First record of the Ascidiacea Rhodosoma turcicum in the south-west Atlantic Ocean

Skinner, Luís Felipe; Oliveira, Géssica Cristine Maia; Barboza, Danielle Fernandes; Tenório, A. A.; Soares, Débora

doi:10.1017/s1755267213000092

Cited by 3 publications

(6 citation statements)

References 44 publications

(34 reference statements)

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“…In the present paper, two specimens (around 5 cm high) of the ascidian Rhodosoma turcicum are being reported for the first time from the coasts of Turkey (Levantine Sea), in Fethiye Bay (36°42’46.02’’N-28°54’29.91’’E) at 6 m depth on a dead shell of Pinna nobilis in 2008 ( Fig 1 ). This species was originally described from the Red Sea on a madreporarian coral [ 28 ] and is widely distributed in tropical and some temperate areas (for the distribution, see [ 29 ]). This species was firstly reported from the Mediterranean in Lebanon in 1999 [ 30 ], and subsequently in Israel in 2004 [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

Current status (as of end of 2020) of marine alien species in Turkey

Çınar

Bilecenoğlu

Yokeş³

et al. 2021

PLoS ONE

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The 2020’s update of marine alien species list from Turkey yielded a total of 539 species belonging to 18 taxonomic groups, 404 of which have become established in the region and 135 species are casual. A total of 185 new alien species have been added to the list since the previous update of 2011. The present compilation includes reports of an ascidian species (Rhodosoma turcicum) new to the marine fauna of Turkey and range extensions of six species. Among the established species, 105 species have invasive characters at least in one zoogeographic region, comprising 19% of all alien species. Mollusca ranked first in terms of the number of species (123 species), followed by Foraminifera (91 species), Pisces (80 species) and Arthropoda (79 species). The number of alien species found in seas surrounding Turkey ranged from 28 (Black Sea) to 413 (Levantine Sea). The vectoral importance of the Suez Canal diminishes when moving from south to north, accounting for 72% of species introductions in the Levantine Sea vs. only 11% of species introductions in the Black Sea. Most alien species on the coasts of Turkey were originated from the Red Sea (58%), due to the proximity of the country to the Suez Canal. Shipping activities transported 39% of alien species, mainly from the Indo-Pacific area (20%) and the Atlantic Ocean (10%). Misidentified species (such as Pterois volitans, Trachurus declivis, etc.) and species those classified as questionable or cryptogenic were omitted from the list based on new data gathered in the last decade and expert judgements. The documented impacts of invasive species on socio-economy, biodiversity and human health in the last decade as well as the legislation and management backgrounds against alien species in Turkey are presented.

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Section: Resultsmentioning

confidence: 99%

Current status (as of end of 2020) of marine alien species in Turkey

Çınar

Bilecenoğlu

Yokeş³

et al. 2021

PLoS ONE

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“…We employed two sampling strategies: on artificial experimental structures (Marins et al, 2009;Kremer and Rocha, 2011;Skinner et al, 2013) and by active SCUBA or free diving searches. Our approach was similar to Kakkonen et al (2019), which emphasize habitats favoring ascidian recruitment.…”

Section: Samplingmentioning

confidence: 99%

“…Granite plates (21 x 12cm) and sandwich black polyethylene plates (15×15cm), sensu Kremer and Rocha (2011) were used to collect ascidians within protected cages, needed to prevent fish predation on ascidian recruits (Marins et al, 2009;Skinner et al, 2013). The experimental units were immersed 1 m below the surface at 11 sites positioned in the study areas : Cabo Frio (at Itajuru Inlet, Forno Harbor, and Cabo Frio Island); Guanabara Bay (Urca and Praia Vermelha); Sepetiba Bay (Junqueira and Guaíba Island); and Ilha Grande Bay (Piraquara de Fora, Praia do Anil, Ponta Leste, Abraão, and Dois Rios).…”

Section: Artificial Structuresmentioning

confidence: 99%

“…The species Ciona robusta Hoshino & Tokioka, 1967 and Rhodosoma turcicum (Savigny, 1816) are considered invasive in many parts of the world. Both species have been recorded in Brazil but studies indicated that they are susceptible to native predators (Marins et al, 2009;Skinner et al, 2013). At least 14 other non-indigenous ascidian species have likewise been recorded in Rio de Janeiro State (Rocha and Costa, 2005;Marins et al, 2010;Granthom-Costa et al, 2016;Skinner et al, 2016, Oricchio et al, 2019.…”

Section: Introductionmentioning

confidence: 99%

“…Ciona robusta (formely identified on Brazil as C. intestinalis) was reported by Millar (1958) in São Sebastião (São Paulo state), and later in Guanabara Bay (Rio de Janeiro state), by Costa (1969Costa ( ) in 1958Costa ( and 1961, and elsewhere in Rio de Janeiro (Marins et al, 2009) and São Paulo (Rocha, 1995;Rocha and Bonnet, 2009;Dias et al, 2013;Vieira et al, 2012) coasts in the following decades. Rhodosoma turcicum has been recorded from the states of Bahia (Rocha et al, 2012a) and Rio de Janeiro (Skinner et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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The spread of the introduced ascidians Ciona robusta Hoshino & Tokioka, 1967 and Rhodosoma turcicum (Savigny, 1816) in the southwestern Atlantic

Barboza

Skinner

2021

Ocean Coast. Res.

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New records of the introduced solitary ascidians, Ciona robusta and Rhodosoma turcicum, have been added to the southwestern Atlantic Ocean, from Cabo Frio to Ilha Grande Bay, Brazil, in surveys conducted since 2009. Both species occurred on natural and artificial substrates, in predator-protected habitats, and regions close to harbors or other maritime activities. The distribution of Ciona robusta was related to water temperature, influenced by upwelling intensity and temperatures below 25ºC, while R. turcicum was not sensitive to the range of recorded water temperatures. The occurrence of both species on sites close to maritime terminals suggests vessels as potential vectors.

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