First Report on the Distribution and Impact of Marine Alien Species in Coastal Benthic Assemblages Along the Catalan Coast

García, María José López; Weitzmann, Boris; Pinedo, Susana; Cebrián, Emma; Ballesteros, Enric

doi:10.1007/698_2015_411

Cited by 10 publications

(11 citation statements)

References 83 publications

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“…In the eastern Iberian Peninsula, C. cylindracea recently spreads over the coastal area between Catalonia (García et al 2015) and Andalusia (Altamirano et al 2014), where it shows a similar distribution pattern to that reported in other Mediterranean regions (Verlaque et al 2003, Klein andVerlaque 2008). Thus, it thrives in shallow subtidal waters and in deep subtidal habitats beyond 30 m depth.…”

Section: Introductionsupporting

confidence: 67%

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The ecological condition of vermetid platforms affects the cover of the alien seaweed <em>Caulerpa cylindracea</em>

Terradas-Fernández¹,

Valverde-Urrea²,

Casado‐Coy³

et al. 2020

Sci. Mar.

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The seaweed Caulerpa cylindracea Sonder is one of the most important invaders on Mediterranean rocky shores. However, many driving pressures affecting its spread are poorly understood and seem to involve the interactions between abiotic and biotic factors. We studied the invasiveness of C. Cylindracea on two shallow vermetid platforms with a contrasting ecological status on which C. Cylindracea was first detected simultaneously 15 years ago. The cover values of C. Cylindracea and the other macroalgal species were assessed for one year, embracing the whole platform width. Caulerpa cylindracea cover was higher on the platform that had a low ecological status, especially during warmer months at the outer seaward margin. The ecological status of the overstory of native species seems to be a key point conditioning the success of C. Cylindracea invasiveness on these platforms.

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Section: Introductionsupporting

confidence: 67%

“…Thus, it thrives in shallow subtidal waters and in deep subtidal habitats beyond 30 m depth. It is more abundant on margins of Posidonia meadows or on dead Posidonia matte but also colonizes maerl bottoms and photophilous assemblages (Ruiz et al 2011, Enguix et al 2014, García et al 2015.…”

Section: Introductionmentioning

confidence: 99%

The ecological condition of vermetid platforms affects the cover of the alien seaweed <em>Caulerpa cylindracea</em>

Terradas-Fernández¹,

Valverde-Urrea²,

Casado‐Coy³

et al. 2020

Sci. Mar.

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“…The colonies of O. crispata collected so far are scattered across different and relatively distant areas and grow on different substrates (from man-made rocky structures to granitic and basaltic natural reefs) at depths of between 2 (Hoeksema & Ocaña Vicente, 2014) and 12 metres. Nonetheless, no other specimens of O. crispata have ever been observed in our annual monitoring surveys at 60 different sites along the coast of Catalonia (García et al, 2015).…”

Section: Discussionmentioning

confidence: 88%

The zooxanthellate scleractinian coral Oulastrea crispata (Lamarck, 1816), an overlooked newcomer in the Mediterranean Sea?

Mariani

Vicente²,

López‐Sendino³

et al. 2018

Medit. Mar. Sci.

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The zooxanthellate scleractinian coral Oulastrea crispata, a widely distributed species across central Indo-Pacific nearshore marine habitats, has been first reported from the Mediterranean Sea (Corsica) in 2014. Here we report on two new sites for this species in the NW Mediterranean Sea and provide a general description of external morphological characters of the colonies and a detailed account of the cnidom to help future identifications. Living specimens may appear virtually identical to small colonies (~5 cm) of the Mediterranean zooxanthellate scleractinian Cladocora caespitosa. While this species shows long, ramified, independent corallites, with cylindrical calices, O. crispata has enlarged, cup-like calices, which can be joined by the coenosteum. It also shows clear differences among several groups of nematocysts, principally the presence in the filaments of large penicilli (p-mastigophore) of one type, which are absent in C. caespitosa. Identifications based on underwater observations or even the analysis of photographs may easily lead to misleading identifications. We hypothesize that O. crispata may have gone unnoticed because of misidentifications as C. caespitosa. More detailed research is needed to get reliable maps of the actual distribution of this apparently non-indigenous species in the Mediterranean Sea.

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“…Since then, it has colonized marine communities throughout the entire Mediterranean basin (Piazzi et al, 2005;Klein and Verlaque, 2008), where it can exert strong detrimental effects on native communities (Piazzi et al, 2001;Klein and Verlaque, 2008;Bulleri et al, 2016Bulleri et al, , 2017. However, despite its rampant success, several C. cylindracea meadows have suffered sudden steep declines in abundance some years after the onset of the invasion (Klein and Verlaque, 2008;García et al, 2016;Santamaría et al, 2021), which may indicate the existence of certain resistance mechanisms against this invasive species. Among these, herbivory on C. cylindracea has been described and assessed mainly in relation to the strictly herbivorous species present in the Mediterranean Sea, such as the fishes Sarpa salpa and Siganus luridus (Azzurro et al, 2004;Ruitton et al, 2006;Tomas et al, 2011b;Santamaría et al, 2021), and the sea urchins Paracentrotus lividus, Sphaerechinus granularis and Arbacia lixula (Ruitton et al, 2006;Bulleri et al, 2009;Cebrian et al, 2011;Tomas et al, 2011a).…”

Section: Introductionmentioning

confidence: 99%

Herbivory on the Invasive Alga Caulerpa cylindracea: The Role of Omnivorous Fishes

et al. 2021

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Herbivory has long been considered an important component of biotic resistance against macroalgae invasions in marine habitats. However, most of the studies on herbivory of invasive algae refer only to consumption by strictly herbivorous organisms, whereas consumption by omnivorous species has been largely ignored and rarely quantified. In this study, we assess whether the commonest omnivorous sparid species in the Mediterranean Sea are consuming the highly invasive alga, Caulerpa cylindracea, and determine both, its importance in their diet and their electivity toward it as a source of food. Our results confirm that three of the four fish species studied regularly consume C. cylindracea, but in most cases, the importance of C. cylindracea in the diet is low. Indeed, the low electivity values indicate that all species avoid feeding on the invasive alga and that it is probably consumed accidentally. However, despite animals and detritus being the main food for these sparid species, several individual specimens were found to have consumed high amounts of C. cylindracea. This suggests a potential role that these fish species, being really abundant in shallow rocky bottoms, may play in controlling, to some extent, the abundance of the invader.

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First Report on the Distribution and Impact of Marine Alien Species in Coastal Benthic Assemblages Along the Catalan Coast

Cited by 10 publications

References 83 publications

The ecological condition of vermetid platforms affects the cover of the alien seaweed <em>Caulerpa cylindracea</em>

The ecological condition of vermetid platforms affects the cover of the alien seaweed <em>Caulerpa cylindracea</em>

The zooxanthellate scleractinian coral Oulastrea crispata (Lamarck, 1816), an overlooked newcomer in the Mediterranean Sea?

Herbivory on the Invasive Alga Caulerpa cylindracea: The Role of Omnivorous Fishes

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