Acanthocobitis zonalternans (Blyth, 1860)
  Fish   Balitoridae   Acanthocobitis


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Paracanthocobitis zonalternans (Blyth , 1860)

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Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Nemacheilidae ()
Etymology: zonalternans: The specific name is derived from the Latin zonatus (girdle or a belt) and alterno , to be variegated or with two alternate colors.   More on author: Blyth .

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; pH range: 6.8 - 7.8; dH range: 8 - 18.   Tropical; 24°C - 26°C (Ref. 13614 )

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Asia: Salween River drainage in Thailand and Myanmar.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 7.8 cm SL male/unsexed; (Ref. 4832 )

Short description Morphology | Morphometrics

Paracanthocobitis zonalternans differs from all its congeners by combination of the following characters: lateral line incomplete, ending near insertion of dorsal fin; dorsal fin with 9½-10½ branched rays; presence of axillary pelvic lobe; series of black blotches, usually without black stripe but with faint dusky stripe, along side of body, usually ending near dorsal-fin insertion; circular black spot on upper margin of caudal-fin base; black pigment extending from lateral stripe onto pectoral-fin base; absence of marmorated pattern anterior to origin of dorsal fin; dorsal saddles short, rarely connecting to lateral blotches; and upper caudal fin with 8 (occasionally 7) branched rays (Ref. 117351 ).

Biology     Glossary (e.g. epibenthic)

Found in a variety of streams from river mainstreams to small brooks. Apparently avoids mountain streams with steep gradient and prefer shallow riffles over small pebbles above which its marmorated color pattern makes it inconspicuous from the surface. Also collected on a muddy to sandy substrate with a few stones and numerous gastropod shells in depths ranging from 0.05 to 0.5 m.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Singer, R.A., J.M. Pfeiffer and L.M. Page , 2017. A revision of the Paracanthocobitis zonalternans (Cypriniformes: Nemacheilidae) species complex with descriptions of three new species. Zootaxa 4324(1):85-107. (Ref. 117351 )

IUCN Red List Status (Ref. 120744 )

  Least Concern (LC)  ; Date assessed: 22 January 2010

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest FAO(Publication : search ) | FishSource |

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Internet sources

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00661 (0.00312 - 0.01398), b=3.01 (2.83 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  2.8   ±0.3 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 1,000). Vulnerability (Ref. 59153 ):  Low vulnerability (21 of 100) .

Entered by Torres, Armi G. Modified by Torres, Armi G. Fish Forum
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