Arrow Worms

Chaetognatha

Chaetognatha (Arrow Worms) is a phylum of animals. There are 132 species of Arrow Worms, in 26 genera and 9 families. This phylum has been around since the cambrian period. They are carnivores. They rely on dorso-ventral undulatory swimming to move around.

URI: http://resource.geosciml.org/classifier/ics/ischart/Cambrian
Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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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: https://eol.org/schema/terms/dorsoventral_undulatory
Definition: swimming by generating thrust using dorso-ventral undulations of the body.

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EOL has data for 22 attributes, including:

known marine species
- URI: http://eol.org/schema/terms/DescribedAcceptedSpecies
- Definition: number of currently described and taxonomically accepted marine species in this clade (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)
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129
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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cambrian period
- URI: http://resource.geosciml.org/classifier/ics/ischart/Cambrian
- Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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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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cosmopolitan
- URI: http://eol.org/schema/terms/Cosmopolitan
- Attribution: https://en.wikipedia.org/wiki/Cosmopolitan_distribution
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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
- URI: http://purl.obolibrary.org/obo/ENVO_00000447
- Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
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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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dorso-ventral undulatory swimming
- URI: https://eol.org/schema/terms/dorsoventral_undulatory
- Definition: swimming by generating thrust using dorso-ventral undulations of the body.
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motility
- URI: http://www.wikidata.org/entity/Q33596
- Definition: ability to move spontaneously and actively, consuming energy in the process
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actively mobile
- URI: http://eol.org/schema/terms/activelyMobile
- Definition: uses self-propelled locomotion to change location on a regular basis
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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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255
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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predator
- URI: https://www.wikidata.org/entity/Q170430
- Definition: Organism that obtains food by hunting
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trophic level
- URI: http://www.wikidata.org/entity/Q1053008
- Definition: position of an organism in a food web. May be described verbally with descriptors including primary producer, herbivore or carnivore. If described numerically, 1 indicates a primary producer, 2 a herbivore, and so on up the food web.
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carnivore
- URI: http://www.wikidata.org/entity/Q81875
- Definition: organism that eats mostly or exclusively animal tissue
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undescribed marine species present in museum collections
- URI: http://eol.org/schema/terms/UndescribedSpeciesInMuseumCollections
- Definition: "marine species in this clade which are currently represented in specimen collections (estimate) (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)"
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41434

Arrow Worm Habitats

The environments in which many arrow worms species are known to live. Select an environment to see its arrow worms species checklist.

arrow worms Habitats

The environments in which many arrow worms species are known to live. Select an environment to see its arrow worms species checklist.

arrow worms includes 1 child:

Sagittoidea