Overview

Distribution

In Panama this species has been collected from Pico Feo Island (USNM E 47981; Centroid Latitude: 9.5467, Centroid Longitude: -78.9917, depth 5 m), and from within the Canal (USNM 33482 & USNM 12389; Centroid Latitude: 9.5333, Centroid Longitude: -79.9083, depth 62 m), in the Caribbean Sea.

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Source: The Echinoderms of Panama

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Physical Description

Diagnostic Description

References and links

Lütken, C. F. (1855). Bidrag til Kundskab om Slangestjernerne. I. Forelöbig Oversigt over Grönlandshavet Ophiurer. Videnskabelige Meddelelser fra den naturhistoriske Forening 1854, 6: 95-104.

Pawson, D. L., D. J. Vance, C. G. Messing, F. A. Solis-Marin, and C. L. Mah. (2009). Echinodermata of the Gulf of Mexico, Pp. 1177–1204 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College S.

World Ophiuroidea Database

LSID urn:lsid:marinespecies.org:taxname:244148
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Synonymised taxa

Ophiothrix suensoni Lütken, 1856
Ophiothrix suensonii Lütken, 1856

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Ecology

Habitat

Depth range based on 85 specimens in 1 taxon.
Water temperature and chemistry ranges based on 56 samples.

Environmental ranges
  Depth range (m): 5 - 302
  Temperature range (°C): 17.467 - 27.713
  Nitrate (umol/L): 0.341 - 12.139
  Salinity (PPS): 35.500 - 36.657
  Oxygen (ml/l): 3.608 - 5.023
  Phosphate (umol/l): 0.056 - 0.496
  Silicate (umol/l): 0.774 - 3.422

Graphical representation

Depth range (m): 5 - 302

Temperature range (°C): 17.467 - 27.713

Nitrate (umol/L): 0.341 - 12.139

Salinity (PPS): 35.500 - 36.657

Oxygen (ml/l): 3.608 - 5.023

Phosphate (umol/l): 0.056 - 0.496

Silicate (umol/l): 0.774 - 3.422
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Ophiothrix (Acanthophiothrix) suensoni

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Ophiothrix (Acanthophiothrix) suensoni

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 8
Specimens with Barcodes: 8
Species With Barcodes: 1
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Wikipedia

Ophiothrix suensoni

Ophiothrix suensoni, Suenson's brittle star or the sponge brittle star, is a species of marine invertebrate in the order Ophiurida. It is found in the Caribbean Sea and Gulf of Mexico. It is included in the subgenus Acanthophiothrix making its full scientific name Ophiothrix (Acanthophiothrix) suensoni.[1]

Contents

Description

Ophiothrix suensoni has a small central disc which is clearly demarcated from the five long thin arms. The arms can be up to 12 centimetres (4.7 in) long and the disc 2 centimetres (0.79 in) in diameter. The aboral (upper) surface of the disc is covered with scales which are ornamented with long spines. The arms are cylindrical in cross section and the surface of the lateral scales bear long, sharp, transparent spines. There is a purple, deep red or black stripe running the length of the aboral surface of each arm. The colour of this brittle star is variable, being pale mauve, pink, yellow or red, and often the arms are a different hue from the disc.[2][3][4]

Distribution and habitat

Ophiothrix suensoni is a common species throughout the Caribbean Sea and Gulf of Mexico from Bermuda and Florida south to Venezuela and Brazil. It is found at depths ranging from 3 to 450 metres (9.8 to 1,480 ft). It is always associated with sponges such as the red tree sponge (Haliclona compressa), soft corals or gorgonians.[4]

Biology

Ophiothrix suensoni is a detritivore and suspension feeder. It hides during the day and emerges at night to feed. It climbs to a high point on its host sponge or sea rod and extends some of its arms to catch plankton and suspended particles floating past.[4] It also feeds on the organic film that is found on the surface of its host. [5]

Ophiothrix suensoni is dioecious. Breeding takes place all year round but peaks in the late summer and autumn. The males have larger gonads than the females perhaps in order to increase the concentration of sperm in the vicinity of females as they do not synchronize their spawning.[6]

References

  1. ^ a b Stöhr, Sabine (2010). "Ophiothrix (Acanthophiothrix) suensoni Lütken, 1856". World Register of Marine Species. http://www.marinespecies.org/aphia.php?p=taxdetails&id=244148. Retrieved 2012-09-30.
  2. ^ Walls, Jerry G. (1982). Encyclopedia of Marine Invertebrates. TFH Publications. pp. 684–689. ISBN 0-86622-141-7. 
  3. ^ "Suenson's brittle star (Ophiothrix suensonii)". Interactive Guide to Caribbean Diving. Marine Species Identification Portal. http://species-identification.org/species.php?species_group=caribbean_diving_guide&id=390. Retrieved 2012-09-30.
  4. ^ a b c Colin, Patrick L. (1978). Marine Invertebrates and Plants of the Living Reef. T.F.H. Publications. p. 410. ISBN 0-86622-875-6. 
  5. ^ "Ophiothrix suensoni". Saltcorner. http://www.saltcorner.com/AquariumLibrary/browsespecies.php?CritterID=3079. Retrieved 2012-09-30.
  6. ^ Mladenov, Philip V. (1983). "Breeding Patterns of Three Species of Caribbean Brittle Stars (Echinodermata: Ophiuroidea)". Bulletin of Marine Science 23 (2): 363–372. 
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