Patagonian red octopus: Difference between revisions
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==Size and description== |
==Size and description== |
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''E. megalocyathus'' is a relatively large octopus, though not as large as some other giant octopuses, with an average mass of around 4 kg,<ref name=perez>{{cite journal |authors=Perez, M.C., D.A. Lopez, K. Aguila and M.L. Gonzalez |year=2006 |title=Feeding and growth in captivity of the octopus ''Enteroctopus megalocyathus'' Gould, 1852 |journal=Aquaculture Research |volume=37 |pages=550–555 |doi=10.1111/j.1365-2109.2006.01454.x}}</ref> a [[mantle (mollusc)|mantle]] length of 22.5 cm,<ref name=ceph>[http://www.cephdev.utmb.edu/spdb/speciesc.cfm?CephID=612 CephBase: ''Enteroctopus megalocyathus'']</ref> and in excess of 1 m in total length.<ref>{{cite journal |authors=Gleadall, I.G. and M.A. Salcedo-Vargas |year=2004 |title=Catalogue of the Cephalopoda Specimens in the Zoology Department of Tokyo University Museum |journal=Interdisciplinary Information Sciences |volume=10 |issue=2 |pages=113–142 |url=http://ir.library.tohoku.ac.jp/re/bitstream/10097/17272/1/10_113.pdf |doi=10.4036/iis.2004.113}}</ref> ''E. megalocyathus'', like other octopuses in the genus ''Enteroctopus'', has longitudinal folds and grooves on the body and large, paddle-like papillae.<ref name=Hoch98>Hochberg, F.G. (1998). ''Enteroctopus''. In: ''Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel''. Santa Barbara Museum of Natural History, Santa Barbara, California. p. 203.</ref> |
''E. megalocyathus'' is a relatively large octopus, though not as large as some other giant octopuses, with an average mass of around 4 kg,<ref name=perez>{{cite journal |authors=Perez, M.C., D.A. Lopez, K. Aguila and M.L. Gonzalez |year=2006 |title=Feeding and growth in captivity of the octopus ''Enteroctopus megalocyathus'' Gould, 1852 |journal=Aquaculture Research |volume=37 |pages=550–555 |doi=10.1111/j.1365-2109.2006.01454.x}}</ref> a [[mantle (mollusc)|mantle]] length of 22.5 cm,<ref name=ceph>[http://www.cephdev.utmb.edu/spdb/speciesc.cfm?CephID=612 CephBase: ''Enteroctopus megalocyathus''] {{webarchive|url=https://web.archive.org/web/20071209231817/http://www.cephdev.utmb.edu/spdb/speciesc.cfm?CephID=612 |date=2007-12-09 }}</ref> and in excess of 1 m in total length.<ref>{{cite journal |authors=Gleadall, I.G. and M.A. Salcedo-Vargas |year=2004 |title=Catalogue of the Cephalopoda Specimens in the Zoology Department of Tokyo University Museum |journal=Interdisciplinary Information Sciences |volume=10 |issue=2 |pages=113–142 |url=http://ir.library.tohoku.ac.jp/re/bitstream/10097/17272/1/10_113.pdf |doi=10.4036/iis.2004.113 }}{{dead link|date=September 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> ''E. megalocyathus'', like other octopuses in the genus ''Enteroctopus'', has longitudinal folds and grooves on the body and large, paddle-like papillae.<ref name=Hoch98>Hochberg, F.G. (1998). ''Enteroctopus''. In: ''Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel''. Santa Barbara Museum of Natural History, Santa Barbara, California. p. 203.</ref> |
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==Fisheries== |
==Fisheries== |
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==External links== |
==External links== |
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{{CephBase_Species|612}} |
{{CephBase_Species|612}} |
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* [http://www.guiamarina.com/chile/01%20animals/04%20Mollusca/Cephalopoda/Enteroctopus%20megalocyathus/index.html Images of ''E. megalocyathus''], many of which show the longitudinal folds of the body and paddle-like papillae that characterize this genus. |
* [https://web.archive.org/web/20070305142305/http://www.guiamarina.com/chile/01%20animals/04%20Mollusca/Cephalopoda/Enteroctopus%20megalocyathus/index.html Images of ''E. megalocyathus''], many of which show the longitudinal folds of the body and paddle-like papillae that characterize this genus. |
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{{Edible molluscs}} |
{{Edible molluscs}} |
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Revision as of 15:29, 21 September 2017
| Southern red octopus | |
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| Scientific classification | |
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| Genus: | |
| Species: | E. megalocyathus
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| Binomial name | |
| Enteroctopus megalocyathus (Gould, 1852)
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| Synonyms | |
Enteroctopus megalocyathus, also known as the southern red octopus, is a medium-sized octopus, and the type species for the genus Enteroctopus.
Size and description
E. megalocyathus is a relatively large octopus, though not as large as some other giant octopuses, with an average mass of around 4 kg,[1] a mantle length of 22.5 cm,[2] and in excess of 1 m in total length.[3] E. megalocyathus, like other octopuses in the genus Enteroctopus, has longitudinal folds and grooves on the body and large, paddle-like papillae.[4]
Fisheries
E. megalocyathus is one of the two commercially significant octopuses in Chilean waters, along with Octopus mimus. Yearly catch of the two octopuses fluctuates between 2000 and 5000 tons.[1]
Predators
Like most octopuses, E. megalocyathus is a choice meal for many predators larger than it. E. megalocyathus has been shown to be a major dietary component of beaked skates (Dipturus chilensis), spiny dogfish (Squalus acanthias),[5] and the South American sea lion (Otaria flavescens).[6]
Range
This octopus is native to the southeastern coast of South America along the coasts of Argentina and Chile up to the Chiloé Archipelago, and the Falkland Islands.[2]
References
- ^ a b "Feeding and growth in captivity of the octopus Enteroctopus megalocyathus Gould, 1852". Aquaculture Research. 37: 550–555. 2006. doi:10.1111/j.1365-2109.2006.01454.x.
{{cite journal}}: Cite uses deprecated parameter|authors=(help) - ^ a b CephBase: Enteroctopus megalocyathus Archived 2007-12-09 at the Wayback Machine
- ^ "Catalogue of the Cephalopoda Specimens in the Zoology Department of Tokyo University Museum" (PDF). Interdisciplinary Information Sciences. 10 (2): 113–142. 2004. doi:10.4036/iis.2004.113.
{{cite journal}}: Cite uses deprecated parameter|authors=(help)[permanent dead link] - ^ Hochberg, F.G. (1998). Enteroctopus. In: Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Santa Barbara Museum of Natural History, Santa Barbara, California. p. 203.
- ^ "Food habits of Dipturus chilensis (Pisces: Rajidae) off Patagonia, Argentina". ICES Journal of Marine Science. 58: 288–297. 2001. doi:10.1006/jmsc.2000.1010.
{{cite journal}}: Cite uses deprecated parameter|authors=(help) - ^ "Food habits of the South American sea lion, Otaria flavescens, off Patagonia, Argentina" (PDF). Fishery Bulletin. 98: 250–263. 2000.
{{cite journal}}: Cite uses deprecated parameter|authors=(help)
- Ortiz, N. (2006). "First description of eggs, hatchlings and hatchling behaviour of Enteroctopus megalocyathus (Cephalopoda: Octopodidae)". Journal of Plankton Research. 28 (10): 881–890. doi:10.1093/plankt/fbl023.
External links
- "CephBase: Patagonian red octopus". Archived from the original on 2005-08-17.
- Images of E. megalocyathus, many of which show the longitudinal folds of the body and paddle-like papillae that characterize this genus.