Samiksha Jaiswal (Editor)

Heteractis magnifica

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Kingdom  Animalia
Order  Actiniaria
Genus  Heteractis
Higher classification  Heteractis
Phylum  Cnidaria
Family  Stichodactylidae
Scientific name  Heteractis magnifica
Rank  Species
Heteractis magnifica Heteractis Magnifica Tell me some success stories Reef Central


Similar  Sea anemone, Actinia, Anemonia

Heteractis magnifica ritteri magnifica anemone


The magnificent sea anemone (Heteractis magnifica), also known as the Ritteri anemone, is a species of sea anemone belonging to the Stichodactylidae family native from the Indo-Pacific area.

Contents

Heteractis magnifica Radianthus magnifica old name Heteractis magnifica

Heteractis magnifica ritteri anemone wmv


Description

Heteractis magnifica Radianthus magnifica old name Heteractis magnifica

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

Heteractis magnifica Image Heteractis magnifica Ritteri Anemone BioLibcz

The numerous tentacles are exceeding 8 centimeters long. The sea anemone, being a member of the Hexacorallia, usually carries tentacles in multiples of 6 that are positioned in concentric circles. Their tips are fingered and often lighter in coloration than the tentacle body and are sometimes vividly colored.

Heteractis magnifica httpsuploadwikimediaorgwikipediacommonsthu

Its scientific and vernacular names 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.

Distribution & habitat

Heteractis magnifica Heteractis magnifica 01102012 YouTube

The magnificent sea 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

Heteractis magnifica heteractis magnifica Madang Ples Bilong Mi

This anemone likes hard substrates well exposed to light and current from the surface to 20 meters deep. While usually found down to 20 meters deep, it has been observed down to 40 meters deep.

Biology

The magnificent sea anemone has two feeding methods. The first one is through the photosynthesis of its symbiotic zooxanthellae, living in its tissues. And the second method is by capturing its prey with its tentacles that allow it to immobilize its 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. This means that the anemone divides itself into two separate individuals 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.

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, with the A. pacificus being only hosted by H magnifica. The other specialised fish is A. akallopisos which is also hosted by Stichodactyla mertensii. The species of anemonefish hosted by the magnificent sea anemone are:

  • Amphiprion akallopisos(Skunk anemonefish)
  • A. akindynos (Barrier Reef anemonefish)
  • A. bicinctus (Two-band anemonefish)
  • A. chrysogaster (Mauritian anemonefish)
  • A. chrysopterus (Orange-fin anemonefish)
  • A.clarkii (Clark's anemonefish)
  • A. leucokranos (White-bonnet anemonefish)
  • A. melanopus (Red & Black anemonefish)
  • A. nigripes (Maldive anemonefish)
  • A. ocellaris (False Clown anemonefish)
  • A. pacificus (Pacific anemonefish)
  • A. percula (Clown anemonefish)
  • A. perideraion (Pink skunk anemonefish)
  • H. magnifica also hosts Dascyllus trimaculatus, the threespot dascyllus, and various commensal shrimps.

    Symbionts in H. magnifica

    References

    Heteractis magnifica Wikipedia