26 Occurrence of Living Cold-Water Corals at Large Depths Within Submarine Canyons of the Northwestern Mediterranean Sea

Ayma, A.; Aguzzi, Jacopo; Canals, Miquel; Lastras, Galderic; Mechó, Ariadna; Iacono, Claudio Lo

doi:10.1007/978-3-319-91608-8_26

Cited by 12 publications

(10 citation statements)

References 69 publications

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“…The first studies using a remotely operated vehicle (ROV) were published in 2009 (Freiwald et al, 2009;Orejas et al, 2009;Salomidi et al, 2009), and later on, ROV was the method most used both in shallow and deep waters. We also found one case study where a fixed camera was used in the Ionian Sea (D'Onghia et al, 2017), and a paper where ROV and Agassiz trawl were used complementarily for in situ observation and to sample corals in the Blanes Canyon (France), respectively (Aymà et al, 2019).…”

Section: Methods Used To Detect Impactsmentioning

confidence: 99%

“…Also general waste can provide a substratum for benthic reef species (four Cnidaria and one Echinodermata). Moreover, other examples of other interactions with marine litter came from Aymà et al (2019). They recovered with an Agassiz trawl some fragments of a Desmophyllum pertusum colony growing on a nylon net cords at 752-864 m depth in the Blanes Canyon (Western Mediterranean Sea).…”

Section: Other Interactions (Substratum and Incorporation)mentioning

confidence: 99%

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Impacts of Marine Litter on Mediterranean Reef Systems: From Shallow to Deep Waters

Angiolillo

Fortibuoni

2020

Front. Mar. Sci.

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Biogenic reefs are known worldwide to play a key role in benthic ecosystems, enhancing biodiversity and ecosystem functioning at every level, from shallow to deeper waters. Unfortunately, several stressors threaten these vulnerable systems. The widespread presence of marine litter represents one of these. The harmful effects of marine litter on several organisms are known so far. However, only in the last decade, there was increasingly scientific and public attention on the impacts on reef organisms and habitats caused by litter accumulating on the seafloor. This review aims to synthesize literature and discuss the state of current knowledge on the interactions between marine litter and reef organisms in a strongly polluted basin, the Mediterranean Sea. The multiple impacts (e.g., entanglement, ghost-fishing, coverage, etc.) of litter on reef systems, the list of species impacted, and the main litter categories were identified, and a map of the knowledge available so far on this topic was provided. Seventy-eight taxa resulted impacted by marine litter on Mediterranean reefs, and the majority belonged to the phylum Cnidaria (41%), including endangered species like the red coral (Corallium rubrum) and the madrepora coral (Madrepora oculata). Entanglement, caused mainly by abandoned, lost, or otherwise discarded fishing gear (ALDFG), was the most frequent impact, playing a detrimental effect mainly on coralligenous arborescent species and cold-water corals (CWCs). The information was spatially heterogeneous, with some areas almost uncovered by scientific studies (e.g., the Aegean-Levantine Sea and the Southern Mediterranean Sea). Although many legal and policy frameworks have been established to tackle this issue [e.g., marine strategy framework directive (MSFD) and the Barcelona Convention], several gaps still exist concerning the assessment of the impact of marine litter on marine organisms, and in particular on reefs. There is a need for harmonized and standardized monitoring protocols for the collection of quantitative data to assess the impact of litter on reefs and animal forests. At the same time, urgent management measures limiting, for instance, the impact of ALDFG and other marine litter are needed to preserve these valuable and vulnerable marine ecosystems.

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Section: Methods Used To Detect Impactsmentioning

confidence: 99%

Section: Other Interactions (Substratum and Incorporation)mentioning

confidence: 99%

Impacts of Marine Litter on Mediterranean Reef Systems: From Shallow to Deep Waters

Angiolillo

Fortibuoni

2020

Front. Mar. Sci.

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“…Seabed terrain and substrate variation provide a variety of suitable habitats for benthic communities in submarine canyons (Schlacher et al, 2007;McClain and Barry, 2010;De Mol et al, 2011;Cunha et al, 2011;Paterson et al, 2011;Vetter et al, 2010;Davies et al, 2014;Fanelli et al, 2018) with submarine canyons recognized as areas of significant ecological importance. They are considered 'hotspots' for biodiversity (De Leo et al, 2010;Vetter et al, 2010;Cunha et al, 2011;Martín et al, 2011;Puig et al, 2013Puig et al, , 2014 and are able to support coldwater coral ecosystems (Orejas et al, 2009;Huvenne et al, 2011;Morris et al, 2013;Khripounoff et al, 2014;van den Beld et al, 2017;Aymà et al, 2019;Puig and Gili, 2019), with which can be associated more than 1,300 species (Roberts et al, 2006;Henry and Roberts, 2015). In particular, Lophelia pertusa (syn.…”

Section: Introductionmentioning

confidence: 99%

Are Non-reef Habitats as Important to Benthic Diversity and Composition as Coral Reef and Rubble Habitats in Submarine Canyons? Analysis of Controls on Benthic Megafauna Distribution in the Porcupine Bank Canyon, NE Atlantic

Appah

Harris

et al. 2020

Front. Mar. Sci.

