Overview

Comprehensive Description

Description

 Parastichops tremulus, like all sea cucumbers, has a cylindrical and very slightly flattened body with a tentacular mouth at one end and the anus at the other end. It can reach up to 50 cm in length and 10 cm in diameter. The tentacles are aranged in the shape of a mop are are usually around twenty in number. The underside has three rows of tube feet and is pale pink to white in colour. Large papillae are scattered on the upper side, which is bright red in colour with black spots. The skin is smooth and firm.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

©  The Marine Biological Association of the United Kingdom

Source: Marine Life Information Network

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Description

A large epifaunal sea cucumber which is normally found in deep water. Deep water specimens are normally bright red in colour but those encountered in shallow water have been white or mottled light grey. The dorsal surface is covered with spiky papillae and a ring of papillae surround the mouth. The spicules are elaborate tables. 30-50cm in length. In shallow water the only other large epifaunal sea cucumber with short tentacles is the dark-coloured Holothuria forskali.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

This poorly known species is only known from a few disjunct records in the Northeast Atlantic in the Faeroe Islands, Iceland, Ireland, Norway, Spain, United Kingdom of Great Britain and Northern Ireland.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Known in shallow water only from cliffs on Sanday, Canna and the head of Loch Boisdale, S. Uist; both W. Scotland.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found in shallow water in the Hebrides, otherwise in depths of more than 100 m, on mud, sand, gravel, stones or rocks, near the edge of the continental shelf, off West Ireland, around Shetland and in the northern North Sea.

Systems
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth range based on 14 specimens in 1 taxon.
Water temperature and chemistry ranges based on 14 samples.

Environmental ranges
  Depth range (m): 107 - 1579
  Temperature range (°C): 4.564 - 12.896
  Nitrate (umol/L): 8.636 - 18.831
  Salinity (PPS): 35.003 - 35.766
  Oxygen (ml/l): 3.755 - 6.170
  Phosphate (umol/l): 0.460 - 1.193
  Silicate (umol/l): 2.685 - 12.182

Graphical representation

Depth range (m): 107 - 1579

Temperature range (°C): 4.564 - 12.896

Nitrate (umol/L): 8.636 - 18.831

Salinity (PPS): 35.003 - 35.766

Oxygen (ml/l): 3.755 - 6.170

Phosphate (umol/l): 0.460 - 1.193

Silicate (umol/l): 2.685 - 12.182
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

 Parastichopus tremulus is a mobile benthic species usually found on rocks and silty cliffs, in sea lochs and sheltered harbours from depths over 20 m to more than 100 m.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

©  The Marine Biological Association of the United Kingdom

Source: Marine Life Information Network

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Rarely found in shallow water, known from two sheltered sites on steep silt covered cliffs and on silt covered rocks.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Evolution and Systematics

Evolution

Classification

Jensenius Madsen & Hansen 1994 were referring this species to Stichopus Brandt, 1835, because they thought that Parastichopus is a doubtful genus.
  • North East Atlantic Taxa
Creative Commons Attribution 3.0 (CC BY 3.0)

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Parastichopus tremulus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2013

Assessor/s
Samyn, Y.

Reviewer/s
Knapp, L., Polidoro, B., Carpenter, K.E. & Harwell, H.

Contributor/s

Justification

This species is only known from a few disjunct records within its range. There is little to no information available on the population status, habitat, ecology, major threats, or conservation measures occurring to this species. More research is needed in all of these areas. Therefore this species is listed as Data Deficient.

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

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
No population information is currently available for this species.

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
It is not known if there are any major threats to this species.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no known species specific conservation measures in place for this species. More research is needed on the population status, habitat, ecology, major threats, and conservation measures for this species.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!