Biology:Lined butterflyfish

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Short description: Species of fish

Lined butterflyfish
Chaetodon lineolatus.jpg
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Chaetodontidae
Genus: Chaetodon
Subgenus: Chaetodon (Rabdophorus)
Species:
C. lineolatus
Binomial name
Chaetodon lineolatus
G. Cuvier, 1831
Synonyms[2]
  • Anisochaetodon lineolatus (Cuvier, 1831)
  • Tetragonoptrus lineolatus (Cuvier, 1831)
  • Chaetodon lunatus Cuvier, 1831
  • Chaetodon tallii Bleeker, 1854

The lined butterflyfish (Chaetodon lineolatus) is a species of marine ray-finned fish. a butterflyfish belonging to the family Chaetodontidae, one of the largest species in the genus Chaetodon.[3] It has a wide range from the Red Sea to South Africa and as far east as southern Japan and Hawaii.[2]

Taxonomy

It belongs to the large subgenus Rabdophorus which might warrant recognition as a distinct genus. In this group, it seems to be member of a lineage also containing species such as the spot-naped butterflyfish (C. oxycephalus), or the peculiar black-wedged butterflyfish (C. falcula) and Pacific double-saddle butterflyfish or "false falcula" (C. ulietensis). These four differ wildly in shape, but all have bluish vertical lines on a white body with yellow behind, and black on back and caudal peduncle in addition to the typical eyestripe of Chaetodon. The blue-cheeked butterflyfish (C. semilarvatus) seems to be a far more basal lineage of Rabdophorus relative to them, but it also has the tell-tale blue vertical lines.[4][5]

Description

Lined butterflyfish may grow up to 30 centimetres (12 in) long, which among Chaetodon is matched only by the saddle butterflyfish (C. ephippium), making them about as big as dinner plates. They are white in color, with thin black vertical bars which join a thick black band at the base of the tail and dorsal fin. The tail, dorsal, and anal fins are yellow.[3][6]

Distribution and habitat

Lined Butterflyfish in the Red Sea, Egypt

The species occurs along the east coast of Africa including the Red Sea and Mozambique Channel, throughout Northern Australia including the Coral Sea, Gulf of Carpentaria, and Timor Sea, and throughout West Indo-Pacific including the Java Sea, South China Sea, Philippine Sea, and Celebes Sea.[7]

This uncommon fish is found in pairs or swimming alone, or occasionally in spawning aggregations. It occurs between 2 and 50 m depth, in coral-rich areas of reefs and lagoons.[2]

Ecology

Coral polyps, small anemones, algae and invertebrates make up the lined butterflyfish's diet.[3][2] It is known to be territorial.[8] This territorialism is connected to their highly specific feeding habits that is located on certain areas.[9]

The species can reach an age of up to ten years.[2]

Development

Larvae of fish in the family Chaetodontidae have a random distribution pattern causing them to settle either in the same habitats as adult conspecifics; habitats with high coral cover; or habitats completely different from those used by adult conspecifics. Juveniles that are not in an adult habitat live in their current habitat until reaching maturity. Once they reached post-settlement growth of greater than 100 mm, they migrate to adult habitats if they are not already in that environment.[9]

Reproduction

Very little is known about the spawning of butterflyfish as a whole, however it is believed that they spawn near their feeding habitats during new moon.[10] The lined butterflyfish mates in lifelong monogamous relationships. However, the male chooses to either stay with its one mate or leave and find another mate. This appears to maximize their fecundity. Lined butterflyfish are social maters, meaning they spend time with their mate outside of just spawning often living together in the same habitat. The species however exhibits little to no parental care to their young.[11]

Predation

The species is preyed on by many larger marine predators including sharks, eels, and snappers; predation may be intensified by loss of habitats and feeding grounds.[12]

Ecosystem roles

Corals and members of the family Chaetodontidae were thought to have a commensal relationship. Coral provides the butterflyfish with food and shelter while coral gets little to nothing in return. However, upon further investigation it seems that C. lineolatus and other corallivore members of Chaetodontidae pose a bigger threat to coral than previously understood. Corallivores disturb the growth of coral species. This predation may have a long-term effect of on reef biodiversity. The loss of habitat affects reef fishes, including the Chaetodontidae, by making them more prone to predation from larger fishes.[13]

