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==Description==
==Description==
The sebae anemone is characterized by a flared oral disc which reaches between 20 and 50 cm in diameter and with multiple and long tentacles measuring 10 to 15 cm. These tentacles have rounded tip and the end is often colored with a purple or blue spot. The column, external structure of an anemone visible when the animal is closed, is gray in color and dotted with sticky whitish "warts". The sea anemone, being member of the [[Hexacorallia]], usually carries a number of tentacles multiple of six and they are positioned in concentric circles. These are light beige to purple.
The sebae anemone is characterized by a flared oral disc which reaches between 20 and 50 cm in diameter and with multiple and long tentacles measuring 10 to 15 cm. These tentacles have rounded tip and the end is often colored with a purple or blue spot. The column, external structure of an anemone visible when the animal is closed, is gray in color and dotted with sticky whitish "warts". The sea anemone, being member of the [[Hexacorallia]], usually carries a number of tentacles multiple of six and they are positioned in concentric circles. These are light beige to purple.


==Distribution & habitat==
==Distribution & habitat==
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<ref name="FieldGuide">{{cite book|last=Fautin|first=Daphne G.|author2=Allen, Gerald R. |title=Field Guide to Anemone Fishes and Their Host Sea Anemones |publisher=[[Western Australian Museum]] |year=1997 |url=http://www.nhm.ku.edu/inverts/ebooks/intro.html |isbn=9780730983651 |archive-url= https://web.archive.org/web/20150414095302/http://www.nhm.ku.edu/inverts/ebooks/intro.html |archive-date=14 April 2015}}</ref>
<ref name="FieldGuide">{{cite book|last=Fautin|first=Daphne G.|author2=Allen, Gerald R. |title=Field Guide to Anemone Fishes and Their Host Sea Anemones |publisher=[[Western Australian Museum]] |year=1997 |url=http://www.nhm.ku.edu/inverts/ebooks/intro.html |isbn=9780730983651 |archive-url= https://web.archive.org/web/20150414095302/http://www.nhm.ku.edu/inverts/ebooks/intro.html |archive-date=14 April 2015}}</ref>
<ref name="Aqua">{{cite journal|author1=[[Gerald R. Allen|Allen, G]]|author2=Drew, J |author3=[[Les Kaufman|Kaufman, L]] |title=Amphiprion barberi, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, and Samoa |publisher=aqua, International Journal of Ichthyology |year=2008|url=http://hdl.handle.net/10022/AC:P:14506 |volume=14 |page=105 |ISSN=0945-9871}}</ref>
<ref name="Aqua">{{cite journal|author1=[[Gerald R. Allen|Allen, G]]|author2=Drew, J |author3=[[Les Kaufman|Kaufman, L]] |title=Amphiprion barberi, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, and Samoa |publisher=aqua, International Journal of Ichthyology |year=2008|url=http://hdl.handle.net/10022/AC:P:14506 |volume=14 |page=105 |ISSN=0945-9871}}</ref>
<ref name="Nemo">{{cite journal |author1=Ollerton J |author2=McCollin D |author3=Fautin DG |author4=Allen GR. |title=Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts| journal=Proc R Soc B Biol Sci. |year=2007 |volume=274 |pages=591–598 |doi=10.1098/rspb.2006.3758}}</ref>
<ref name="Nemo">{{cite journal |author1=Ollerton J |author2=McCollin D |author3=Fautin DG |author4=Allen GR. |title=Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts| journal=Proc R Soc B Biol Sci |year=2007 |volume=274 |pages=591–598 |doi=10.1098/rspb.2006.3758}}</ref>
<ref name="Chadwick">{{cite journal|author1=Chadwick, N. E.|author2=Arvedlund, M. |title=Abundance of giant sea anemones and patterns of association with anemonefish in the northern Red Sea. |journal=Journal of the Marine Biological Association of the United Kingdom |year=2005 |volume=85 |pages=1287–1292 |doi=10.1017/S0025315405012440 |url=https://www.researchgate.net/publication/231827089_Abundance_of_giant_sea_anemones_and_patterns_of_association_with_anemonefish_in_the_northern_Red_Sea}}</ref>
<ref name="Chadwick">{{cite journal|author1=Chadwick, N. E.|author2=Arvedlund, M. |title=Abundance of giant sea anemones and patterns of association with anemonefish in the northern Red Sea. |journal=Journal of the Marine Biological Association of the United Kingdom |year=2005 |volume=85 |pages=1287–1292 |doi=10.1017/S0025315405012440 |url=https://www.researchgate.net/publication/231827089_Abundance_of_giant_sea_anemones_and_patterns_of_association_with_anemonefish_in_the_northern_Red_Sea}}</ref>
<ref name="Radiation">{{cite journal |author1=Litsios, G. |author2=Sims, C |author3=Wüest, R |author4=Pearman P.B. |author5=Zimmermann, N.E. |author6=Salamin N. |title=Mutualism with sea anemones triggered the adaptive radiation of clownfishes |url=http://www.biomedcentral.com/1471-2148/12/212 |journal=BMC Evolutionary Biology |year=2012 |issue= 11|pages=212 |doi=10.1186/1471-2148-12-212 |volume=12 |pmid=23122007 |pmc=3532366}}</ref>
<ref name="Radiation">{{cite journal |author1=Litsios, G. |author2=Sims, C |author3=Wüest, R |author4=Pearman P.B. |author5=Zimmermann, N.E. |author6=Salamin N. |title=Mutualism with sea anemones triggered the adaptive radiation of clownfishes |url=http://www.biomedcentral.com/1471-2148/12/212 |journal=BMC Evolutionary Biology |year=2012 |issue= 11|pages=212 |doi=10.1186/1471-2148-12-212 |volume=12 |pmid=23122007 |pmc=3532366}}</ref>
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* {{WRMS species|290089|''Heteractis crispa''| Hemprich & Ehrenberg, 1834}}
* {{WRMS species|290089|''Heteractis crispa''| Hemprich & Ehrenberg, 1834}}
{{Commons category|position=left|Heteractis crispa|Heteractis crispa<br>(Sebae anemone)}}
{{Commons category|position=left|Heteractis crispa|Heteractis crispa<br>(Sebae anemone)}}



