Estuary Ragworm

Hediste diversicolor (O. F. Müller 1776)

Naoise Nolan cc-by-nc-4.0

Hediste diversicolor (Estuary Ragworm) is a species of segmented worms in the family ragworms. They are downward conveyors. They are omnivores. Individuals can grow to 120 mm. They have asexual reproduction and parental care. They have no sexual metamorphosis. Reproduction is iteroparous, gonochoristic, and semelparous. They rely on drag powered swimming to move around.

URI: http://polytraits.lifewatchgreece.eu/terms/RW_DC
Definition: Downward conveyors exhibit a feeding strategy opposite to that of upward conveyors. Vertically oriented head-up feeders actively select and ingest particles at the surface and egest these non-locally as faeces in deeper sediment strata

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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://purl.obolibrary.org/obo/GO_0019954
Definition: Capable of the biological process in which new individuals are produced by either a single cell or a group of cells, in the absence of any sexual process.

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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_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: 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: 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 59 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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120 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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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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burrow builder
- URI: https://eol.org/schema/terms/burrow_builder
- Definition: an animal that excavates holes or tunnels into soil or benthic sediment to create a space suitable for habitation, temporary refuge, or as a byproduct of locomotion. Inhabited burrows function as a refuge, protecting the inhabitants from predation and environmental extremes. They provide physical support for the digging and feeding activities of the burrow inhabitants. The harsh chemical environment deep in aquatic burrows must be counteracted by active or passive irrigation of burrow water.
- Attribution: https://en.wikipedia.org/wiki/Burrow Macrofaunal Burrows and Irrigation in Marine Sediment: Microbiological and Biogeochemical Interactions. Available from: https://www.researchgate.net/publication/265483886_Macrofaunal_Burrows_and_Irrigation_in_Marine_Sediment_Microbiological_and_Biogeochemical_Interactions [accessed Feb 26 2020].
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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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egg diameter
- URI: http://eol.org/schema/terms/EggDiameter
- Definition: Diameter of the egg life stage of this organism. An egg is an organic vessel in which an embryo first begins to develop. In most birds, reptiles, insects, molluscs, fish, and monotremes, it is the zygote, resulting from fertilization of the ovum, which is expelled from the body and permitted to develop outside the body until the developing embryo can survive on its own.
- Attribution: http://en.wikipedia.org/wiki/Egg_(biology)
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220 µm
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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Europe
- URI: http://www.geonames.org/6255148
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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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scavenger
- URI: http://polytraits.lifewatchgreece.eu/terms/FEED_S
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Known occurrences, collected specimens and observations of estuary ragworm. View this species on GBIF

Naoise Nolan cc-by-nc-4.0