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* ''Radianthus magnifica'' <small>(Quoy & Gaimard, 1833)</small>
* ''Radianthus magnifica'' <small>(Quoy & Gaimard, 1833)</small>
* ''Radianthus paumotensis'' <small>(Couthouy)</small>
* ''Radianthus paumotensis'' <small>(Couthouy)</small>
* ''Radianthus ritteri <small>(Kwietniewski, 1897)</small>
* ''Radianthus ritteri'' <small>(Kwietniewski, 1897)</small>
* ''Ropalactis magnifica'' <small>(Quoy & Gaimard, 1833)</small>
* ''Ropalactis magnifica'' <small>(Quoy & Gaimard, 1833)</small>
{{hidden end}}
{{hidden end}}
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==Description==
==Description==
The magnificent sea anemone is characterized by a flared oral disc, which reaches between 20 and 50&nbsp;cm in diameter, but in some specimens, this can reach 1 m.<ref>Weinberg S., 1996, DECOUVRIR LA MER ROUGE ET L’OCEAN INDIEN, ed. Nathan nature, France, 415p.</ref>
The magnificent sea anemone is characterized by a flared oral disc, which reaches between 20 and 50&nbsp;cm in diameter, but in some specimens, this can reach 1 m.<ref>{{cite book |last=Weinberg|first=Steven |date=1996|title=Découvrir la mer Rouge et l'océan Indien|trans-title=Discover the Red Sea and Indian Ocean |location=Paris|publisher= Nathan|url=https://archive.org/details/decouvrirlamerro0000wein|url-access=registration|isbn=9782092606599|language=fr}}</ref> The oral disc, the base of the tentacles, and the oral orifice have the same color, going from light beige to white.
The oral disc, the base of the tentacles, and the oral orifice have the same color, going from light beige to white.


The numerous tentacles exceed 8&nbsp;cm long. The [[sea anemone]], being a member of the [[Hexacorallia]], usually carries tentacles in multiples of six that are positioned in concentric circles. Their tips are fingered and often lighter in coloration than the tentacle body and are sometimes vividly colored.
The numerous tentacles exceed 8&nbsp;cm long. The [[sea anemone]], being a member of the [[Hexacorallia]], usually carries tentacles in multiples of six that are positioned in concentric circles. Their tips are fingered and often lighter in coloration than the tentacle body and are sometimes vividly colored.{{citation needed|date=March 2023}}


Its specific scientific name, ''magnifica'', and its vernacular name come from the bright color of the column, which is the visible outer structure when the animal retracts, and these range from electric blue to green, red, pink, purple, or brown.
Its specific scientific name, ''magnifica'', and its vernacular name come from the bright color of the column, which is the visible outer structure when the animal retracts, and these range from electric blue to green, red, pink, purple, or brown.{{citation needed|date=March 2023}}


==Distribution and habitat==
==Distribution and habitat==
The magnificent sea anemone is widespread throughout the tropical and subtropical waters of the [[Indo-Pacific]] area, from the eastern coasts of [[Africa]], the [[Red Sea]] included, to [[Polynesia]] and from south [[Japan]] to [[Australia]] and [[New-Caledonia]]{{r|Imprint}}<ref>Fautin, D. 2007. Actinaria of New Caledonia. In: Payri, C. & Richer De Forges, B. [Eds]. Compendium of marine species of New Caledonia. Doc. Sci. Tech. IRD, Nouméa. II7(2): 135.</ref>
The magnificent sea anemone is widespread throughout the tropical and subtropical waters of the [[Indo-Pacific]] area, from the eastern coasts of [[Africa]], the [[Red Sea]] included, to [[Polynesia]] and from south [[Japan]] to [[Australia]] and [[New-Caledonia]]{{r|Imprint}}<ref>
{{cite book|last1=Fautin|first1=Daphne|author1-link=Daphne Gail Fautin |date=2007 |editor1-last=Payri|editor1-first=Claude E.|editor2-last=Richer De Forges|editor2-first=Bertrand|publisher=Centre [[Institut de recherche pour le développement|IRD]] de Nouméa|title=Compendium of marine species of New Caledonia|pages=135 |chapter=Actinaria of New Caledonia |chapter-url=https://www.documentation.ird.fr/hor/fdi:010059771 |issn= 1297-9635|oclc= 862735362|edition=2nd|volume=II7}}</ref>


