Overview

Distribution

In Panama this species has been collected from Panama Bay, Gulf of Panama (USNM 38869, Centroid Latitude: 8.27500, Centroid Longitude: -79.62917), eastern Pacific.

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Source: The Echinoderms of Panama

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Physical Description

Diagnostic Description

References and links

Gray, J. E. (1840). A synopsis of the genera and species of the class Hypostoma (Asterias Linnaeus). Annals of the Magazine of Natural History 6: 175-184; 275-290.

Barcode of Life

World Asteroidea Database

LSID urn:lsid:marinespecies.org:taxname:292851
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Ecology

Habitat

Depth range based on 21 specimens in 3 taxa.
Water temperature and chemistry ranges based on 8 samples.

Environmental ranges
  Depth range (m): 11 - 160
  Temperature range (°C): 14.085 - 23.430
  Nitrate (umol/L): 1.356 - 26.627
  Salinity (PPS): 34.943 - 35.202
  Oxygen (ml/l): 0.559 - 4.956
  Phosphate (umol/l): 0.568 - 2.198
  Silicate (umol/l): 5.633 - 22.623

Graphical representation

Depth range (m): 11 - 160

Temperature range (°C): 14.085 - 23.430

Nitrate (umol/L): 1.356 - 26.627

Salinity (PPS): 34.943 - 35.202

Oxygen (ml/l): 0.559 - 4.956

Phosphate (umol/l): 0.568 - 2.198

Silicate (umol/l): 5.633 - 22.623
 
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: Astropecten armatus

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


No available public DNA sequences.

Download FASTA File
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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Astropecten armatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 2
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Astropecten armatus

Astropecten armatus, the spiny sand star or Estrella de Arena, is a sea star in the family Astropectinidae. It is found on sandy or gravelly areas of the seabed off the Pacific coast of Mexico.

Description[edit]

Astropecten armatus is a dorsally flattened starfish, which grows to a diameter of about 17 cm (7 in). The disc is quite small and the five arms are slender and pointed, slightly turned up at the tips. The madreporite is very close to the edge of the disc. The central surface of both disc and arms is smooth. The arms have conspicuous marginal plates with a fringe of upward pointing spines and another of downward pointing ones. Further rows of spines line the ambulacral grooves. The tube feet are pointed and do not have suckers. The colour of the aboral (upper) surface is yellowish brown, dull pink or grey and the starfish blends in well with the colour of the substrate. The oral (under) surface is pale yellow or ivory.[2]

Distribution and habitat[edit]

Astropecten armatus is found in the eastern Pacific Ocean on sandy or soft gravel seabeds, often semi-submerged in the sediment. Its range extends from Manzanillo, Colima, Mexico to Baja California. Off the western coast of Mexico, it is the most abundant starfish on suitable substrates, at all depths between 5 and 115 metres (16 and 377 ft).[2]

Biology[edit]

Astropecten armatus is an agile starfish. It can "glide" across the surface of the sand with its mobile tube feet. If turned upside down it can right itself with a flip and if several are stacked on top of each other, they will quickly disperse.[3] It is a predator and primarily feeds on the olive snail (Olivella biplicata). It can consume these at the rate of one each day but, when they are less plentiful, it will turn to other food sources and eat sand dollars and sea pansies (Renilla reniformis) and scavenge on dead fish.[3]

References[edit]

  1. ^ Mah, Christopher (2012). "Astropecten armatus Gray, 1840". In C. L. Mah. World Asteroidea database. World Register of Marine Species. Retrieved 2013-02-15. 
  2. ^ a b Caso, Maria Elena. "Género Astropecten Gray, 1840". Estudio morfológico, taxonómico, ecológico y distribución geográphica de los asteroides colectados durante las campañas oceanográficas Cortés 1, 2, 3 (in Spanish). Instituto de Ciencas del Mar y Limnologia. Retrieved 2013-02-15. 
  3. ^ a b Gene Kira. "Spiny Sand Star". Mexfish.com. Retrieved 2013-02-15. 
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