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Nilgiri Mystus

Hemibagrus punctatus (Jerdon 1849)

Diagnostic Description

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Distinguished from its congeners by a unique combination of the following characters: head length 28.1-29.6% SL, head depth 11.9-14.3% SL, depth of the caudal peduncle 8.8-9.9% SL, eye diameter 13.8-15% HL (Ref. 41209).
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Christine Marie V. Casal
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Morphology

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Dorsal spines (total): 2; Dorsal soft rays (total): 7; Analsoft rays: 12 - 13; Vertebrae: 46
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Biology

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Inhabits rapid rivers and streams (Ref. 41236).
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Armi G. Torres
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Importance

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fisheries: minor commercial
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Hemibagrus punctatus

provided by wikipedia EN

Hemibagrus punctatus,[3] or Nilgiri mystus, is a species of fish in the family Bagridae. It was first described by Jerdon in 1849.[4][5] It is endemic to east-flowing rivers in the Western Ghats of India. Of these, the species is likely only found in the Kaveri River; records from the Krishna River may actually be of H. maydelli. However, one record from the west-flowing Bharatappuzha River has been tentatively assigned to this species.[6] The last record of this species was in 1998, and it may have experienced a population decline of nearly 100%; thus, IUCN categorizes the species as critically endangered (possibly extinct). It is threatened by habitat degradation by excess siltation, excess fishing, and dam construction.[1] However, based on several specimens caught by fishermen between 2011 and 2012 that likely belong to this species, as well as testimonies from local fishers, moderate populations of this species may still be extant in the region.[6]

No subspecies are listed in the Catalogue of Life.[4]

References

  1. ^ a b Raghavan, R.; Ali, A. (2011). "Hemibagrus punctatus". IUCN Red List of Threatened Species. 2011: e.T172430A6890986. doi:10.2305/IUCN.UK.2011-1.RLTS.T172430A6890986.en. Retrieved 20 November 2021.
  2. ^ a b Talwar, P.K. and A.G. Jhingran (1991) Inland fishes of India and adjacent countries. Volume 2., A.A. Balkema, Rotterdam.
  3. ^ a b c Eschmeyer, W.N., Editor (2008) Catalog of fishes. Updated database Internet version of April 2008., Catalog databases as made available to FishBase in April 2008.
  4. ^ a b Bisby F.A.; Roskov Y.R.; Orrell T.M.; Nicolson D.; Paglinawan L.E.; Bailly N.; Kirk P.M.; Bourgoin T.; Baillargeon G.; Ouvrard D. (red.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Retrieved 24 September 2012.
  5. ^ Froese, Rainer; Pauly, Daniel (eds.) (2014). "Hemibagrus punctatus" in FishBase. September 2014 version.
  6. ^ a b Ali, A.; Dahanukar, N.; Kanagavel, A.; Phillip, S.; Raghavan, R. (2013-07-26). "Records of the endemic and threatened catfish, Hemibagrus punctuates from the southern Western Ghats with notes on its distribution, ecology and conservation status". Journal of Threatened Taxa. 5 (11): 4569–4578. doi:10.11609/jott.o3427.4569-78. ISSN 0974-7907.
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Hemibagrus punctatus: Brief Summary

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Hemibagrus punctatus, or Nilgiri mystus, is a species of fish in the family Bagridae. It was first described by Jerdon in 1849. It is endemic to east-flowing rivers in the Western Ghats of India. Of these, the species is likely only found in the Kaveri River; records from the Krishna River may actually be of H. maydelli. However, one record from the west-flowing Bharatappuzha River has been tentatively assigned to this species. The last record of this species was in 1998, and it may have experienced a population decline of nearly 100%; thus, IUCN categorizes the species as critically endangered (possibly extinct). It is threatened by habitat degradation by excess siltation, excess fishing, and dam construction. However, based on several specimens caught by fishermen between 2011 and 2012 that likely belong to this species, as well as testimonies from local fishers, moderate populations of this species may still be extant in the region.

No subspecies are listed in the Catalogue of Life.

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