This anemone likes hard substrates well exposed to light and current from the surface to 20 m deep.<ref name="Imprint">{{cite journal|author1=Arvedlund M. |author2=Nielsen L.E. |title=Do the anemonefish Amphiprion ocellaris (Pisces : Pomacentridae) imprint themselves to their host sea anemone Heteractis magnifica (Anthozoa : Actinidae) ? |journal=Ethology |year=1996|volume=102 |issue=2 |pages=197–211 |doi=10.1111/j.1439-0310.1996.tb01118.x}}</ref> It has been observed down to 40 m deep.{{r|Drachen}}
This anemone likes hard substrates well exposed to light and current from the surface to 20 m deep.<ref name="Imprint">{{cite journal|author1-last=Arvedlund |author1-first=Michael |author2-last=Nielsen|author2-first= Lis Engdahl |name-list-style=amp |title=Do the anemonefish ''Amphiprion ocellaris'' (Pisces: Pomacentridae) imprint themselves to their host sea anemone ''Heteractis magnifica'' (Anthozoa: Actinidae)? |journal=[[Ethology (journal)|Ethology]] |year=1996|volume=102 |issue=2 |pages=197–211 |doi=10.1111/j.1439-0310.1996.tb01118.x|bibcode=1996Ethol.102..197A }}</ref> It has been observed down to 40 m deep.{{r|Drachen}}


==Biology==
==Biology==
The magnificent sea anemone has two feeding methods. The first one is through the [[photosynthesis]] of its symbiotic [[zooxanthella]]e, living in its tissues. The second method is through using its tentacles to stun, immobilize, and consume prey (small invertebrates, fry, or juvenile fish).
The magnificent sea anemone has two feeding methods. The first one is through the [[photosynthesis]] of its symbiotic [[zooxanthella]]e, living in its tissues. The second method is through using its tentacles to stun, immobilize, and consume prey (small invertebrates, fry, or juvenile fish).


The reproduction of the anemone can be [[sexual reproduction|sexual]] by simultaneous transmission of male and female [[gametes]] in the water or [[asexual reproduction|asexual]] by [[scissiparity]],<ref>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.</ref> which means that the anemone divides itself into two individuals, separating from the foot or the mouth. The magnificent sea anemone is found as solitary specimens throughout its range with aggregations only being found in the rim areas of its distribution. [[Genetic analyses]] does not suggest a difference between solitary specimens in the central distribution and clustering specimens at the rim. Asexual reproduction is found only in the rim areas and is probably the origin of the large aggregations.{{r|Drachen}}
The reproduction of the anemone can be [[sexual reproduction|sexual]] by simultaneous transmission of male and female [[gametes]] in the water or [[asexual reproduction|asexual]] by [[scissiparity]],<ref>{{cite journal |last1=Scott |first1=Anna |last2=Harrison |first2=Peter L. |name-list-style=amp |title=Embryonic and larval development of the host sea anemones ''Entacmaea quadricolor'' and ''Heteractis crispa'' |journal=[[The Biological Bulletin]] |date=2007 |volume=213 |issue=2 |pages=110–121 |doi=10.2307/25066627 |jstor=25066627 |pmid=17928518|s2cid=23785363 |author2-link=Peter L. Harrison}}</ref> which means that the anemone divides itself into two individuals, separating from the foot or the mouth. The magnificent sea anemone is found as solitary specimens throughout its range with aggregations only being found in the rim areas of its distribution. [[Genetic analyses]] does not suggest a difference between solitary specimens in the central distribution and clustering specimens at the rim. Asexual reproduction is found only in the rim areas and is probably the origin of the large aggregations.{{r|Drachen}}


