Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Physoschistura: Greek, physa = bellows + Greek, schizein = divided + Greek, oura = tail (Ref. 45335); absumbra: Named from the mythology of the Wa people, the predominant ethnic minority along the Sinoburmese border in this region. Derived from Latin words absum, to be absent; and umbra, shadow, an allusion to the Wa’s mythic ancestors, from whom it is said to cast no shadows. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Asia: Nangunhe River, Salween drainage in Yunnan, China.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 116525)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 13 - 14; Anal soft rays: 8; Vertebrae: 36 - 38. Physoschistura absumbra is easily diganosed from all species of Physoschistura by the absence of a suborbital lobe and by having a complete lateral line and a continuous lower jaw. It further differs from all congeners by the following characters: head depth at nape 13-14% SL; head length dorsally 23-25% SL, laterally 26-28% SL; body depth 15-17% SL; caudal-peduncle depth 13--4% SL; flank with 9-12 regular bars; basicaudal bar complete; and a maximum adult size of about 44 mm SL (Ref. 116525).
Collected from a small tributary, about 2 m wide and 30 cm deep at the sampling site, running into
the Nangunhe River. Not encountered in the mainstem of the Nangunhe River. Co-occurred with two nemacheilids, Schistura cryptofasciata and S. disparizona, both were found in the mainstem (Ref. 116525).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Endruweit, M., 2017. A new Physoschistura from a Salween affluent in western Yunnan (Teleostei: Nemacheilidae). Zootaxa 4263(2):378-386. (Ref. 116525)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00347 - 0.01512), 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): 2.9 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
