Last snails standing since the Early Pleistocene, a tale of Calliostomatidae (Gastropoda) living in deep-water coral habitats in the north-eastern Atlantic

Hoffman, Leon; Beuck, Lydia; Heugten, B. van; Lavaleye, M.; Freiwald, André

doi:10.11646/zootaxa.4613.1.4

Cited by 756 publications

(4 citation statements)

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“…The Mauritanian Slope (NE Atlantic) Has No Desert: Swiftia phaeton (Holaxonia… DOI: http://dx.doi.org/10.5772/intechopen.104635 by a diverse variety of animals such as sponges, fish, octopus, mollusks, and grazing echinoderms such as seastars (Figures 2 and 7). Grazing behavior of mollusks was also observed in some colonies of this species (see also [52]).…”

Section: Distribution Of the Size Of Colonies Of Swiftia Phaeton (L: ...mentioning

confidence: 67%

The Mauritanian Slope (NE Atlantic) Has No Desert:Swiftia phaeton(Holaxonia: Plexauridae) Shaping Coral Gardens

Sampaio¹,

Beuck²,

Menezes³

et al. 2023

Corals - Habitat Formers in the Anthropocene

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Swiftia Duchassaing & Michelotti, 1864, is often found sparse in the NE Atlantic Ocean and Mediterranean Sea. When the cruise MSM 16/3 “PHAETON” filmed the upper bathyal off Mauritania in 2010, the first dense populations dominated by Swiftia were discovered in the NE Atlantic Ocean, co-occurring with the framework-forming scleractinians Desmophyllum pertusum (Linnaeus, 1758) and Madrepora oculata Linnaeus, 1758. Remotely operated vehicle (ROV) video annotation from two canyons and two coral mounds considered Swiftia phaeton Sampaio, Beuck & Freiwald, 2022 presence, size class and abundance as well as substrate and geomorphology of the seafloor. Coral gardens definition included abundance and size of the species. Dense and very dense mono- and multispecific coral gardens dominated by S. phaeton were mapped between 20°24′N and 17°54′N in 470–640 m depth. The resilience of these coral gardens off Mauritania is mainly linked to the presence of hard substrate available to settle and to the exposition of currents rich in food. Still, these ecosystems are located inside a hydrocarbon exploration area off Mauritania and where fisheries occur since the 1960s. Sedimentation plumes caused by both activities can travel and impact on settlement, development, and survival of these populations. Hence, these vulnerable “oases” should be protected.

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Section: Distribution Of the Size Of Colonies Of Swiftia Phaeton (L: ...mentioning

confidence: 67%

The Mauritanian Slope (NE Atlantic) Has No Desert:Swiftia phaeton(Holaxonia: Plexauridae) Shaping Coral Gardens

Sampaio¹,

Beuck²,

Menezes³

et al. 2023

Corals - Habitat Formers in the Anthropocene

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“…Some of the abovementioned gastropods probably feed on corals, on anemones or hydroids which grow on coral skeletons (Calliostoma maurolici, C. leptophyma, Coralliophila richardi, Iphitus tuberatus), or on epifaunal sponges (Diodora tenuiclathrata, Puncturella profundi, P. agger, Emarginula christiaensi). The association of deep white Calliostoma species and CWC has been pointed out on several occasions (e.g., Beck et al 2006;Hoffman et al 2019a) and C. maurolici has been photographed grazing on live Madrepora oculata and on the actiniaria Phelliactis hertwigii Simon, 1892, common in the CWC framework (Hoffman et al 2019a). On the other hand, Iphitus tuberatus, Asperarca nodulosa, Lima marioni, Delectopecten vitreus and Spondylus gussonii are common species in the Mediterranean CWC ecosystem (see Rueda et al 2019 for a review) and they are also widespread in the N Atlantic.…”