The relationship between [[anemonefish]] and their host sea anemones is highly [[Nestedness|nested]] in structure. With 12 species of hosted anemonefish, the magnificent sea anemone is highly generalist. The anemonefish it hosts are also mostly generalist, the exceptions being ''Amphiprion pacificus'', only hosted by ''H. magnifica'', and ''A. akallopisos'', which is also hosted by ''[[Stichodactyla mertensii]]''.{{r|Nemo}} The species of anemonefish hosted by the magnificent sea anemone are: {{r|FieldGuide}}
The relationship between [[anemonefish]] and their host sea anemones is highly [[Nestedness|nested]] in structure. With 12 species of hosted anemonefish, the magnificent sea anemone is highly generalist. The anemonefish it hosts are also mostly generalist, the exceptions being ''Amphiprion pacificus'', only hosted by ''H. magnifica'', and ''A. akallopisos'', which is also hosted by ''[[Stichodactyla mertensii]]''.{{r|Nemo}} The species of anemonefish hosted by the magnificent sea anemone are: {{r|FieldGuide}}
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|title=Symbionts in ''H. magnifica''
|title=Symbionts in ''H. magnifica''
|width=220
|width=220
|lines=3
|align=center
|align=center
|File:Amphiprion akallopisos Aldabra.jpg|[[Amphiprion akallopisos |''A. akallopisos'']]
|File:Amphiprion akallopisos Aldabra.jpg|[[Amphiprion akallopisos |''A. akallopisos'']]
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|File:Pink anemonefish BWP.jpg|[[Amphiprion perideraion|''A. perideraion'']] hovering above ''Heteractis magnifica'' (purple-tip anemone)
|File:Pink anemonefish BWP.jpg|[[Amphiprion perideraion|''A. perideraion'']] hovering above ''Heteractis magnifica'' (purple-tip anemone)
|File:Amphiprion perideraion, Heteractis.jpg|[[Amphiprion perideraion|''A. perideraion'']]
|File:Amphiprion perideraion, Heteractis.jpg|[[Amphiprion perideraion|''A. perideraion'']]
|File:Heteractis magnifica.jpg| ''[[Dascyllus trimaculatus]]'' (threespot dascyllus)
|File:Crab in a sea anemone.jpg|A porcelain crab ''Neopetrolisthes maculatus''
|File:Crab in a sea anemone.jpg|A porcelain crab ''Neopetrolisthes maculatus''
|File:Damisela dominó (Dascyllus trimaculatus) en una anémona magnífica (Heteractis magnifica), mar Rojo, Egipto, 2023-04-18, DD 113.jpg|''[[Dascyllus trimaculatus|D. trimaculatus]]''
|
|
}}
}}
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==References==
==References==
{{Commons category|Heteractis magnifica}}
{{Commons category|Heteractis magnifica}}
⚫
{{Reflist|30em|refs=
{{Wikispecies|Heteractis magnifica}}
⚫
{{Reflist|refs=


<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. |name-list-style=amp |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|author1-link= Daphne Gail Fautin|author2-link=Gerald R. Allen}}</ref>


<ref name="Nemo">{{Cite journal |last=Ollerton |first=Jeff |last2=McCollin |first2=Duncan |last3=Fautin |first3=Daphne G. |last4=Allen |first4=Gerald R. |date=2007 |title=Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts |journal=Proceedings of the Royal Society of London B: Biological Sciences |volume=274 |issue=1609 |pages=591–598 |doi=10.1098/rspb.2006.3758 |pmc=1766375 |pmid=17476781}}</ref>
<ref name="Nemo">{{Cite journal |last1=Ollerton |first1=Jeff |last2=McCollin |first2=Duncan |last3=Fautin |first3=Daphne G. |last4=Allen |first4=Gerald R. |name-list-style=amp |date=2007 |title=Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts |journal=[[Proceedings of the Royal Society of London B: Biological Sciences]] |volume=274 |issue=1609 |pages=591–598 |doi=10.1098/rspb.2006.3758 |pmc=1766375 |pmid=17476781|author4-link=Gerald R. Allen|author3-link=Daphne Gail Fautin|author1-link=The Landscape and Biodiversity Research Group|author2-link=The Landscape and Biodiversity Research Group}}</ref>

