Cape Shark

Squalus acanthias Linnaeus 1758

2015 California Academy of Sciences cc-by-nc-sa-3.0

Squalus acanthias (Cape Shark) is a species of modern sharks in the family dogfish sharks. They are listed as of special concern by COSEWIC. They are native to Atlantic Ocean, Arctic Ocean, and Pacific Ocean. They are solitary carnivores. Individuals can grow to 160 cm. Reproduction is ovoviviparous and iteroparous. They rely on swimming to move around.

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://www.marineregions.org/mrgid/1902

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URI: http://www.marineregions.org/mrgid/1906

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URI: http://www.marineregions.org/mrgid/1903

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URI: http://www.wikidata.org/entity/Q81875
Definition: organism that eats mostly or exclusively animal tissue

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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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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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URI: http://purl.obolibrary.org/obo/GO_0036268
Definition: Self-propelled movement of an organism from one location to another through water, often by means of active fin movement.

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EOL has data for 51 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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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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100 cm
body shape
- URI: http://eol.org/schema/terms/BodyShape
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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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ecomorphological guild
- URI: http://eol.org/schema/terms/EcomorphologicalGuild
- Definition: organisms that share certain morphological traits due to adaptation to similar environments and ecological roles
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nectonic
- URI: http://www.marinespecies.org/traits/Nekton
- Definition: Active swimming organisms that live in the water column and are able to move independently of the water mass (adapted from Lincoln et al., 1998).
- Attribution: http://www.marinespecies.org/traits/wiki/Traits:Nekton
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first appearance
- URI: http://eol.org/schema/terms/FossilFirst
- Definition: The first appearance of this taxon in the fossil record.
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11.62 million years ago
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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Black Sea
- URI: http://www.marineregions.org/mrgid/3319
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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
native range includes
- URI: http://eol.org/schema/terms/NativeRange
- Definition: Lists jurisdictions in which a given organism is a member of the undisturbed fauna or flora.
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Atlantic Ocean
- URI: http://www.marineregions.org/mrgid/1902
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number of fossil occurrences
- URI: http://eol.org/schema/terms/fossilOccPBDB
- Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
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2
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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type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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Harvard University, Museum of Comparative Zoology
- URI: http://biocol.org/urn:lsid:biocol.org:col:33791
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used for
- URI: http://eol.org/schema/terms/Uses
- Definition: The uses of the organism or products derived from the organism.
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food
- URI: https://www.wikidata.org/entity/Q2095
- Definition: any substance consumed to provide nutritional support for the body
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Known occurrences, collected specimens and observations of Cape Shark. View this species on GBIF

2015 California Academy of Sciences cc-by-nc-sa-3.0