[[Category:Actiniaria]]
[[Category:Actiniaria]]

Revision as of 04:25, 4 March 2018

Sebae anemone
A Red Sea clownfish (Amphiprion bicinctus) in a sebae anemone
Scientific classification
Kingdom:
Animalia
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Hexacorallia
Order:
Actiniaria
Family:
Stichodactylidae
Genus:
Heteractis
Species:
H. crispa
Binomial name
Heteractis crispa
(Hemprich and Ehrenberg in Ehrenberg, 1834)
Synonyms
  • Actinia (Entacmaea) crispa Hemprich & Ehrenberg in Ehrenberg, 1834 (original binomen)
  • Radianthus kuekenthali Kwietniewski, 1896
  • Radianthus lobatus Kwietniewski, 1897
  • Radianthus macrodactylus (Haddon & Shackleton, 1893

The sebae anemone(Heteractis crispa), also known as leathery sea anemone, long tentacle anemone or purple tip anemone, is a species of sea anemone belonging to the Stichodactylidae family native from the Indo-Pacific area.

Description

The sebae anemone is characterized by a flared oral disc which reaches between 20 and 50 cm in diameter and with multiple and long tentacles measuring 10 to 15 cm. These tentacles have rounded tip and the end is often colored with a purple or blue spot. The column, external structure of an anemone visible when the animal is closed, is gray in color and dotted with sticky whitish "warts". The sea anemone, being member of the Hexacorallia, usually carries a number of tentacles multiple of six and they are positioned in concentric circles. These are light beige to purple.

