Marine Ragworm

Perinereis cultrifera (Grube 1840)

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Perinereis cultrifera (Marine Ragworm) is a species of segmented worms in the family ragworms. They are open-ended ventilators. They are omnivores. Individuals can grow to 250 mm. They have parental care. They have no sexual metamorphosis. Reproduction is semelparous, iteroparous, and gonochoristic. They rely on drag powered swimming to move around.

URI: http://polytraits.lifewatchgreece.eu/terms/RW_OEV
Definition: In open-ended ventilation the burrows are U-shaped and can be flushed easily from one end to the other

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URI: https://www.wikidata.org/entity/Q164509
Comment: Auto-added during harvest #1048. A human needs to edit this.
Attribution: Crustacean body sizes

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URI: http://polytraits.lifewatchgreece.eu/terms/BP_YES
Definition: this term applies to a species that provides any parental care to its offspring

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URI: http://eol.org/schema/terms/no
Definition: This statement is false; the answer to this question is no.

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URI: http://polytraits.lifewatchgreece.eu/terms/STRAT_SEM
Definition: Organisms that have only one brood during the life time and then the parent usually dies.

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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/HAO_0000048
Definition: multi-cellular organism that has separate male and female sexes. (dioecious)

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URI: https://eol.org/schema/terms/drag_based_swimming
Definition: Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.

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EOL has data for 58 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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250 mm
body shape
- URI: http://eol.org/schema/terms/BodyShape
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vermiform
- URI: https://www.wikidata.org/entity/Q7921571
- Definition: shaped like a worm
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ecosystem engineering
- URI: http://polytraits.lifewatchgreece.eu/terms/RW
- Definition: directly or indirectly modulating the availability of resources to other species, by causing physical state changes in biotic or abiotic materials; modifying, maintaining and/or creating habitats
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open-ended ventilator
- URI: http://polytraits.lifewatchgreece.eu/terms/RW_OEV
- Definition: In open-ended ventilation the burrows are U-shaped and can be flushed easily from one end to the other
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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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South Africa
- URI: http://www.geonames.org/953987
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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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crawler
- URI: http://polytraits.lifewatchgreece.eu/terms/MOB_CRAWL
- Definition: An organism that moves along via movements of its legs, appendages (e.g. parapodia and chaetae) or muscles
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reproduction
- URI: http://purl.obolibrary.org/obo/GO_0000003
- Definition: The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms
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gonochoristic
- URI: http://purl.obolibrary.org/obo/HAO_0000048
- Definition: multi-cellular organism that has separate male and female sexes. (dioecious)
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sexual metamorphosis
- URI: http://polytraits.lifewatchgreece.eu/terms/SM
- Definition: Conspicuous change in the organism's body structure prior to reproduction
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yes
- URI: http://eol.org/schema/terms/yes
- Definition: This statement is true; the answer to this question is yes.
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survival temperature
- URI: http://polytraits.lifewatchgreece.eu/terms/TEMP
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tropical waters (hot)
- URI: http://polytraits.lifewatchgreece.eu/terms/TEMP_HOT
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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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omnivore
- URI: http://polytraits.lifewatchgreece.eu/terms/FEED_O
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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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f2ec825d-145a-42fd-9bfe-a411a557bc47
wet body mass
- URI: http://eol.org/schema/terms/bodyMassWet
- Definition: Mass of one individual of this taxon, living or fresh, without desiccation
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0.476 g

Known occurrences, collected specimens and observations of marine ragworm. View this species on GBIF

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