Spread of the Introduced Red AlgaLophocladia lallemandiiin the Tuscan Archipelago (NW Mediterranean Sea)

Bedini, Roberto; Bonechi, Lisa; Piazzi, Luigi

doi:10.7872/crya.v32.iss4.2011.383

Cited by 9 publications

(12 citation statements)

References 22 publications

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“…1). Lophocladia lallemandii started to spread around the island in 2008, and in 2010 it colonized with variable coverage a stretch of about 10 km between 2 and 10 m depth (Bedini et al 2011). The alga begins to grow in July, reaches its maximum abundance in November and completely disappears between January and June (Bedini et al 2011).…”

Section: Methodsmentioning

confidence: 99%

“…In both areas, the alga is able to reach high values of percentage cover and biomass (Bedini et al 2011) on rocky bottoms and in seagrass meadows , Sureda et al 2008, Marbà et al 2014. Cystoseira beds are particularly subjected to invasion Ballesteros 2007, Bedini et al 2011), as thalli of these algae may offer a valuable substrate for L. lallemandii anchoring (Bedini et al 2011). Negative effects of L. lallemandii invasion have been described for sessile invertebrates in meadows of the seagrass Posidonia oceanica (L.) Delile (Cabanellas-Reboredo et al 2010, while no information is available about effects of invasion on mobile macro-invertebrates.…”

Section: Introductionmentioning

confidence: 99%

“…The erect structure of Cystoseira thalli, like those of other canopy species, can limit the spread of most invasive seaweeds, constituting a mechanical barrier against the invasion (Bulleri et al 2010). However, invaders such as the Rhodophyta Lophocladia lallemandii (Montagne) F. Schmitz (Bedini et al 2011) seem to be facilitated by the presence of Cystoseira beds. This species is widespread in tropical and subtropical waters and was probably introduced into the Mediterranean Sea through the Suez Canal (Boudouresque and Verlaque 2002).…”

Section: Introductionmentioning

confidence: 99%

“…This species is widespread in tropical and subtropical waters and was probably introduced into the Mediterranean Sea through the Suez Canal (Boudouresque and Verlaque 2002). Until now, in the Mediterranean Sea, invasive events by L. lallemandii have only been described in the Balearic Islands (Patzner, 1998, Cebrian and Ballesteros 2010, Marbà et al 2014 and in the Tuscan Archipelago (Bedini et al 2011). In both areas, the alga is able to reach high values of percentage cover and biomass (Bedini et al 2011) on rocky bottoms and in seagrass meadows , Sureda et al 2008, Marbà et al 2014.…”

Section: Introductionmentioning

confidence: 99%

“…Until now, in the Mediterranean Sea, invasive events by L. lallemandii have only been described in the Balearic Islands (Patzner, 1998, Cebrian and Ballesteros 2010, Marbà et al 2014 and in the Tuscan Archipelago (Bedini et al 2011). In both areas, the alga is able to reach high values of percentage cover and biomass (Bedini et al 2011) on rocky bottoms and in seagrass meadows , Sureda et al 2008, Marbà et al 2014. Cystoseira beds are particularly subjected to invasion Ballesteros 2007, Bedini et al 2011), as thalli of these algae may offer a valuable substrate for L. lallemandii anchoring (Bedini et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Mobile epifaunal assemblages associated with Cystoseira beds: comparison between areas invaded and not invaded by Lophocladia lallemandii

Bedini¹,

Bonechi²,

Piazzi³

2014

Sci. Mar.

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Summary:The study compared the structure of mobile epifaunal assemblages associated with Mediterranean Cystoseira beds between areas invaded and not invaded by Lophocladia lallemandii. A total of 150 taxa were identified: 42 Polychaeta, 78 Arthropoda, 26 Mollusca and 4 Echinodermata. Epifaunal assemblages differed between areas invaded and not invaded by Lophocladia lallemandii when the invasive species reached maximum values of cover and biomass, while differences between conditions were not significant in other periods of the year. The main differences were the greater abundance of amphipods, isopods and polychaetes in invaded areas and the greater abundance of molluscs and decapods in non-invaded areas, while richness and total abundance of organisms were not significantly different between conditions. The effects of Lophocladia lallemandii invasion on Cystoseira-associated assemblages seem to be limited to the period of vegetative growth of the alga and reversible during the period of its vegetative rest.Keywords: biological invasions; Cystoseira crinita; Lophocladia lallemandii; Mediterranean Sea; mobile epifauna. Comunidad de epifauna móvil asociada a las bosques de Cystoseira: comparación entre áreas invadidas y no invadidas por Lophocladia lallemandiiResumen: Este estudio compara la estructura de la comunidad de macroinvertebrados móviles asociada a bosques mediterráneos de Cystoseira entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas. Se identificaron un total de 150 táxones: 42 Polychaeta, 78 Arthropoda, 26 Mollusca, 4 Echinodermata. La comunidad epifaunal difirió entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas cuando la Rhodophyta introducida alcanzó valores máximos de cobertura y biomasa, mientras que no presentó diferencias entre condiciones en otros períodos del año. Estas diferencias fueron principalmente debidas a una mayor abundancia de anfípodos, isópodos y poliquetos en áreas invadidas, y de moluscos y decápodos en áreas no invadidas, mientras que la riqueza y abundancia total de organismos no presentaron diferencias significativas entre condiciones. Los efectos de la invasión de Lophocladia lallemandii sobre las comunidades asociadas a Cystoseira parecen estar restringidos al período de crecimiento vegetativo del alga, siendo reversibles durante el período de pausa de crecimiento.

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Section: Methodsmentioning

confidence: 99%