Cinnamon clownfish

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Cinnamon clownfish
Cinnamon clownfish right side.jpg
A. melanopus in Entacmaea quadricolor
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Family: Pomacentridae
Genus: Amphiprion
Species:
A. melanopus
Binomial name
Amphiprion melanopus
Bleeker, 1852
Synonyms
  • Amphiprion monofasciatus Thiollière, 1857
  • Prochilus macrostomaBleeker, 1877
  • Amphiprion arion De Vis, 1884
  • Amphiprion verweyi Whitley, 1933

Amphiprion melanopus, also known as the cinnamon clownfish, fire clownfish, red and black anemonefish, black-backed anemonefish or dusky anemonefish is a widely distributed anemonefish chiefly found in the western and southern parts of the Pacific Ocean. [2] . The species scientific name 'melanopus' is Greek, meaning black feet in reference to the black pelvic fins. Like all anemonefishes it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of the host anemone. It is a sequential hermaphrodite with a strict sized based dominance hierarchy: the female is largest, the breeding male is second largest, and the male non-breeders get progressively smaller as the hierarchy descends. [3] They exhibit protandry, meaning the breeding male will change to female if the sole breeding female dies, with the largest non-breeder becomes the breeding male. [2]

Contents

Description

A. melanopus adults can grow to 12 cm (4.7 inches). [4] The body of A. melanopus is a dark red to orange with mahogany sides. Juveniles and adults have a white head band, which is wide and starts behind the eye, which may gave a blue tint. The dorsal and caudal fins of the fish have a lighter color than the rest of the fish and can sometimes be a cinnamon color. [5] The pelvic and anal fins are usually black. [2]

Similar species

Historically anemonefish have been identified by morphological features, color pattern in the field, while in a laboratory other features such as scalation of the head, tooth shape and body proportions. [2] These features have been used to group species into 6 complexes. [6] A. melanopus is in the tomato complex and so is similar to other members of the complex. A. rubrocinctus and A. melanopus are similar in appearance but geographically distinct with A. rubrocinctus limited to north western Australia. A. barberi was previously thought to be a geographic variation of A. melanopus and there are significant color-pattern differences, with A. melanopus having a dark brown or blackish body, compared to the red orange of A. barberi. A. melanopus also has 19-26 spines in the upper-opercular series while A. barberi has only 11–19. [7]

Distribution and habitat

A. melanopus is widely distributed in the western Pacific, from the Great Barrier Reef north to the Marshall Islands and Guam, New Guinea and from Vanuatu and New Caledonia to eastern Indonesia. It was previously thought to be present in Fiji, Tonga, and the Samoan Islands, however that fish has now been described as a separate species, A. barberi. [7]

Host anemones

The relationship between anemonefish and their host sea anemones is not random and instead is highly nested in structure. [8] A. melanopus is a generalist, being usually hosted by 1 anemone, but also hosted by 2 other anemones. It is hosted by the following 3 out of the 10 host anemones: [2] [9] [8]

Diet

Like all anemonefish, A. melanopus is omnivorous and its diet is based on zooplankton, small benthic crustaceans and algaes. [10]

Conservation status

Anemonefish and their host anemones are found on coral reefs and face similar environmental issues. Like corals, anemone's contain intracellular endosymbionts, zooxanthellae, and can suffer from bleaching due to triggers such as increased water temperature or acidification. The other threat to anemonefish is collection for the marine aquarium trade where anemonefish make up 43% of the global marine ornamental trade, and 25% of the global trade comes from fish bred in captivity, while the majority are captured from the wild, [11] [12] accounting for decreased densities in exploited areas. [13] While bleaching is a significant threat to anemonefish and their host anemones, there is evidence suggesting that collection compounds the localised impact of bleaching. [14] This species was not evaluated in the 2012 release of the IUCN Red List

In aquaria

The species has successfully been bred in an aquarium. It may move or cover corals with sand. A. melanopus may become territorial and aggressive once established in a tank. [4] This fish will accept a variety of foods in the aquarium, including flakes, brine shrimp, mysid shrimp, algae, and pellets. [15]

Related Research Articles

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<span class="mw-page-title-main">Bubble-tip anemone</span> Species of sea anemone

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<i>Amphiprion akindynos</i> Species of fish

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<span class="mw-page-title-main">Three-band anemonefish</span> Species of fish

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<i>Amphiprion mccullochi</i> Species of fish

Amphiprion mccullochi, also known as whitesnout anemonefish or McCulloch's anemonefish, is a species of anemonefish found in subtropical waters at Lord Howe Island and Norfolk Island.. It was named for Allan McCulloch, a former Curator of Fishes at the Australian Museum, Sydney. Like all anemonefishes it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of the host anemone. It is a sequential hermaphrodite with a strict sized based dominance hierarchy: the female is largest, the breeding male is second largest, and the male non-breeders get progressively smaller as the hierarchy descends. They exhibit protandry, meaning the breeding male will change to female if the sole breeding female dies, with the largest non-breeder becomes the breeding male.