Distribution & habitat

The sebae anemone is widespread throughout the tropical and subtropical waters of the Indo-Pacific area from the eastern coasts of Africa, Red Sea included, to Polynesia and from south Japan to Australia and New-Caledonia.[1]

This sea anemone likes hard base substrates slightly covered with sand but it can also cling to branching corals from the surface to 40 meters deep.[1][2]

Biology

The sebae anemone has two ways to feed. The first one is through the inside via photosynthesis of its symbiotic hosts zooxanthellae, living in its tissues. And the second one is through a normal way by capturing its preys via its tentacles that allow it to immobilize its prey (small invertebrates, fry, or juvenile fish).

Its reproduction can be sexual by simultaneous transmission of male and female gametes in the water or asexual by scissiparity;[1] the anemone divides itself into two separate individuals from the foot or the mouth.

The relationship between anemonefish and their host sea anemones is highly nested in structure. With 15 species of hosted anemonefish, the sebae anemone is highly generalist, and mostly hosts generalist anemonefish. A. latezonatus, the wide-band anemonefish, is a specialist only hosted by H. crispa.[3]. In the Red Sea, it is considered a nursery anemone as sexually mature fish are rarely hosted by H. crispa.[4] A study in the northern Red Sea found anemone density affected whether H. crispa hosted anemonefish, with clusters of juvenile fish only found at low-density sites, while either one or no juvenile anemonefish were found in H. crispa at the high-density site. The authors theorised that H. crispa was a nursery anemone due to being unable to adequately protect adult anemonefish from predation, active emigration of fish to Entacmaea quadricolor and/or environmentally controlled cessation of fish growth.[4] Why this would be so in the Red Sea is not clear, when in the western Pacific, adult pairs are found in individuals of H. crispa.[5]

The anemone fish hosted by the sebae anemone are: [6][n 1]

Juveniles of Dascyllus trimaculatus are also associated with H. crispa.[6]

Anemonefish in H. crispa

Notes

  1. ^ In contrast, the sebae anemonefish (Amphiprion sebae), with which it shares part of its common name, is hosted by Stichodactyla haddoni, the saddle anemone.[6]
  2. ^ Field records are lacking for A. thiellei and H. crispa is listed as one of the probable hosts.[8]

References

  1. ^ a b c Scott A., Harrison P.L., 2007, Embryonic and Larval Development of the Host Sea Anemones Entacmaea quadricolor and Heteractis crispa, Biol. Bull., 213, 110-121.
  2. ^ Gosliner T.M., Behrens D.W., Williams G.C., 1996, CORAL REEF ANIMALS OF THE INDO-PACIFIC, ed. Sea Challengers, Monterey, California, 314p.
  3. ^ Ollerton J; McCollin D; Fautin DG; Allen GR. (2007). "Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts". Proc R Soc B Biol Sci. 274: 591–598. doi:10.1098/rspb.2006.3758.
  4. ^ a b Chadwick, N. E.; Arvedlund, M. (2005). "Abundance of giant sea anemones and patterns of association with anemonefish in the northern Red Sea". Journal of the Marine Biological Association of the United Kingdom. 85: 1287–1292. doi:10.1017/S0025315405012440.
  5. ^ Elliot, J.K.; Mariscal, R.N. (2001). "coexistence of nine anemonefish species: differential host and habitat utilization, size and recruitment". Marine Biology. 138: 23–26. doi:10.1007/s002270000441.
  6. ^ a b c Fautin, Daphne G.; Allen, Gerald R. (1997). Field Guide to Anemone Fishes and Their Host Sea Anemones. Western Australian Museum. ISBN 9780730983651. Archived from the original on 14 April 2015.
  7. ^ Allen, G; Drew, J; Kaufman, L (2008). "Amphiprion barberi, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, and Samoa". 14. aqua, International Journal of Ichthyology: 105. ISSN 0945-9871. {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ Litsios, G.; Sims, C; Wüest, R; Pearman P.B.; Zimmermann, N.E.; Salamin N. (2012). "Mutualism with sea anemones triggered the adaptive radiation of clownfishes". BMC Evolutionary Biology. 12 (11): 212. doi:10.1186/1471-2148-12-212. PMC 3532366. PMID 23122007.{{cite journal}}: CS1 maint: unflagged free DOI (link)
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