Apletodon dentatus

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Apletodon dentatus
Apletodon dentatus.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiesociformes
Family: Gobiesocidae
Genus: Apletodon
Species:
A. dentatus
Binomial name
Apletodon dentatus
(Facciolà, 1887)
Synonyms [2]
  • Lepadogaster dentatusFacciolà, 1887
  • Lepadogaster microcephalus Brook, 1890
  • Apletodon microcephalus(Brook, 1890)
  • Lepadogaster stictopteryx Holt & Byrne, 1899

Apletodon dentatus, the small-headed clingfish, is a species of clingfish from the family Gobiesocidae. It is a benthic fish of shallow, rocky water on the coasts of the eastern Atlantic Ocean and the western Mediterranean Sea.

Contents

Description

Apletodon dentatus is small growing to a maximum length of 4 centimetres (1.6 in). When viewed from above it can be seen to have a depressed triangular head. The dorsal and anal fin are short, rounded and located close to the caudal fin which is also rounded, as is the pectoral fin. The pelvic fin has been modified to form a suction disc which is used to stick onto the substrate. Its colour is variable; it is frequently green with darker mottling, or reddish-brown dotted with dark brown, and it has large white dorsal spots. The adult males can show a large black or purple blotch on the dorsal and anal fins and purple patches on their throat. [3] It can show a white band behind the eyes and a stripe through each eye. [4]

Distribution

Apletodon dentatus is found in the eastern North Atlantic Ocean and the western Mediterranean Sea. In the Atlantic the northernmost extent is in western Scotland and it extends as far south as Morocco. It is found around the Canary Islands and the Azores. In the Mediterranean it has been recorded from as far east as Cyprus. [1]

Habitat and biology

Apletodon dentatus occurs in the tidal and subtidal zones where it is associated with submerged vegetation such as the sea grass Posidonia oceanica off France, with beds of the large brown algae of the genus Cystoseira off Sicily, and with rocky areas with brown algae. This species has also been recorded among turf-like growths of the alga Gelidium latifolium , it associates with the sea urchins Paracentrotus lividus and Sphaerechinus granularis , and then among boulders. As it goes through its different life stages it moves through these habitats. It has also been found in the hollow bulbs of the seaweed Saccorhiza polyschides . The pelagic stage of its larvae are able to survive for around two weeks in open water. [1] They are associated with the holdfasts of kelp. [4]

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References

  1. 1 2 3 Herler, J.; Kovacic, M. & Williams, J.T. (2015). "Apletodon dentatus". IUCN Red List of Threatened Species . 2015: e.T198771A45100025. Retrieved 2 June 2019.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2019). "Apletodon dentatus" in FishBase. April 2019 version.
  3. Barnes, M.K.S. (2008). Tyler-Walters H.; Hiscock K. (eds.). "Apletodon dentatus Small-headed clingfish". Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth. Marine Biological Association of the United Kingdom. Retrieved 2 June 2019.
  4. 1 2 "Small-headed Clingfish". UK Fish. Retrieved 2 June 2019.