Biology:Octopoteuthis deletron
| Octopoteuthis deletron | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Oegopsida |
| Family: | Octopoteuthidae |
| Genus: | Octopoteuthis |
| Species: | O. deletron
|
| Binomial name | |
| Octopoteuthis deletron Young, 1972[2]
| |
Octopoteuthis deletron is a species of squid in the genus Octopoteuthis of the family Octopoteuthidae. They belong to the pelagic squids of order Oegopsida. Found at depths of 400 to 800 m (1,300 to 2,600 ft) in the Pacific Ocean, they have been known to grow to 24 cm (9.4 in).
O. deletron has been found to break off its arms as a defense strategy. The squid digs hooks in one of its arms into a predator and jets away, leaving the arm in the predator's skin.[3]
The male O. deletron has a penis, which is unusual among squids. Males find it difficult to detect the sex of other individuals they encounter in the dark depths, so they have adopted a strategy of attaching sperm packets to all individuals they meet.[4]
O. deletron are the most common species found in the stomachs of northern elephant seals sampled off the coast of California.[5] It is an important prey item of the giant grenadier.[6] It is also eaten by the enigmatic Perrin's beaked whale (Mesoplodon perrini).[3]
References
- ↑ Barratt, I.; Allcock, L. (2014). "Octopoteuthis deletron". IUCN Red List of Threatened Species 2014: e.T163334A999352. doi:10.2305/IUCN.UK.2014-1.RLTS.T163334A999352.en. https://www.iucnredlist.org/species/163334/999352. Retrieved 19 November 2021.
- ↑ Julian Finn (2016). "Octopoteuthis deletron Young, 1972". World Register of Marine Species. Flanders Marine Institute. http://www.marinespecies.org/aphia.php?p=taxdetails&id=342057.
- ↑ 3.0 3.1 Stromberg, Michael. "This Deep-Sea Squid Breaks Off Its Own Arms to Confuse Predators". Smithsonian.com. With video. http://blogs.smithsonianmag.com/science/2012/08/video-this-deep-sea-squid-breaks-off-its-own-arms-to-confuse-predators/.
- ↑ Gorman, James (21 September 2011), "Amorous Squid Seeks Partner: Any Sex Will Do", The New York Times (New York): A1, https://www.nytimes.com/2011/09/21/science/21squid.html?nl=todaysheadlines&emc=tha23
- ↑ Le Beouf, Burney J.; Richard M. Laws (1994). Elephant Seals: Population ecology, behavior, and physiology. University of California Press. pp. 213–214. ISBN 978-0-520-08364-6.
- ↑ Drazen, Jeffrey C; Buckley, Troy W; Hoff, Gerald R (2001). "The feeding habits of slope dwelling macrourid fishes in the eastern North Pacific". Deep-Sea Research Part I: Oceanographic Research Papers 48 (3): 909–935. doi:10.1016/S0967-0637(00)00058-3. Bibcode: 2001DSRI...48..909D.
External links
Wikidata ☰ Q1223166 entry
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