Section: Bathymetric Distribution and Habitatmentioning

confidence: 99%

“…The identification of the species was carried out using the reference taxonomic bibliography for the NE Atlantic regarding gastropods (Bouchet & Warén 1980, 1986Warén 1989aWarén , 1991Warén , 1992Warén , 1993Warén , 1996Beck et al 2006;Hoffman et al 2010Hoffman et al , 2011aHoffman et al , 2011bHoffman et al , 2019aHoffman et al , 2019b, bivalves (Sanders & Allen 1973, 1977Allen & Turner 1974;Oliver & Allen 1980a, 1980bAllen & Morgan 1981;Allen & Hannah 1989;Warén 1989b;Allen et al 1995;Salas 1996;Salas & Gofas 1997;Dijkstra & Gofas 2004;Killeen & Turner 2009;Oliver 2012Oliver , 2013 and scaphopods (Steiner & Kabat 2004), but also the classical works reporting on the XIX th century deep-sea expeditions (Jeffreys 1878(Jeffreys -1885Locard 1897Locard -1898Dautzenberg & Fischer 1896, 1897. Nomenclature and classification were checked against the World Register of Marine Species (WoRMS editorial board 2021).…”

Section: Materials Studied and Samplingmentioning

confidence: 99%

“…Several studies on some NE Atlantic seamounts have revealed the molluscan biodiversity richness (Peñas & Rolán 1999;Gofas 2000Gofas , 2002Gofas , 2005Gofas , 2007Gofas & Beu 2002;Ávila & Malaquias 2003;Dijkstra & Gofas 2004;Krylova 2006;Hoffman et al 2010Hoffman et al , 2011aHoffman et al , 2011bHoffman et al , 2020aHoffman et al , 2020bHoffman et al , 2020cHoffman & Freiwald 2017;Peñas et al 2019;Gofas & Hoffman 2020). Though molluscs also are a main component of GB benthos, only scattered references on the GB molluscan fauna were included in the context of broader taxonomic works (Rolán Mosquera & Pérez-Gándaras 1981;Rolán Mosquera 1983;Bouchet & Warén 1993;Dijkstra & Gofas 2004;Gofas 2007;Hoffman et al 2019a;Engl et al 2021) or in papers focused on particular species (Warén & Bouchet 1990;Salvini-Plawen 2006;Gofas et al 2014a). Moreover, some mollusc species collected during SEAMOUNT 1 and INDEMARES BANGAL 0711 surveys were recorded by Serrano et al (2017aSerrano et al ( , 2017b) and de la Torriente et al (2014), but despite of the fairly abundant material obtained from the above mentioned surveys, an exhaustive list of GB molluscs has not been published yet.…”

Section: Introductionmentioning

confidence: 99%

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The Mollusca of Galicia Bank (NE Atlantic Ocean)

Gofas

Luque

Oliver³

et al. 2021

EJT

797

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An illustrated checklist of the Mollusca of Galicia Bank, a large and deep seamount off the NW Iberian Peninsula, is provided. The studied material was collected in 8 samples of Seamount 1 cruise (1987), 7 samples of ECOMARG 0709 (2009) and 36 samples of BANGAL 0711 (2011), between 615 and 1768 m. A total of 212 species are known to occur at the Galicia Bank (1 Monoplacophora, 7 Solenogastres, 3 Polyplacophora, 132 Gastropoda, 54 Bivalvia, 6 Scaphopoda, and 9 Cephalopoda), 21 of which from previous studies only. Four species are described as new, 34 species are first record in Spanish waters and another 20 species first record for the Northern Spanish waters. Over 7500 specimens, representing 104 species, were collected alive, and 87 species were represented by empty shells only. Only 53 species were detected in both Seamount 1 and BANGAL 0711; most of the species are rare and more species can be expected if exploration is continued. There is a marked difference in species composition between the summit platform (615‒1000 m) and the deeper part below 1500 m, with some genera (e.g., Colus and Limopsis) represented by alternative species. Endemism, if any, is very low and most of the species are widespread.

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