<ref name="Drachen">{{cite journal|author1=Drachen, T.M | author2=Drachen Anders| author3= Nielsen, L.E. |author4=Chadwick, N. E. |title=An assemblage of the host anemone ''Heteractis magnifica'' in the northern Red Sea, and distribution of the resident anemonefish |journal=Journal of the Marine Biological Association of the United Kingdom |year=2005 |volume=84 | issue=3|pages=671–674 |doi=10.1017/S0025315404009737h |url=https://www.researchgate.net/publication/231882958}}</ref>
<ref name="Drachen">{{cite journal|author1=Brolund, T.M | author2=Tychsen, Anders| author3= Nielsen, L.E. |author4=Chadwick, N. E. |name-list-style=amp |title=An assemblage of the host anemone ''Heteractis magnifica'' in the northern Red Sea, and distribution of the resident anemonefish |journal=[[Journal of the Marine Biological Association of the United Kingdom]] |year=2005 |volume=84 | issue=3|pages=671–674 |doi=10.1017/S0025315404009737h | s2cid=54581276|url=https://www.researchgate.net/publication/231882958|url-access=registration}}</ref>
⚫
<ref name="Aqua">{{cite journal |author1=Allen, G |author2=Drew, J |author3=Fenner, D |title=Amphiprion pacificus, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, Samoa, and Wallis Island |journal=Aqua, International Journal of Ichthyology |year=2010 |url=http://www.aqua-aquapress.com/amphiprion-pacificus-a-new-species-of-anemonefish-pomacentridae-from-fiji-tonga-samoa-and-wallis-island-2/ |volume=16 |pages=129–138 |issn=0945-9871 |url-status=dead |archiveurl=https://web.archive.org/web/20150527191952/http://www.aqua-aquapress.com/amphiprion-pacificus-a-new-species-of-anemonefish-pomacentridae-from-fiji-tonga-samoa-and-wallis-island-2/ |archivedate=2015-05-27 |author1-link=Gerald R. Allen }}</ref>

⚫
<ref name="Aqua">{{cite journal |author1=Allen, G. |author2=Drew, J. |author3=Fenner, D. |name-list-style=amp |title=''Amphiprion pacificus'', a new species of anemonefish (Pomacentridae) from Fiji, Tonga, Samoa, and Wallis Island |journal=Aqua, International Journal of Ichthyology |year=2010 |url=https://aqua-aquapress.com/amphiprion-pacificus-a-new-species-of-anemonefish-pomacentridae-from-fiji-tonga-samoa-and-wallis-island-2/ |volume=16|issue=3 |pages=129–138 |url-status=live |archiveurl=https://web.archive.org/web/20150527191952/http://www.aqua-aquapress.com/amphiprion-pacificus-a-new-species-of-anemonefish-pomacentridae-from-fiji-tonga-samoa-and-wallis-island-2/ |archivedate=2015-05-27 |author1-link=Gerald R. Allen|url-access=subscription }}</ref>
}}
}}


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[[Category:Stichodactylidae]]
[[Category:Stichodactylidae]]
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[[Category:Cnidarians of the Indian Ocean]]
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[[Category:Cnidarians of the Pacific Ocean]]
[[Category:Animals described in 1833]]
[[Category:Animals described in 1833]]
[[Category:Taxa named by Jean René Constant Quoy]]
[[Category:Taxa named by Jean René Constant Quoy]]
[[Category:Taxa named by Joseph Paul Gaimard]]
[[Category:Taxa named by Joseph Paul Gaimard]]
⚫
[[Category:Cnidarians of the Indian Ocean]]
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[[Category:Cnidarians of the Pacific Ocean]]

Latest revision as of 09:24, 19 November 2024

Heteractis magnifica
Heteractis magnifica with Amphiprion perideraion
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hexacorallia
Order: Actiniaria
Family: Stichodactylidae
Genus: Heteractis
Species:
H. magnifica
Binomial name
Heteractis magnifica
(Quoy & Gaimard, 1833)
Synonyms
List
  • Actinia magnifica Quoy & Gaimard, 1833
  • Antheopsis ritteri Kwietniewski
  • Corynactis magnifica (Quoy & Gaimard, 1833)
  • Helianthopsis mabrucki Carlgren, 1900
  • Helianthopsis ritteri Kwietniewski, 1898
  • Heteractis ritteri (Kwietniewski, 1897)
  • Radianthus mabrucki (Carlgren, 1900)
  • Radianthus magnifica (Quoy & Gaimard, 1833)
  • Radianthus paumotensis (Couthouy)
  • Radianthus ritteri (Kwietniewski, 1897)
  • Ropalactis magnifica (Quoy & Gaimard, 1833)

Heteractis magnifica, also known by the common names magnificent sea anemone or Ritteri anemone, is a species of sea anemone belonging to the Stichodactylidae family native to the Indo-Pacific area.

Description

[edit]

The magnificent sea anemone is characterized by a flared oral disc, which reaches between 20 and 50 cm in diameter, but in some specimens, this can reach 1 m.[1] The oral disc, the base of the tentacles, and the oral orifice have the same color, going from light beige to white.

