Coralline algae on hard and soft substrata of a temperate mixed siliciclastic-carbonatic platform: Sensitive assemblages in the Zannone area (western Pontine Archipelago; Tyrrhenian Sea)

Ingrassia, Michela; Martorelli, Eleonora; Sañé, Elisabet; Falese, F.; Bosman, Alessandro; Bonifazi, Andrea; Argenti, L.; Chiocci, Francesco Latino

doi:10.1016/j.marenvres.2019.03.009

Cited by 12 publications

(12 citation statements)

References 51 publications

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“…At all sites, except Punta Campanella and Secchitiello, we found both species, P. calcareum and L. corallioides, protected by the Habitats Directive (92/43/EEC). These results confirm the studies on Mediterranean RBs that report a high CA species diversity [ 9 , 53 , 70 , 71 , 72 , 86 , 104 , 105 , 106 , 107 , 108 , 109 , 110 ], highlighting the elevated scientific and ecological value of these remote biodiversity hot spots in the Mediterranean Sea.…”

Section: Discussionsupporting

confidence: 90%

“…The investigated RBs were similar with each other and with other deep RBs of the Mediterranean Sea [ 9 , 10 , 86 , 92 ], characterized by the pralines’ facies, as described by Pérès and Picard [ 93 ]. CA growth-forms ranged from encrusting/warty to lumpy/fruticose, with several protuberances and branches degrees, mainly depending on the CA species composing the rhodolith [ 10 ].…”

Section: Discussionsupporting

confidence: 78%

“…A spatial variability of rhodolith covers was observed within the different sites along the ROV video-routes. Spatial heterogeneity, with high cover of rhodoliths interspersed with patches of sediments, has been already reported for deep Mediterranean RBs and seems to be mainly related to seafloor morphology and/or bottom currents [ 9 , 72 , 86 ].…”

Section: Discussionmentioning

confidence: 94%

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Distribution and Characterization of Deep Rhodolith Beds off the Campania coast (SW Italy, Mediterranean Sea)

Rendina

Kaleb

Caragnano

et al. 2020

Plants

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Rhodolith beds (RBs) are bioconstructions characterized by coralline algae, which provide habitat for several associated species. Mediterranean RBs are usually located in the mesophotic zone (below 40 m), and thus are frequently remote and unexplored. Recently, the importance and vulnerability of these habitats have been recognized by the European Community and more attention has been drawn to their investigation and conservation. This study reports the results of an extensive monitoring program, carried out within the Marine Strategy Framework Directive (2008/56/EC), in six sites off the Campania coast (Italy, Mediterranean Sea). New insights were given into the distribution, cover, vitality (i.e., live/dead rhodolith ratio), structural complexity, and coralline algae composition of RBs. Remotely operated vehicles (ROV) investigations allowed the description of several RBs, and the discovery of a RB with rhodolith cover >65% offshore the Capri Island. Only two sites (Secchitiello and Punta Campanella) showed a very low mean cover of live rhodoliths (<10%); hence, not being classifiable as RBs. The collected rhodoliths were mostly small pralines (~2 cm), spheroidal to ellipsoidal, with growth-forms ranging from encrusting/warty to fruticose/lumpy. Coralline algae identification revealed a high diversity within each bed, with a total of 13 identified taxa. The genus Lithothamnion dominated all sites, and Phymatolithon calcareum and Lithothamnion corallioides, protected by the Habitats Directive (92/43/EEC), were detected in all RBs.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 94%

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Distribution and Characterization of Deep Rhodolith Beds off the Campania coast (SW Italy, Mediterranean Sea)

Rendina

Kaleb

Caragnano

et al. 2020

Plants

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“…Furthermore, it is noteworthy how the presence of a heterogeneous sea floor, which in turn supports diversified deep-sea assemblages, is frequently associated to volcanic sea floor (Ingrassia et al, 2019;de la Torriente et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Evaluating the distribution of priority benthic habitats through a remotely operated vehicle to support conservation measures off Linosa Island (Sicily Channel, Mediterranean Sea)

Romagnoli

Grasselli

Costantini

et al. 2021

Aquatic Conservation

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1. Explorations of the Mediterranean deep sea using remotely operated vehicles have shown that the sea bed hosts rich habitats, supporting high biodiversity.However, there have been only a few studies dealing with the southern part of the basin, leading to limited protection and conservation efforts in this area.2. This study aimed to explore the sea bed off Linosa Island (Sicily Channel, southern Mediterranean Sea), which is considered a 'sentinel area' for alien species and global environmental changes owing to its geographic position, thus deserving special attention. 3. Remotely operated vehicle surveys, carried out in 2016 and 2017, were analysed to provide the first ecological characterization of benthic assemblages at depths −19 -−384 m around Linosa Island. 4. Communities were dominated by three priority habitats, amounting to 39% of the almost 5 km of the sea floor that was surveyed. These are represented in the euphotic zone by Posidonia oceanica meadows and, at greater depth, by newly discovered dense coral forests and extended rhodolith/maërl beds. Sixteen habitat-forming species included in the Red List of the International Union for Conservation of Nature (e.g. gorgonians Eunicella cavolini and Paramuricea clavata, and black corals Antipathella subpinnata and Leiopathes glaberrima) were recorded, as well as individuals of Sargassum sp. at −100 m depth.5. The volcanic island of Linosa represents a small, naturally preserved area, with very limited human pressure, hosting rich marine benthic biodiversity. Given the high species and habitat richness, we recommend its inclusion in the Special Protected Areas of Mediterranean Importance project (United Nations Environment Programme) and suggest a redefinition of the existing marine protected area extension.

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“…In detail, D. violacea has been observed in the Gibraltar Strait (Ramos Esplá et al 1992), the Alboran Sea (De la Torriente et al 2018; Moya-Urbano et al 2019), the Balearic Sea (from the Ebro area to the Gulf of Lion, including the Balearic Islands) (Turon 1985;Massutí & Reñones 2005;Ordines et al 2011;Barberá et al 2012;DeLaHoz et al 2018;Demestre et al 2018), the Tyrrhenian Sea (Bo et al 2011;Esposito et al 2018;Ingrassia et al 2019), the Sicily Channel (Lubet & Azouz 1969), the Lybian Sea (El Lakhrach et al 2012), the Adriatic Sea (Petović et al 2016), the Levantine Sea (Çinar 2014) and the Aegean Sea (Çinar 2014;Antoniadou et al 2016). Most of these records concern the occasional finding of one or few colonies, while quantitative records from specific areas are scarce, and the few known facies are reported only qualitatively as abundant or conspicuous occurrences (e.g.…”

Section: Introductionmentioning

confidence: 99%

Mesophotic rocks dominated by Diazona violacea: a Mediterranean codified habitat

Mastrototaro

Aguilar²,

Álvarez³

et al. 2020

The European Zoological Journal

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Coralline algae on hard and soft substrata of a temperate mixed siliciclastic-carbonatic platform: Sensitive assemblages in the Zannone area (western Pontine Archipelago; Tyrrhenian Sea)

Cited by 12 publications

References 51 publications

Distribution and Characterization of Deep Rhodolith Beds off the Campania coast (SW Italy, Mediterranean Sea)

Distribution and Characterization of Deep Rhodolith Beds off the Campania coast (SW Italy, Mediterranean Sea)

Evaluating the distribution of priority benthic habitats through a remotely operated vehicle to support conservation measures off Linosa Island (Sicily Channel, Mediterranean Sea)

Mesophotic rocks dominated by Diazona violacea: a Mediterranean codified habitat

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