Classification / Names
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Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); paraxena: From the Greek παράξενος (paraxenos), mea which means strange, in reference to the species’ unusual
appearance. An adjective, Latinized (-us, -a, -um)..
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल. Subtropical
Asia: West River, Pearl River drainage in Guangxi, China.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm SL पुल्लिंग / अलिंग; (Ref. 115556)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 12; ऐनल सौफट रेज़: 8; जानवरों की रीड़ का जोड़: 37 - 39. Schistura paraxena differs from all species of Schistura by having conspicuous peduncular crests along its dorsal and ventral extremities and a plain beige body coloration consisting of crests brownish gray and a pale spot medially at caudal-fin base. It can be further distinguished by having the following characters: dorsal fin with 8½ branched rays; pectoral fin with 11-12 rays; pelvic fin with 9 rays; 37-38 vertebrae; predorsal length 50-52% SL; caudal-peduncle length 17-18% SL (88-92% HL; 5.6-5.8 times SL); lateral line complete; breast naked; predorsal area scaled; and upper lip not notched (Ref. 115556).
Feeds on nymphs of the stonefly family Perlidae (Ref. 115556).
Life cycle and mating behavior
Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा
Endruweit, M., 2017. A new Schistura from the Pearl River in Guangxi, China (Teleostei: Nemacheilidae). Zootaxa 4277(1):144-150. (Ref. 115556)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00311 - 0.01538), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