Conservation status

The species is classified as Least Concern by the IUCN due to its wide distribution and presence in protected areas.[1] Its biggest threat is the loss of habitat via coral reef degradation, due to the overdevelopment and over-use of coral reefs and their resources.[14]

References

  1. ↑ 1.0 1.1 Myers, R.F.; Pratchett, M. (2010). "Chaetodon lineolatus". IUCN Red List of Threatened Species 2010: e.T165669A6086327. doi:10.2305/IUCN.UK.2010-4.RLTS.T165669A6086327.en. https://www.iucnredlist.org/species/165669/6086327. Retrieved 20 November 2021. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Froese, Rainer and Pauly, Daniel, eds. (2019). "Chaetodon lineolatus" in FishBase. December 2019 version.
  3. ↑ 3.0 3.1 3.2 Lieske, E.; Myers, R.F. (2004). Coral reef guide – Red Sea. HarperCollins, London. ISBN 0-00-715986-2. 
  4. ↑ Fessler, Jennifer L.; Westneat, Mark W (2007). "Molecular phylogenetics of the butterflyfishes (Chaetodontidae): Taxonomy and biogeography of a global coral reef fish family". Molecular Phylogenetics and Evolution 45 (1): 50–68. doi:10.1016/j.ympev.2007.05.018. PMID 17625921. 
  5. ↑ Hsu, Kui-Ching; Chen, Jeng-Ping; Shao, Kwang-Tsao (2007). "Molecular phylogeny of Chaetodon (Teleostei: Chaetodontidae) in the Indo-West Pacific: evolution in geminate species pairs and species groups". Raffles Bulletin of Zoology Supplement 14: 77–86. http://rmbr.nus.edu.sg/rbz/biblio/s14/s14rbz10_Hsu-pp77-86.pdf. 
  6. ↑ Hoover, John P. (2008). The Ultimate Guide to Hawaiian Reef Fishes, Sea Turtles, Dolphins, Whales, and Seals. Mutual Publishing. ISBN:978-1-56647-887-8.
  7. ↑ Registry-Migration.Gbif.Org (2019). Chaetodon lineolatus Cuvier ex Quoy & Gaimard, 1831. GBIF Secretariat. doi:10.15468/39omei. 
  8. ↑ Littlewood, D.T.J. (2004). "Molecular phylogenetics of Chaetodon and the Chaetodontidae (Teleostei: Perciformes) with reference to morphology". Zootaxa 779: 1. doi:10.11646/zootaxa.779.1.1. https://www.researchgate.net/publication/37625014. 
  9. ↑ 9.0 9.1 Pratchett, M. S. (2008). "Habitat associations of juvenile versus adult butterflyfishes". Coral Reefs 27 (3): 541–551. doi:10.1007/s00338-008-0357-8. Bibcode: 2008CorRe..27..541P. 
  10. ↑ Yabuta, S. (1997). "Spawning migrations in the monogamous butterflyfish, Chaetodon trifasciatus". Ichthyological Research 44 (2–3): 177–182. doi:10.1007/BF02678695. 
  11. ↑ Whiteman, E. A.; Côté, I. M. (2004). "Monogamy in Marine Fishes". Biological Reviews 79 (2): 351–375. doi:10.1017/S1464793103006304. PMID 15191228. 
  12. ↑ Pratchett, M. S. (2006). "Declines in the abundance of Chaetodon butterflyfishes following extensive coral depletion". Journal of Fish Biology 69 (5): 1269–1280. doi:10.1111/j.1095-8649.2006.01161.x. 
  13. ↑ Cole, Andrew J. (2008). "Diversity and functional importance of coral-feeding fishes on tropical coral reefs". Fish and Fisheries 9 (3): 286–307. doi:10.1111/j.1467-2979.2008.00290.x. 
  14. ↑ Cesar, H.; Burke, L.; Pet-Soede, L. (2003). The economics of worldwide coral reef degradation (Report). Cesar environmental economics consulting. http://eprints.uberibz.org/48/1/Rappor03.pdf. 

External links

Wikidata ☰ Q1147338 entry



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