Spur Dogfish

Squalus acanthias Linnaeus 1758

DZMB. Thomas Knebelsberger. Year: 2011. cc-by-nc-sa-3.0

Squalus acanthias (Spur Dogfish) is a species of modern sharks in the family dogfish sharks. They are listed as of special concern by COSEWIC. They are associated with freshwater habitat. Individuals are known to live for 75 years and can grow to 160 cm. Reproduction is ovoviviparous and iteroparous.

URI: https://eol.org/schema/terms/special_concern
Definition: may become threatened or endangered because of a combination of biological characteristics and identified threats
Source: https://species-registry.canada.ca/index-en.html#/species

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URI: http://purl.obolibrary.org/obo/ENVO_00000873
Definition: A biome that applies to the freshwater realm.

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URI: http://www.marinespecies.org/traits/Ovoviviparous
Definition: Fully formed eggs are retained and hatched inside the maternal body and are released as live offspring (Lincoln et al., 1998). No nutrition is derived from the mother
Attribution: Lincoln, R., Boxshall, G. & Clark, P., 1998. A dictionary of ecology, evolution and systematics (2nd ed.). Cambridge, Cambridge University of Press.

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URI: http://polytraits.lifewatchgreece.eu/terms/STRAT_ITER
Definition: Breeding several times per lifetime.

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EOL has data for 35 attributes, including:

parasitized by
- URI: http://purl.obolibrary.org/obo/RO_0002445
- Comment: Auto-added during harvest #37. A human needs to edit this.
- Attribution: Global Biotic Interactions
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Squalus acanthias Linnaeus 1758 (Spur dogfish)
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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90 cm
body size
- URI: http://purl.obolibrary.org/obo/OBA_VT0100005
- Definition: The size of a multicellular organism
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160 cm
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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North Pacific
- URI: http://www.marineregions.org/mrgid/1908
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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 reef
- URI: http://purl.obolibrary.org/obo/ENVO_01000143
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habitat includes
- URI: http://eol.org/schema/terms/Habitat
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temperate
- URI: http://purl.obolibrary.org/obo/ENVO_01000206
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has ectoparasite
- URI: http://purl.obolibrary.org/obo/RO_0002633
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Squalus acanthias Linnaeus 1758 (Spur dogfish)
inter-birth interval
- URI: http://eol.org/schema/terms/InterBirthInterval
- Definition: The length of time between successive births of a female.
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730 days
life span
- URI: http://purl.obolibrary.org/obo/PATO_0000050
- Definition: A time quality inhering in a bearer by virtue of the bearer's expected maximum age.
- Comment: Ontology Description: http://obofoundry.org/wiki/index.php/PATO:Main_Page Ontology Source: http://purl.obolibrary.org/obo/pato.owl
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75 years
social system
- URI: http://eol.org/schema/terms/SocialSystem
- Definition: Description of the relationships among individuals within a population of organisms, including reproductive relationships (mating system), relationships within each sex, adult – young interactions, helpers and cooperation (group living).
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solitary
- URI: http://eol.org/schema/terms/solitary
- Definition: Solitary animals are those that spend a majority of their lives without others of their species, with possible exceptions for mating and raising their young. Antonyms for a solitary animal include a social animal or a colonial animal.
- Attribution: https://www.definitions.net/definition/solitary+animal
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water temperature
- URI: http://eol.org/schema/terms/SeawaterTemperature
- Definition: Temperature of the water at a location where this organism has been observed or collected.
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10.469 degrees celsius
weight
- URI: http://purl.obolibrary.org/obo/PATO_0000128
- Definition: A physical quality inhering in a bearer that has mass near a gravitational body.
- Comment: Ontology Description: http://bioportal.bioontology.org/ontologies/PATO Ontology Source: http://purl.obolibrary.org/obo/pato.owl
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5005 g

Known occurrences, collected specimens and observations of Spur dogfish. View this species on GBIF

DZMB. Thomas Knebelsberger. Year: 2011. cc-by-nc-sa-3.0