Arafura Skate

Okamejei arafurensis Last & Gledhill 2008

Okamejei arafurensis (Arafura Skate) is a species of Rajiformes in the family skates. Individuals can grow to 49.5 cm. They rely on pectoral fin swimming to move around.

URI: https://eol.org/schema/terms/pectoral_fins
Definition: swimming mainly using undulations of the pectoral fins

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EOL has data for 17 attributes, including:

Body symmetry
- URI: http://eol.org/schema/terms/body_symmetry
- Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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bilaterally symmetric
- URI: http://purl.obolibrary.org/obo/PATO_0001324
- Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
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auditory system
- URI: http://purl.obolibrary.org/obo/UBERON_0016490
- Definition: the sensory system for the sense of hearing
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otoliths
- URI: https://www.wikidata.org/entity/Q591800
- Definition: Inner-ear structure in vertebrates which detects acceleration and may detect acoustic signals
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body length
- URI: http://purl.obolibrary.org/obo/CMO_0000013
- Definition: A measurement of the longest dimension of a body, typically between two distinct ends of the body.
- Attribution: [database_cross_reference: Dorland:Dorlands_Illustrated_Medical_Dictionary--31st_Ed] [database_cross_reference: ISBN:978-1416049982]
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40.7 cm
cellularity
- URI: http://purl.obolibrary.org/obo/PATO_0001992
- Definition: An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]
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multicellular
- URI: http://purl.obolibrary.org/obo/PATO_0001993
- Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]
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geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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Indian Ocean
- URI: http://www.marineregions.org/mrgid/1904
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habitat
- URI: http://purl.obolibrary.org/obo/RO_0002303
- Definition: x has habitat y if: x is an organism, y is a habitat, and y can sustain and allow the growth of a population of x
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marine
- URI: http://purl.obolibrary.org/obo/ENVO_00000447
- Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
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habitat
- URI: http://rs.tdwg.org/dwc/terms/habitat
- Definition: A category or description of the habitat in which the Event occurred.
- Comment: Example: "oak savanna", "pre-cordilleran steppe"
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marine
- URI: http://purl.obolibrary.org/obo/ENVO_00000569
- Definition: A habitat that is in or on a sea or ocean containing high concentrations of dissolved salts and other total dissolved solids (typically >35 grams dissolved salts per litre).
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locomotion
- URI: http://purl.obolibrary.org/obo/GO_0040011
- Definition: Self-propelled movement of a cell or organism from one location to another.
- Attribution: [database_cross_reference: GOC:dgh]
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pectoral fin swimming
- URI: https://eol.org/schema/terms/pectoral_fins
- Definition: swimming mainly using undulations of the pectoral fins
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mineralized tissue contains
- URI: http://purl.obolibrary.org/obo/UBERON_4000013
- Definition: Component found in mineralized tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized)
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hydroxylapatite
- URI: http://purl.obolibrary.org/obo/CHEBI_52255
- Definition: A phosphate mineral with the formula Ca5(PO4)3(OH).
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population trend
- URI: http://eol.org/schema/terms/population_trend
- Definition: i.e., increasing, decreasing, stable, or unknown
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Unknown
sensory system
- URI: http://purl.obolibrary.org/obo/UBERON_0001032
- Definition: Anatomical system that overlaps the nervous system and is responsible for receiving and processing sensory information.
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electroreception
- URI: https://www.wikidata.org/entity/Q1326528
- Definition: detection and measurement of weak electric fields, via specialized sense organs and brain structures that process this information
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Total length
- URI: http://purl.org/obo/owlATOL_0001660
- Definition: length from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body
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40.7 cm

Known occurrences, collected specimens and observations of Arafura skate. View this species on GBIF