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.

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 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.

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.

A 20-year update on the state of seaweed resources in Italy

2019 ◽  
Vol 62 (3) ◽  
pp. 249-264 ◽  
Author(s):  
Antonella Petrocelli ◽  
Ester Cecere
Keyword(s):  
Alien Species ◽  
The State ◽  
Indigenous Species ◽  
Seaweed Species ◽  
Industrial Processing ◽  
Know How ◽  
Potential Applications ◽  
Non Indigenous Species ◽  
Floristic Studies

Abstract This article presents an update of the situation regarding the seaweed resources of Italy 20 years after the first assessment. A search for companies working with seaweed in Italy was conducted. In addition, the literature published over the last 20 years on seaweed biodiversity, alien species, harvests, industrial processing and biomass use was carefully examined and the results are discussed. There are a great many floristic studies, tackling both indigenous and non-indigenous species, although some geographical areas are less studied than others. The number of studies of the use of biomass has increased in the last decade. However, it is apparent that despite the considerable know-how concerning seaweed species, their properties and potential applications, Italy is still behind in seaweed exploitation compared to other countries.

scholarly journals Biopollution by Invasive Marine Non-Indigenous Species: A Review of Potential Adverse Ecological Effects in a Changing Climate

2021 ◽  
Vol 18 (8) ◽  
pp. 4268
Author(s):  
Anna Occhipinti-Ambrogi
Keyword(s):  
Alien Species ◽  
Scientific Evidence ◽  
Mitigation Measures ◽  
Chemical Pollution ◽  
Water Quality Criteria ◽  
Indigenous Species ◽  
Management Actions ◽  
Species Invasions ◽  
The Mediterranean ◽  
Non Indigenous Species

Biopollution by alien species is considered one of the main threats to environmental health. The marine environment, traditionally less studied than inland domains, has been the object of recent work that is reviewed here. Increasing scientific evidence has been accumulated worldwide on ecosystem deterioration induced by the development of massive non-indigenous population outbreaks in many coastal sites. Biopollution assessment procedures have been proposed, adopting criteria already used for xenochemical compounds, adjusting them to deal with alien species invasions. On the other hand, prevention and mitigation measures to reduce biopollution impact cannot always mimic the emission countermeasures that have been successfully applied for chemical pollutants. Nevertheless, in order to design comprehensive water-quality criteria, risk assessment and management strategies, based on scientific knowledge, have been developed in a similar way as for chemical pollution. The Mediterranean Sea is a well-known case of alien species invasion, mainly linked to the opening of the Suez Canal. Non-indigenous species have caused well-documented changes in many coastal ecosystems, favoured by concomitant changes induced by global warming and by the heavy load of nutrients and pollutants by various anthropogenic activities. Naval commercial traffic and leisure boats are among the most active vectors of spread for alien species inside the Mediterranean, and also towards other ocean regions. The scientific evidence gathered and summarized in this review suggests that effective management actions, under a precautionary approach, should be put in place in order to control introductions of species in new areas. These management measures are already established in international treaties and national legislations, but should be enforced to prevent the disruption of the dynamic ecological equilibria in the receiving environment and to control the direct adverse effects of alien species.

scholarly journals Further dispersion of the invasive alien species Corbicula fluminea (O. F. Müller, 1774) in the Oder River

2019 ◽  
pp. 14 ◽  
Author(s):  
Klaudia D. Cebulska ◽  
Mariola Krodkiewska
Keyword(s):  
Alien Species ◽  
Water Channel ◽  
Corbicula Fluminea ◽  
Freshwater Ecosystems ◽  
Indigenous Species ◽  
Vistula River ◽  
New Findings ◽  
Oder River ◽  
Non Indigenous Species ◽  
First Time

Corbicula fluminea is recognised as being one of the worst alien species in Europe and one of the world's most widespread non-indigenous species in freshwater ecosystems. In Poland, it was detected in a heated water channel of the Lower Oder Power Station near Szczecin for the first time in 2003. In the following years, it continued its spread in the Oder River and the Vistula River. Our study uncovered new findings of C. fluminea in the Upper Oder River, which are its southernmost localities in the Oder River. Its record in the Gliwice Canal indicates that this may be a new dispersion route to the east for this species.

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