Distribution of nine cold-water coral species (Scleractinia and Gorgonacea) in the cold temperate North Atlantic: effects of bathymetry and hydrography

Buhl‐Mortensen, Lene; Ólafsdóttir, Steinunn H.; Buhl-Mortensen, Pål; Burgos, Julian M.; Ragnarsson, Stefán Á.

doi:10.1007/s10750-014-2116-x

Cited by 67 publications

(73 citation statements)

References 37 publications

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“…Primnoa resedaeformis and P. arborea are the most abundant and widely distributed large gorgonians in the North Atlantic [25,30,33,64,70], where they can form stands or "coral gardens" (Figure 3). They are among the largest cold-water gorgonian corals, reaching a height of 50-250 cm.…”

Section: Habitat Provisionmentioning

confidence: 99%

Cold Temperate Coral Habitats

Buhl‐Mortensen¹,

Buhl-Mortensen²

2018

Corals in a Changing World

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Cold-water coral habitats are constituted by a great variety of anthozoan taxa, with reefs and gardens being homes for numerous invertebrates and fish species. In the cold temperate North Atlantic, some coral habitats such as Lophelia pertusa reefs, and Primnoa/Paragorgia dominated coral gardens occur on both sides of the Atlantic over a wide latitudinal range. Other habitats, as some dominated by species of Isididae and Chrysogorgidae seem to have a more local/regional distribution. In this chapter, we describe the habitat characteristics of cold-water coral reefs, soft and hard-bottom coral gardens, and sea pen meadows with their rich associated fauna illustrated with numerous photos.

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Section: Habitat Provisionmentioning

confidence: 99%

Cold Temperate Coral Habitats

Buhl‐Mortensen¹,

Buhl-Mortensen²

2018

Corals in a Changing World

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“…Cnidaria Halecium labrosum and Lafoea dumosa are known from West Greenland (Schuchert 2001). The large octocorals P. resedaeformis and P. arborea are both known from the area (Madsen 1944;Jørgensen et al 2013;Tendal et al 2013;Buhl-Mortensen et al 2014). While P. resedaeformis has been known for many years from West Greenland fjords (Jungersen 1915), this is not the case with P. arborea.…”

Section: Annotated Species List Of Associated Faunamentioning

confidence: 99%

“…It has been found also in the Indian and the Pacific Oceans although the records there are few in number (Freiwald et al 2004;Buhl-Mortensen et al 2014). In the northern Atlantic, L. pertusa has been recorded numerous times in two major areas.…”

Section: Introductionmentioning

confidence: 99%

“…In the northern Atlantic, L. pertusa has been recorded numerous times in two major areas. One stretches from northern Norway along the continental slope southwards to off western Africa and westwards along the Scotland-Greenland Ridge over the Faroes to southern Iceland and the mid-Atlantic Ridge (Copley et al 1996;ICES 2008;Buhl-Mortensen et al 2014). The other stretches along the American continental slope from Nova Scotia to Florida and into the Gulf of Mexico and the Caribbean Sea (ICES 2008).…”

Section: Introductionmentioning

confidence: 99%

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Water mass characteristics and associated fauna of a recently discovered Lophelia pertusa (Scleractinia: Anthozoa) reef in Greenlandic waters

et al. 2016

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The first living sample of Lophelia pertusa from Greenlandic waters was inadvertently collected at 60.3675°, -48.45528°, entangled together with other corals to a seawater sampler and property sensor (CTD) package. We collected in situ photographs taken at two sites in the same area in order to determine whether a reef was present. We identified reef-like structures formed by living and dead L. pertusa at 886-932 m depth on a steep slope. We assembled and analyzed hydrographic data to characterize the reef environment in order to facilitate future localization of other reefs and predictions of the impacts of climate change. We showed that the reef was located in a layer of modified Atlantic Water of relatively stable bottom temperature (4.1-5.0°C) and salinity (34.90-34.98) with density slightly higher (27.62-27.71 kg m -3 ) than that reported for the occurrence of reefs in the northeast Atlantic, and in an area with exceptionally and persistently high currents of [15 cm s -1 at 1000 m. The intermediatedepth salinity maximum was found in the depth range where the corals were found. We discovered signals of consistent vertical and horizontal transports at 700-900 m over the reef area. Although this area is not directly influenced by intermediate and deep convection in the Labrador Sea, the seasonal evolution of near-bottom temperature, salinity and density for the 700-900 m depth range revealed strong seasonal patterns with both temperature and salinity reducing to their annual minimal values at the end of March and staying low for 1 month with an indication of a second minimum in June, 3 months later. The occurrence and temporal extent of these minima likely arose through a combination of local convection from the surface and advection of cooled and freshened waters at depth from the Irminger Sea. A diversified associated fauna was described; the short list of species compiled from our limited sample comprised species common in the area, as well as rare species, species new to Greenland, and species new to science.

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“…The study area is characterised by a steep temperature gradient (< -0.9 °C to 14 °C) as well as several shallow (<800 m) submarine ridges which define distinct deep marine basins and host cold-water coral reefs along their slopes (Buhl-Mortensen et al 2015a, b). Previous studies of benthic invertebrates in the North Atlantic and Nordic Seas including the BIOICE (Benthic Invertebrates of Icelandic waters: 1991-2004) and IceAGE (since 2011: see Brix et al 2014a) projects have shown that within the abundant peracarid crustacean fauna, more than 50% of the species are new to science (Blazewicz-Paszkowycz et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Amphipod family distributions around Iceland

Brix¹,

Lörz²,

Jażdżewska³

et al. 2018

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Amphipod crustaceans were collected at all 55 stations sampled with an epibenthic sledge during two IceAGE expeditions (Icelandic marine Animals: Genetics and Ecology) in 2011 and 2013. In total, 34 amphipod families and three superfamilies were recorded in the samples. Distribution maps are presented for each taxon along with a summary of the regional taxonomy for the group. Statistical analyses based on presence/absence data revealed a pattern of family distributions that correlated with sampling depth. Clustering according to the geographic location of the stations (northernmost North Atlantic Sea and Arctic Ocean) can also be observed. IceAGE data for the Amphilochidae and Oedicerotidae were analysed on species level; in case of the Amphilochidae they were compared to the findings from a previous Icelandic benthic survey, BIOICE (Benthic Invertebrates of Icelandic waters), which also identified a high abundance of amphipod fauna.

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Distribution of nine cold-water coral species (Scleractinia and Gorgonacea) in the cold temperate North Atlantic: effects of bathymetry and hydrography

Cited by 67 publications

References 37 publications

Cold Temperate Coral Habitats

Cold Temperate Coral Habitats

Water mass characteristics and associated fauna of a recently discovered Lophelia pertusa (Scleractinia: Anthozoa) reef in Greenlandic waters

Amphipod family distributions around Iceland

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