Adrianichthys kruyti

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Adrianichthys kruyti

Critically endangered, possibly extinct  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Beloniformes
Family: Adrianichthyidae
Genus: Adrianichthys
Species:
A. kruyti
Binomial name
Adrianichthys kruyti

Adrianichthys kruyti (the duck-billed buntingi or duckbilled buntingi) is a

Siboga Expedition to Indonesia.[3]

Description

The duck-billed buntingi is on average about 11 cm long

Adrianichthyidae, is its peculiar "duck-bill," or overhanging upper jaw.[5] It has eyes that protrude above the dorsal profile of its head and are visible from below. It also has 14–16 rays in dorsal fin and about 75 scales in lateral rows.[5]

Conservation

Some local fisherman living near

Oreochromis mossambicus
, most likely led to their present conservation status.

Conservation status

The duck-billed buntingi's status on the

World Conservation Union changing the status of that species from endangered to critically endangered species on the IUCN Red List.[1] The matter has been referred to the relevant Specialist Group for a decision.[1] Harrison and Stiassny believe that one of the possible causes for the extinction or decline in the A. kruyti population was an introduced disease or parasite.[2]

Conservation history

  • 1988 Endangered (IUCN Conservation Monitoring Centre 1988)
  • 1990 Endangered (IUCN 1990)
  • 1994 Endangered (Groombridge 1994)
  • 1996 Critically Endangered (IUCN 1996)
  • 2019 Critically Endangered (PE) (IUCN 2019)

Ecology

The duck-billed buntingi only live in Lake Poso which is a freshwater body with a pH range: 7.5 – 8.5.

Xenopoecilus poptae, may serve to give us some indication of the duck-billed buntingi's biology.[4] X. poptae was said to have congregated in great shoals of 12–15 m deep from November to January.[4] X. poptae reproductive systems are atypical they are believed to have voided eggs that hatched on contact with the lake water.[4]

Etymology

The specific name honours the Dutch medical missionary Albert Christian Kruyt (1889-1949) who obtained the type for Weber, and who was a colleague of Nicolaus Adriani after whom the genus Adrianichthys is named.[6] A. kuyti is the type species of its genus.[7]

References

  1. ^
    doi:10.2305/IUCN.UK.2019-2.RLTS.T523A90980485.en
    . Retrieved 20 November 2021.
  2. ^ a b Harrison, Ian J. and Melanie L. J. Stiassny (1999). "The Quiet Crisis," Plenlum Publishers: New York
  3. ^ Thompson, D'Arcy Wentworth. "Max Wilhelm Carl Weber, 1852-1937." 'Obituary Notices of Fellows of the Royal Society.' The Royal Society: 1938.
  4. ^ a b c d e f Whitten et al.: "One or More Extinctions from Sulawesi, Indonesia?". Conservation Biology, 1987
  5. ^ a b c d e Cruz, Tess. "Adrianichthys kruyti: Duckbilled Buntingi". www.fishbase.org. Accessed April 23, 2007.
  6. ^ Christopher Scharpf; Kenneth J. Lazara (15 June 2019). "Order BELONIFORMES (Needlefishes)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 24 July 2019.
  7. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Adrianichthys". Catalog of Fishes. California Academy of Sciences. Retrieved 24 July 2019.
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