Spreading and autoecology of the invasive species Gracilaria vermiculophylla (Gracilariales, Rhodophyta) in the lagoons of the north-western Adriatic Sea (Mediterranean Sea, Italy)

Sfriso, Adriano; Wolf, Marion Adelheid; Maistro, Silvia; Sciuto, Katia; Moro, Isabella

doi:10.1016/j.ecss.2012.07.024

Cited by 35 publications

(24 citation statements)

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“…In particular, the Venice Lagoon with 35 NIS macrophytes (ca. 70% of the algal flora, Sfriso et al, 2012b), out of the 52 reported in the ADRIA, confirms to be the major NIS hot spot of the Adriatic Sea.…”

Section: Trends In Introduction Ratesmentioning

confidence: 90%

“…Among the NIS introduced through aquaculture, the most successful invaders are the bivalves Arcuatula senhousia, Crassostrea gigas and Ruditapes philippinarum. The occurrence of Gracilaria vermiculophylla (Sfriso et al, 2012b), a species previously introduced in the NE Atlantic, may be attributed to the aquaculture activity or the shellfish trade via importations from the Atlantic. Corridors are also significant as a pathway (spreading of Lessepsian NIS), however, it is less important than in other MSFD subregions.…”

Section: F Trends In Pathwaysmentioning

confidence: 99%

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Alien species in the Mediterranean Sea by 2012. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part 2. Introduction trends and pathways

et al. 2012

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More than 60 marine non-indigenous species (NIS) have been removed from previous lists and 84 species have been added, bringing the total to 986 alien species in the Mediterranean [775 in the eastern Mediterranean (EMED), 249 in the central Mediterranean (CMED), 190 in the Adriatic Sea (ADRIA) and 308 in the western Mediterranean (WMED)]. There were 48 new entries since 2011 which can be interpreted as approximately one new entry every two weeks. The number of alien species continues to increase, by 2-3 species per year for macrophytes, molluscs and polychaetes, 3-4 species per year for crustaceans, and 6 species per year for fish. The dominant group among alien species is molluscs (with 215 species), followed by crustaceans (159) and polychaetes (132). Macrophytes are the leading group of NIS in the ADRIA and the WMED, reaching 26-30% of all aliens, whereas in the EMED they barely constitute 10% of the introductions. In the EMED, molluscs are the most species-rich group, followed by crustaceans, fish and polychaetes. More than half (54%) of the marine alien species in the Mediterranean were probably introduced by corridors (mainly Suez). Shipping is blamed directly for the introduction of only 12 species, whereas it is assumed to be the most likely pathway of introduction (via ballasts or fouling) of another 300 species. For approximately 100 species shipping is a probable pathway along with the Suez Canal and/or aquaculture. Approximately 20 species have been introduced with certainty via aquaculture, while >50 species (mostly macroalgae), occurring in the vicinity of oyster farms, are assumed to be introduced accidentally as contaminants of imported species. A total of 18 species are assumed to have been introduced by the aquarium trade. Lessepsian species decline westwards, while the reverse pattern is evident for ship-mediated species and for those introduced with aquaculture. There is an increasing trend in new introductions via the Suez Canal and via shipping.

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Section: Trends In Introduction Ratesmentioning

confidence: 90%

Section: F Trends In Pathwaysmentioning

confidence: 99%

Alien species in the Mediterranean Sea by 2012. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part 2. Introduction trends and pathways

et al. 2012

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“…the Po Delta Lagoon and Pialassa della Baiona pond in the North-Adriatic Sea; the Lagoon of Olbia in the Tyrrhenian Sea; the Mar Piccolo of Taranto in the Ionian Sea. All these Italian sites share with Venice a number of NIS whose records have often occurred after the Venetian one (Cecere et al 2000(Cecere et al , 2011Doneddu 2011;Lodola et al 2012;Petrocelli et al 2013;Sfriso et al 2010Sfriso et al , 2012Sfriso et al , 2014c. The continuous import/export of live bivalves for farming among these culture sites is likely to have facilitated the spread of several populations of Pacific origin, following a stepping stone colonization process, in which Venice has played the role of sink and source of NIS.…”

Section: Discussionmentioning

confidence: 99%

Current status and trends of biological invasions in the Lagoon of Venice, a hotspot of marine NIS introductions in the Mediterranean Sea

et al. 2015

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“…Thalli were attached to other alien algae, such as Gracilaria vermiculophylla, Agardhiella subulata and Soleria filiformis, which most likely were introduced by aquaculture (Zenetos et al, 2010;Sfriso et al, 2012). Later, U. marinum was also recorded in Venice Lagoon and in Pialassa della Baiona in Emilia-Romagna as an epiphyte on many other species, mostly Cladophorales.…”

Section: Ecologymentioning

confidence: 99%

“…However, in the Adriatic Sea, the 52 alien macrophytes are the largest NIS group, about as many as the introduced Mollusca and Polichaeta together (27 taxa each). Colonization affects the North Adriatic coastal lagoons mainly, Venice Lagoon in particular where new species are continuously reported (Sfriso et al, 2010(Sfriso et al, , 2012Occhipinti Ambrogi et al, 2011;Wolf et al, 2011). Most of them are introduced via aquaculture or shellfish trade.…”

Section: Introductionmentioning

confidence: 99%

On the occurrence of Uronema marinum Womersley (Chaetophorales, Chlorophyta) in the north-western lagoons of the Adriatic Sea, Mediterranean Sea (Italy)

2013

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We study the occurrence of the alien macroalga Uronema marinum in the lagoon of Venice, in the lagoons and ponds of the Po Delta and in Pialassa della Baiona in Emilia-Romagna. It was in summer 2012 that U. marinum was identified for the first time, even though it has been present at least since 2008. This species, originally described from South Australia and Western Australia and probably imported with the Manila clam Tapes philippinarum, is prevalently associated with thalli of another introduced species, Agardhiella subulata, and the invasive Gracilaria vermiculophylla, which also have a Pacific origin and have recently colonized the same lagoon areas. Uronema marinum is currently widespread in the whole lagoon surfaces, but is particularly abundant in stagnant waters, rich in nutrients, where Gracilariaceae and Solieriaceae prevail on Ulvaceae.

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Spreading and autoecology of the invasive species Gracilaria vermiculophylla (Gracilariales, Rhodophyta) in the lagoons of the north-western Adriatic Sea (Mediterranean Sea, Italy)

Cited by 35 publications

References 13 publications

Alien species in the Mediterranean Sea by 2012. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part 2. Introduction trends and pathways

Alien species in the Mediterranean Sea by 2012. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part 2. Introduction trends and pathways

Current status and trends of biological invasions in the Lagoon of Venice, a hotspot of marine NIS introductions in the Mediterranean Sea

On the occurrence of Uronema marinum Womersley (Chaetophorales, Chlorophyta) in the north-western lagoons of the Adriatic Sea, Mediterranean Sea (Italy)

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