Pacific Angel Shark

Squatina californica Ayres 1859

Diane Etchison cc-by-nc-4.0

Squatina californica (Pacific Angel Shark) is a species of modern sharks in the family angel sharks. They are listed as near threatened by IUCN. They are native to Pacific Ocean. They are solitary, nocturnal carnivores. Individuals can grow to 152 cm. They have parental care (female provides care). They rely on swimming to move around.

URI: http://eol.org/schema/terms/nearThreatened
Definition: A taxon is Near Threatened when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a threatened category in the near future
Source: http://apiv3.iucnredlist.org/api/v3/taxonredirect/39328

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

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URI: https://www.wikidata.org/entity/Q81875
Definition: organism that eats mostly or exclusively animal tissue
Attribution: Crustacean body sizes

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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.wikidata.org/entity/Q309179
Definition: animal behavior characterized by activity during the night and sleeping during the day

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URI: http://eol.org/schema/terms/parentalCareFemale
Definition: the female feeds and nurtures offspring
Attribution: Richard M. Sibly, Christopher C. Witt, Natalie A. Wright, Chris Venditti, Walter Jetz, and James H. Brown. 2012. Energetics, lifestyle, and reproduction in birds. PNAS 109(27):10937-10941, doi:10.1073/pnas.1206512109

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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 46 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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152 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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diet includes
- URI: http://eol.org/schema/terms/Diet
- Definition: Information about the items eaten by this organism.
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fish
- URI: https://www.wikidata.org/entity/Q152
- Definition: vertebrate animal that lives in water and (typically) has gills
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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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Eastern Pacific
- URI: http://marineregions.org/mrgid/14288
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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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365 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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Pacific Ocean
- URI: http://www.marineregions.org/mrgid/1903
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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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Decreasing
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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trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
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piscivore
- URI: http://www.wikidata.org/entity/Q1420208
- Definition: carnivorous animal which eats primarily fish.
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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 Pacific Angel Shark. View this species on GBIF

Diane Etchison cc-by-nc-4.0