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White Sea Urchin

Strongylocentrotus pallidus (Sars G. O. 1872)

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"Similar in general shape to Strongylocentrotus droebachiensis but with fewer spines." (Lambert, Austin 2007)

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Browne, Joy
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Trophic Strategy

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"Most studies indicate an omnivorous diet. On the Grand Banks off Newfoundland gut contents were single-celled benthic organsisms, such as foraminiferans and diatoms, and the remains of various animals such as barnacles, bryozoans, hydroids and amphipods." (Lambert, Austin 2007)

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Browne, Joy
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Look Alikes

provided by Invertebrates of the Salish Sea
How to Distinguish from Similar Species: S. droebachiensis is similar size and only a slightly darker green hue. However, S. droebachiensis has tube feet darker than the spines, and usually purple. The spines of S. droebachiensis have ridges with rounded surfaces and with periodic, somewhat fan-shaped sculpturings.
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Dave Cowles
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Invertebrates of the Salish Sea

Habitat

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Known to occur on both sandy/shell hash bottoms and in rocky areas.
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Invertebrates of the Salish Sea

Habitat

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Depth Range: Strictly subtidal, and usually deeper than 30 m
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Invertebrates of the Salish Sea

Comprehensive Description

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This pale urchin also usually has very light tube feet. Spines are whitish or pale yellowish-green. Spines have ridges with nearly flat surfaces and no obvious sculpturing. Strictly subtidal, usually deeper than 30 m.
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Dave Cowles
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Invertebrates of the Salish Sea

Comprehensive Description

provided by Invertebrates of the Salish Sea
Biology/Natural History: Deep-living. May harbor the intestinal rhabdocoel flatworm Syndisyrinx franciscanus. We find this species on sandy/shell hash bottoms in the San Juan Channel at about 100-120 m depth.
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Rosario Beach Marine Laboratory
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Dave Cowles
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Invertebrates of the Salish Sea

Distribution

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Geographical Range: . Probably pan-Arctic. This and S. droebachiensis are the only species of urchin in the Puget Sound area that are also found in the NW Pacific off Russia.
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Rosario Beach Marine Laboratory
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Dave Cowles
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Invertebrates of the Salish Sea

Strongylocentrotus pallidus

provided by wikipedia EN

Strongylocentrotus pallidus or Pale sea urchin is a species of sea urchin found in rocky areas in Norway, off Russia from the Barents Sea down to the central part of the Sea of Japan.[1]

References

  1. ^ "WoRMS - Strongylocentrotus pallidus (Sars G.O., 1872)". World Register of Marine Species. 2019-07-02. Retrieved 2019-07-02.

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Strongylocentrotus pallidus: Brief Summary

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Strongylocentrotus pallidus or Pale sea urchin is a species of sea urchin found in rocky areas in Norway, off Russia from the Barents Sea down to the central part of the Sea of Japan.

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Breeding

provided by World Register of Marine Species
Echinopluteus larva. February to May

Reference

7. Blue Planet Biomes (May, 2009) http://www.blueplanetbiomes.org/andean_condor.htm

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WoRMS Editorial Board
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Cibran Camba Reu [email]

Distribution

provided by World Register of Marine Species
southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern Bradelle valley); South slope of Anticosti Island

Reference

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]

Distribution

provided by World Register of Marine Species
From low intertidal to more than 200 m depth, on shell or gravel grounds, S. pallidus tends to live within the gravel whereas S. droebachiensis remains on the surface; Orkeny and Shetland

Reference

7. Blue Planet Biomes (May, 2009) http://www.blueplanetbiomes.org/andean_condor.htm

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WoRMS Editorial Board
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Cibran Camba Reu [email]

Habitat

provided by World Register of Marine Species
circalittoral of the Gulf and estuary

Reference

North-West Atlantic Ocean species (NWARMS)

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WoRMS Editorial Board
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Kennedy, Mary [email]

Status

provided by World Register of Marine Species
Mortensen (1943: p. 200) considered Toxopneustes pallidus G.O. Sars, 1871 as a junior subjective synonym of Strongylocentrotus droebachiensis (O.F. Müller, 1776).

Reference

6. CITES (April, 2003) http://www.cites.org

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Andreas Kroh [email]