<i>Amphiprion latezonatus</i> Species of fish

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<i>Amphiprion chagosensis</i> Species of fish

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<i>Amphiprion barberi</i> Species of fish

Amphiprion barberi, also known as fiji anemonefish a species of anemonefish that is found in the western Pacific Ocean. It was previously considered a geographic color variation of other anemonefish, initially Amphiprion rubrocinctus from 1972 and then Amphiprion melanopus from 1980 however further study and DNA sequencing resulted in A. barberi being described as a new species in 2008. Like all anemonefishes it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of the host anemone. It is a sequential hermaphrodite with a strict sized based dominance hierarchy: the female is largest, the breeding male is second largest, and the male non-breeders get progressively smaller as the hierarchy descends. They exhibit protandry, meaning the breeding male will change to female if the sole breeding female dies, with the largest non-breeder becomes the breeding male. The fish's natural diet includes zooplankton.

<i>Amphiprion leucokranos</i> Species of fish

Amphiprion leucokranos is a naturally occurring hybrid anemonefish found in the western central Pacific Ocean. Like all anemonefishes it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of the host anemone. It is a sequential hermaphrodite with a strict dominance hierarchy, features which are critical to the direction of gene flow.

<i>Amphiprion pacificus</i> Species of fish

Amphiprion pacificus, is a species of anemonefish that is found in the western Pacific Ocean. Like all anemonefishes it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of the host anemone. It is a sequential hermaphrodite with a strict sized based dominance hierarchy: the female is largest, the breeding male is second largest, and the male non-breeders get progressively smaller as the hierarchy descends. They exhibit protandry, meaning the breeding male will change to female if the sole breeding female dies, with the largest non-breeder becomes the breeding male. The fish's natural diet includes zooplankton.

References

  1. ↑ Jenkins, A.; Allen, G.; Myers, R.; Yeeting, B. & Carpenter, K.E. (2017). "Amphiprion melanopus". IUCN Red List of Threatened Species . 2017: e.T188491A1882866. doi: 10.2305/IUCN.UK.2017-2.RLTS.T188491A1882866.en .
  2. 1 2 3 4 5 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 18 October 2014.
  3. ↑ Buston PM (May 2004). "Territory inheritance in clownfish". Proc. Biol. Sci. 271 (Suppl 4): S252–4. doi:10.1098/rsbl.2003.0156. PMC   1810038 . PMID   15252999.
  4. 1 2 Lougher, T. (2006). What Fish?: A Buyer's Guide to Marine Fish. Interpet Publishing. p. 20. ISBN   978-1-84286-118-9.
  5. ↑ Cinnamon clownfish fact sheet. (2004). Retrieved December 6, 2012, from Aquatic Community website
  6. ↑ Goemans, B. "Anemonefishes" . Retrieved 20 September 2015.
  7. 1 2 Allen, G; Drew, J; Kaufman, L (2008). "Amphiprion barberi, a new species of anemonefish (Pomacentridae) from Fiji, Tonga, and Samoa". Aqua, International Journal of Ichthyology. 14: 105. ISSN   0945-9871.
  8. 1 2 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 (1609): 591–598. doi:10.1098/rspb.2006.3758. PMC   1766375 . PMID   17476781.
  9. ↑ Bray, D.J. (2011). "Blackback Anemonefish, Amphiprion melanopus". Fishes of Australia. Retrieved 25 Aug 2014.
  10. ↑ "Amphiprion melanopus". Encyclopedia of Life.
  11. ↑ Dhaneesh, K.V.; R. Vinoth; Swagat Gosh; M. Gopi; T.T. Ajith Kumar; T. Balasubramanian (2013). "Hatchery Production of Marine Ornamental Fishes: An Alternate Livelihood Option for the Island Community at Lakshadweep". In Sundaresan, J. (ed.). Climate Change and Island and Coastal Vulnerability. Vol. 17. Capital Publishing Company. pp. 253–265. doi:10.1007/978-94-007-6016-5_17. ISBN   978-94-007-6015-8.
  12. ↑ Taylor, M.; Green, E. & Razak, T. (2003). From ocean to aquarium: A global trade in marine ornamental species (PDF). UNEP world conservation and monitoring centre (WCMC). pp. 1–64. Archived from the original (PDF) on 7 July 2009. Retrieved 18 April 2013.
  13. ↑ Shuman, Craig; Gregor Hodgson; Richard F. Ambrose (2005). "Population impacts of collecting sea anemones and anemonefish for the marine aquarium trade in the Philippines". Coral Reefs. 24 (4): 564–573. Bibcode:2005CorRe..24..564S. doi:10.1007/s00338-005-0027-z. S2CID   25027153.
  14. ↑ Jones, A.M.; Gardner, S.; Sinclair, W. (2008). "Losing 'Nemo': bleaching and collection appear to reduce inshore populations of anemonefishes". Journal of Fish Biology. 73 (3): 753–756. Bibcode:2008JFBio..73..753J. doi:10.1111/j.1095-8649.2008.01969.x.
  15. ↑ Sea and Reef Clownfish. (2012). Retrieved December 10, 2012, from Sea and Reef website
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