Ecology

Habitat

Depth range based on 211 specimens in 5 taxa.
Water temperature and chemistry ranges based on 122 samples.

Environmental ranges
  Depth range (m): 3 - 3506
  Temperature range (°C): -1.783 - 8.370
  Nitrate (umol/L): 4.166 - 44.002
  Salinity (PPS): 31.313 - 35.177
  Oxygen (ml/l): 0.766 - 8.265
  Phosphate (umol/l): 0.476 - 3.193
  Silicate (umol/l): 3.811 - 173.635

Graphical representation

Depth range (m): 3 - 3506

Temperature range (°C): -1.783 - 8.370

Nitrate (umol/L): 4.166 - 44.002

Salinity (PPS): 31.313 - 35.177

Oxygen (ml/l): 0.766 - 8.265

Phosphate (umol/l): 0.476 - 3.193

Silicate (umol/l): 3.811 - 173.635
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 85
Specimens with Sequences: 55
Specimens with Barcodes: 54
Species: 3
Species With Barcodes: 3
Public Records: 3
Public Species: 2
Public BINs: 2
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

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Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Gersemia

Gersemia is a genus of soft corals in the family Nephtheidae. Species in this genus are found in cold temperate and polar seas at depths ranging from 20 metres (66 ft) to over 2,000 metres (6,600 ft). The type species is Gersemia loricata.

Characteristics

Colonies of Gersemia are arborescent, growing erectly with one main stem. The polyps are most numerous at the branch tips and are unable to retract into the calyces. The walls of the stalk and branches are stiffened with sclerites which are often brightly coloured. Corals in this genus do not contain zooxanthellae, the microalgae symbionts found in some other corals.[2]

Species

The World Register of Marine Species includes the following species in the genus:[1]

References

  1. ^ a b Martinez, Olga (2010). "Gersemia; Marenzeller, 1877". World Register of Marine Species. http://www.marinespecies.org/aphia.php?p=taxdetails&id=146953. Retrieved 2012-01-24.
  2. ^ The nephtheid soft coral genus Gersemia Marenzeller, 1878, with the description of a new species from the northeast Pacific and a review of two additional species (Octocorallia: Alcyonacea)
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