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Submarine canyons support high biomass communities as they act as conduits where sediments, nutrients, and organic matter from continental shelves, or those that are carried along by slope currents, are transported into the abyssal zone. The Porcupine Bank Canyon (PBC), located on the Irish continental margin and isolated from terrigenous inputs, reveals a complex terrain and substrate variation that affect the distribution of benthic fauna. Here, ROV-based benthic video, conductivity-temperaturedepth (CTD), current velocity profiles, suspended particulate organic matter (POM) and bathymetric data were assessed to determine the controls on the distribution of benthic megafauna throughout the canyon. Multivariate analysis of the benthic community reveals significant differences in community structure among habitats and site locations throughout the canyon. Furthermore, these results show that non-reef habitats exhibit more variation in the composition of benthic taxa than coral reef and rubble habitats, with the following species contributing most to the structural differentiation between habitats: Leiopathes glaberrima (12.46%), Hexadella dedritifera (10.37%), Cidaris cidaris (9.31%), Aphrocallistes beatrix (9.33%), Araeosoma fenestratum (9.11%), Stichopathes cf. abyssicola (7.39%), Anthomastus grandiflorus (4.66%), and Benthogone rosea (3.84%). In addition, greater diversity, taxa evenness and high abundance of motile fauna were observed in non-reef habitat and the canyon flank. Seabed terrain features (depth, slope) are the most important environmental drivers that affect benthic taxa distribution while site locations and habitat type are the categorical variables that influence taxa distribution in the PBC. The highest mean current speed was observed on the canyon flank where the highest Shannon's diversity was recorded while mean current speed ranged from 18.2-31.3 cm s −1. As the PBC is cut off from direct terrigenous input, this research contributes to understanding cold-water coral habitat responses to natural

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“…Dendrophyllia cornigera, the yellow coral, is a considerable component of both mesophotic and deep coral ecosystems in the Mediterranean Sea, extending its bathymetric range up to participate to deep-sea ecosystems dominated by white coldwater corals (Roberts et al, 2009;Angeletti et al, 2014;Taviani et al, 2017;Altuna and Poliseno, 2019;Aymà et al, 2019;Chimienti et al, 2019;Puig and Gili, 2019;Rueda et al, 2019). This coral species was observed also as part of the mesophotic-to-deep coral communities in the Atlantic, from the Azores to the Bay of Biscay (Rodolfo-Metalpa et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

The Yellow Coral Dendrophyllia cornigera in a Warming Ocean

et al. 2019

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Ocean warming is expected to impinge detrimentally on marine ecosystems worldwide up to impose extreme environmental conditions capable to potentially jeopardize the good ecological status of scleractinian coral reefs at shallow and bathyal depths. The integration of literature records with newly acquired remotely operated vehicle (ROV) data provides an overview of the geographic distribution of the temperate coral Dendrophyllia cornigera spanning the eastern Atlantic Ocean to the whole Mediterranean Sea. In addition, we extracted temperature values at each occurrence site to define the natural range of this coral, known to maintain its physiological processes at 16 • C. Our results document a living temperature range between ∼7 • C and 17 • C, suggesting that the natural thermal tolerance of this eurybathic coral may represent an advantage for its survival in a progressively warming ocean.

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26 Occurrence of Living Cold-Water Corals at Large Depths Within Submarine Canyons of the Northwestern Mediterranean Sea

Cited by 12 publications

References 69 publications

Impacts of Marine Litter on Mediterranean Reef Systems: From Shallow to Deep Waters

Impacts of Marine Litter on Mediterranean Reef Systems: From Shallow to Deep Waters

Are Non-reef Habitats as Important to Benthic Diversity and Composition as Coral Reef and Rubble Habitats in Submarine Canyons? Analysis of Controls on Benthic Megafauna Distribution in the Porcupine Bank Canyon, NE Atlantic

The Yellow Coral Dendrophyllia cornigera in a Warming Ocean

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