean B. diegensis was clearly distinct from other species of Botrylloides at 15.8–24.2%. In phylogenetic analysis results, Korean B. diegensis was established as a single clade with other regions of B. diegensis and was clearly distinct from Korean B. violaceus. After reviewing previous monitoring data, it was found that two-toned B. diegensis was already found in six harbors by July 2017. It has now spread into 14 harbors along the coastal line of South Korea. This means that B. diegensis might have been introduced to South Korea between 1999 and 2016.

scholarly journals State of the Art of the Marine Non-Indigenous Flora and Fauna in Slovenia

2012 ◽  
Vol 13 (2) ◽  
pp. 243 ◽  
Author(s):  
L. LIPEJ ◽  
B. MAVRIC ◽  
M. ORLANDO-BONACA ◽  
A. MALEJ
Keyword(s):  
Adriatic Sea ◽  
State Of The Art ◽  
Coastal Lagoons ◽  
Indigenous Species ◽  
Vectors Of Introduction ◽  
Winter Temperatures ◽  
Lessepsian Migration ◽  
Scientific Attention ◽  
Non Indigenous Species ◽  
Eleven Species

Authors provide the state of knowledge on marine non-indigenous species in waters off Slovenia. According to published records and authors unpublished data at least 15 non-indigenous species were up to date recorded in the Slovenian part of the Adriatic sea. Eleven species were considered as established and four species as casual. The vectors of introduction are various, comprising Lessepsian migration, mariculture and shipping. The majority of non-indigenous taxa were recorded in the mediolittoral belt and coastal lagoons. The low number of non-indigenous species so far recorded in the Slovenian part of the Adriatic sea could be explained by various factors. Among them, the most reasonable are the lack of scientific attention, the small proportion of Slovenian Sea and low winter temperatures, which represents a physiological barrier for the survival of newcomers. The number of recorded species is far from being satisfactory. Therefore, we expect that the list of non-indigenous species will be enlarged in the nearby future.

First record of the non-indigenous isopods Paracerceis sculpta (Holmes, 1904) and Sphaeroma walkeri Stebbing, 1905 (Isopoda, Sphaeromatidae) for Madeira Island

Crustaceana ◽  
2017 ◽  
Vol 90 (14) ◽  
pp. 1747-1764 ◽  
Author(s):  
Patrício Ramalhosa ◽  
Alfonso Nebra ◽  
Ignacio Gestoso ◽  
João Canning-Clode
Keyword(s):  
Marine Invertebrates ◽  
First Record ◽  
Indigenous Species ◽  
Northern Indian Ocean ◽  
Madeira Island ◽  
Eastern Atlantic Ocean ◽  
The Pacific ◽  
North Eastern ◽  
Island System ◽  
Non Indigenous Species

While exploring the presence of non-indigenous fouling species colonizing settlement plates deployed in local marinas in Madeira Island (north-eastern Atlantic Ocean), two non-indigenous species (NIS) of free-swimming crustaceans,Paracerceis sculpta(Holmes, 1904) andSphaeroma walkeriStebbing, 1905 (Isopoda: Sphaeromatidae), were detected.Paracerceis sculptais native to the Pacific Coast of North and Central America and has been introduced into many other regions worldwide.Sphaeroma walkeriis native to the northern Indian Ocean and nowadays is considered one of the most widely ship-transported species globally. Both species were collected in the marina of Funchal, Madeira Island, Portugal, during monitoring surveys in 2015. Moreover, several specimens ofS. walkeriwere also found in a foreign recreational yacht hull, during a dry dock inspection. These findings suggest that hull fouling is a significant vector for the introductions of marine invertebrates into the Madeira island system.

scholarly journals Record of the non-indigenous species Sternaspis aff. nana Zhadan, Tzetlin & Salazar-Vallejo, 2017 (Annelida: Sternaspidae) in the Southwest Atlantic Ocean

2021 ◽  
Vol 61 ◽  
pp. e20216111
Author(s):  
Nykon Craveiro ◽  
José Souto Rosa Filho
Keyword(s):  
Atlantic Ocean ◽  
Conservation Status ◽  
Marine Species ◽  
First Record ◽  
Indigenous Species ◽  
Asian Countries ◽  
Southwest Atlantic ◽  
Ship Hulls ◽  
Non Indigenous Species ◽  
New Habitats

The introduction of non-indigenous marine species in new habitats is generally associated with ships arriving at ports, driven by species transported in ballast water and sediment and biofouling communities on ship hulls, drifting object and underwater surfaces in dock areas. The present paper reports the record of the specie Sternaspis aff. nana in the Atlantic Ocean, discussing its possible conservation status and method of arrival to Brazil. Sediments samples were collected in the external area (11 m depth) of the Suape Harbor (Brazil) in February 2018. Two individuals of Sternaspis aff. nana were recorded, representing the first record of this species in the Southwest Atlantic Ocean. The way S. aff. nana arrived in Brazilian waters cannot be easily determined, the short-lived lecithotrophic larvae of sternaspids suggest that the specimens found in Suape have arrived in ballast sediment. An increase in trade between Brazil and Asian countries since the 2000s has led to that more ships coming from China having arrived in Brazilian harbors. The arrival of S. aff. nana, originally described in the South China Sea, in the Suape harbor area may have resulted from this intense movement of ships between China and Brazil.

scholarly journals Spread of the non-indigenous ascidian Aplidium accarense (Millar, 1953) in the Eastern Mediterranean Sea: morphological and molecular tools for an accurate identification

2021 ◽  
Author(s):  
FEDERICA MONTESANTO ◽  
GIOVANNI CHIMIENTI ◽  
CARMELA GISSI ◽  
FRANCESCO MASTROTOTARO
Keyword(s):  
Eastern Mediterranean ◽  
Management Strategies ◽  
Western Mediterranean ◽  
Correct Identification ◽  
Western Coast ◽  
Indigenous Species ◽  
Natural Ecosystems ◽  
Accurate Identification ◽  
Artificial Substrata ◽  
Non Indigenous Species

The aplousobranch ascidian Aplidium accarense (Millar, 1953) was first described on the western coast of Africa, where it is considered native. Afterwards, this species was introduced along south-American Atlantic coasts, where it affected local shellfish farms through a massive colonization of both natural and artificial substrata. Aplidium accarense has been recently reported along Catalan coasts and in the Tyrrhenian Seas (Western Mediterranean) where it represents a non-indigenous species, only recorded in harbours and aquaculture farms thus far. These Mediterranean records support the hypothesis that A. accarense is currently expanding within the basin, representing a potential invasive species. In this study, several colonies of A. accarense were found for the first time on artificial substrata within the semi-enclosed basin of the Mar Piccolo of Taranto (Italy, Ionian Sea), in the Eastern Mediterranean. Here we provide an updated description of A. accarense combining both morphological and molecular approaches, in order to allow an accurate and reliable identification of this expanding species. Comparing the morphology of the specimens collected from Taranto with the previous descriptions, a slight intra-specific variability has been noticed. Therefore, we provide detailed comparisons of the specimens found in Taranto with all the other A. accarense sampled in other areas of the world, in order to highlight the intra-species variability. The correct identification of a potentially-dangerous species such as A. accarense, represents a needed step for environmental monitoring purposes and for implementing management strategies to mitigate the effects of non-indigenous species on natural ecosystems and human activities.

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