رده بندی / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Mystus: Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335); nanus: The specific epithet nanus is a masculine noun meaning dwarf in Latin, in reference to its diminutive size when compared with Mystus vittatus..
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين نزديك كف زي. Tropical
Asia: Sri Lanka.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 10.6 cm SL جنس نر / بدون خواص جنسي; (Ref. 116163)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 1; شعاع نرم باله پشتي (کل) : 7; شعاع نرم باله مخرجي: 11; مهره ها: 35. Mystus nanus can be diagnosed from all congeners from India and Sri Lanka except
M. bleekeri, M. carcio, M. tengara, and M. vittatus by having two distinct cream stripes along the entire length of the flank (vs. stripes absent on body). It is distinguished from the four named striped species by the combination of the following characters: eye diameter (19-22 % HL); maxillary barbel extending up to or slightly beyond origin of anal fin; distal margin of dorsal fin rounded; adipose-fin base length 25.3-31.4 % SL; serrae along posterior margin of pectoral fin 9-12; sclera blackish grey in preserved specimens; and posterior cranial fontanelle ending about one eye-diameter anterior to the base of the supraoccipital process (Ref. 116163).
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Sudasinghe, H., R. Pethiyagoda, K. Maduwage and M. Meegaskumbura, 2016. Mystus nanus, a new striped catfish from Sri Lanka (Teleostei: Bagridae). Ichthyol. Explor. Freshwat. 27(2):163-172. (Ref. 116163)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
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=0.00832 (0.00384 - 0.01800), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
