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Paracanthocobitis zonalternans
Picture by Ratmuangkhwang, S.
Pictures | Google image
Picture by Ratmuangkhwang, S.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
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.
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)
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Asia: Salween River drainage in Thailand and Myanmar.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.2 cm TL male/unsexed; (Ref. 125890); max. published weight: 21.48 g (Ref. 125890)
Max length : 12.2 cm TL male/unsexed; (Ref. 125890); max. published weight: 21.48 g (Ref. 125890)
Short description Identification keys | 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).
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. 130435: Version 2024-2)
Least Concern (LC) ; Date assessed: 22 January 2010
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: of no interest
FAO - Publication: search | FishSource |
More information
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Body composition
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Human related
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Aquaculture systems
Aquaculture profiles
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Stamps, coins, misc.
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00518 - 0.01275), b=3.01 (2.88 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 1,000).
Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).