Overview

Comprehensive Description

Description

Ammotrypane nematoides Ehlers, 1913

 

Ammotrypane nematoides Ehlers, 1913, pp.524-525. 65º32’S, 85 º30’E, in 2725 m.

 

Diagnosis: Threadlike, yellowish white, glistening, resembling a nematode. Length 30 mm; width 1 mm; segments number 30. Prostomium bluntly conical, about as long as first 2 segments, terminates anteriorly in a palpode. Body lacks segmental furrows. Each side with a longitudinal furrow, along which small parapodia emerge. Branchiae absent. Pygidium with a postanal appendage, appearing annulate in transmitted light, about as long as last 2 segments.

 

Distribution: Antarctica, eastern sector; abyssal.”
(Hartman, 1966)

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© National Museum of Natural History, Smithsonian Institution

Source: Antarctic Invertebrates Website (NMNH)

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Ecology

Habitat

Depth range based on 6 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 412 - 4758
  Temperature range (°C): -1.810 - -0.103
  Nitrate (umol/L): 27.986 - 33.484
  Salinity (PPS): 34.539 - 34.687
  Oxygen (ml/l): 5.203 - 7.134
  Phosphate (umol/l): 2.099 - 2.266
  Silicate (umol/l): 66.945 - 119.548

Graphical representation

Depth range (m): 412 - 4758

Temperature range (°C): -1.810 - -0.103

Nitrate (umol/L): 27.986 - 33.484

Salinity (PPS): 34.539 - 34.687

Oxygen (ml/l): 5.203 - 7.134

Phosphate (umol/l): 2.099 - 2.266

Silicate (umol/l): 66.945 - 119.548
 
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