The numerous tentacles exceed 8 cm long. The sea anemone, being a member of the Hexacorallia, usually carries tentacles in multiples of six that are positioned in concentric circles. Their tips are fingered and often lighter in coloration than the tentacle body and are sometimes vividly colored.[citation needed]

Its specific scientific name, magnifica, and its vernacular name come from the bright color of the column, which is the visible outer structure when the animal retracts, and these range from electric blue to green, red, pink, purple, or brown.[citation needed]

Distribution and habitat

[edit]

The magnificent sea anemone is widespread throughout the tropical and subtropical waters of the Indo-Pacific area, from the eastern coasts of Africa, the Red Sea included, to Polynesia and from south Japan to Australia and New-Caledonia[2][3]

This anemone likes hard substrates well exposed to light and current from the surface to 20 m deep.[2] It has been observed down to 40 m deep.[4]

Biology

[edit]

The magnificent sea anemone has two feeding methods. The first one is through the photosynthesis of its symbiotic zooxanthellae, living in its tissues. The second method is through using its tentacles to stun, immobilize, and consume prey (small invertebrates, fry, or juvenile fish).

The reproduction of the anemone can be sexual by simultaneous transmission of male and female gametes in the water or asexual by scissiparity,[5] which means that the anemone divides itself into two individuals, separating from the foot or the mouth. The magnificent sea anemone is found as solitary specimens throughout its range with aggregations only being found in the rim areas of its distribution. Genetic analyses does not suggest a difference between solitary specimens in the central distribution and clustering specimens at the rim. Asexual reproduction is found only in the rim areas and is probably the origin of the large aggregations.[4]

The relationship between anemonefish and their host sea anemones is highly nested in structure. With 12 species of hosted anemonefish, the magnificent sea anemone is highly generalist. The anemonefish it hosts are also mostly generalist, the exceptions being Amphiprion pacificus, only hosted by H. magnifica, and A. akallopisos, which is also hosted by Stichodactyla mertensii.[6] The species of anemonefish hosted by the magnificent sea anemone are: [7]

H. magnifica also hosts Dascyllus trimaculatus, the threespot dascyllus, and various commensal shrimps.

[edit]
Symbionts in H. magnifica

References

[edit]
Wikimedia Commons has media related to Heteractis magnifica.
  1. ^ Weinberg, Steven (1996). Découvrir la mer Rouge et l'océan Indien [Discover the Red Sea and Indian Ocean] (in French). Paris: Nathan. ISBN 9782092606599.
  2. ^ a b Arvedlund, Michael & Nielsen, Lis Engdahl (1996). "Do the anemonefish Amphiprion ocellaris (Pisces: Pomacentridae) imprint themselves to their host sea anemone Heteractis magnifica (Anthozoa: Actinidae)?". Ethology. 102 (2): 197–211. Bibcode:1996Ethol.102..197A. doi:10.1111/j.1439-0310.1996.tb01118.x.
  3. ^ Fautin, Daphne (2007). "Actinaria of New Caledonia". In Payri, Claude E.; Richer De Forges, Bertrand (eds.). Compendium of marine species of New Caledonia. Vol. II7 (2nd ed.). Centre IRD de Nouméa. p. 135. ISSN 1297-9635. OCLC 862735362.
  4. ^ a b Brolund, T.M; Tychsen, Anders; Nielsen, L.E. & Chadwick, N. E. (2005). "An assemblage of the host anemone Heteractis magnifica in the northern Red Sea, and distribution of the resident anemonefish". Journal of the Marine Biological Association of the United Kingdom. 84 (3): 671–674. doi:10.1017/S0025315404009737h. S2CID 54581276.
  5. ^ Scott, Anna & Harrison, Peter L. (2007). "Embryonic and larval development of the host sea anemones Entacmaea quadricolor and Heteractis crispa". The Biological Bulletin. 213 (2): 110–121. doi:10.2307/25066627. JSTOR 25066627. PMID 17928518. S2CID 23785363.
  6. ^ Ollerton, Jeff; McCollin, Duncan; Fautin, Daphne G. & Allen, Gerald R. (2007). "Finding NEMO: nestedness engendered by mutualistic organization in anemonefish and their hosts". Proceedings of the Royal Society of London B: Biological Sciences. 274 (1609): 591–598. doi:10.1098/rspb.2006.3758. PMC 1766375. PMID 17476781.
  7. ^ 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.
  8. ^ Allen, G.; Drew, J. & Fenner, D. (2010). "Amphiprion pacificus, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, Samoa, and Wallis Island". Aqua, International Journal of Ichthyology. 16 (3): 129–138. Archived from the original on 2015-05-27.
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