Chionodraco hamatus

The Chionodraco hamatus is a fish in the family Channichthyidae, the "crocodile icefish".

Chionodraco hamatus
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Actinopterygii
Order:
Perciformes
Suborder:
Notothenioidei
Family:
Channichthyidae
Genus:
Chionodraco
Species:
C. hamatus
Binomial name
Chionodraco hamatus
(Lönnberg, 1905)[1]
Synonyms

Chaenichthys rhinoceratus hamatus Lönnberg, 1905
Chionodraco kathleenae Regan, 1914

Description

Specimens range from 33 to 37 cm, with a maximum length of 49 cm.[2]

Distribution

Chionodraco hamatus is found in the cold waters of the continental shelf in Antarctica.[2]

Habitat

This species lives in the demersal zone, and can be found at a depth range of 4 to 600 metres.[3]

Diet

Chionodraco hamatus feeds most on small fish, krill, and fish larvae. [4]

Reproduction

In common with many other channichthyid fishes, reproduction in Chionodraco hamatus involves laying eggs in a nest and parental guarding. Male prepares a nest and courts the female. Egg deposition (and presumably fertilization too) takes place at night. Female remains in the nest, guarding and fanning the eggs. Hatching takes place over a prolonged period of time. Male seems not to be involved in the care of the eggs.[5] The larvae have a long pelagic phase.[3]

References
  1. "WoRMS - World Register of Marine Species - Chionodraco hamatus (Lönnberg, 1905)". Marinespecies.org. Retrieved 2012-02-15.
  2. "Chionodraco hamatus". Fishbase.sinica.edu.tw. Retrieved 2012-02-15.
  3. "Chionodraco hamatus". www.fishbase.se. Retrieved 2020-08-12.
  4. "Polybrominated diphenil ethers (PBDEs) and organochlorine pollutants in two species of Antarctic fish". Globalchange.nasa.gov. Retrieved 2012-02-15.
  5. Ferrando, S.; Castellano, L.; Gallus, L.; Ghigliotti, L.; Masini, M. A.; Pisano, E. & Vacchi, M. (2014). "A demonstration of nesting in two Antarctic icefish (genus Chionodraco) using a fin dimorphism analysis and ex situ videos". PLOS ONE. 9 (3): e90512. Bibcode:2014PLoSO...990512F. doi:10.1371/journal.pone.0090512. PMC 3944016. PMID 24598889.


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