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Siluriformes (Catfishes) >
Auchenoglanididae (Flatnose catfishes)
Etymology: Parauchenoglanis: Greek, para = near + Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); megalasma: Name from Greek ‘megalasma’ derived from ‘mega’ meaning large and ‘melasma’ meaning black spot, referring to the distinct large blotches along the lateral line present in this species.
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. Tropical
Africa: Angola.
Size / Weight / سن
بلوغ: Lm ? range ? - ? cm
Max length : 7.3 cm SL جنس نر / بدون خواص جنسي; (Ref. 132425)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
شعاع نرم باله پشتي (کل) : 7; شعاع نرم باله مخرجي: 9; مهره ها: 32 - 33. This species is distinguished from its congeners ahli, altipinnis, balayi, buettikoferi, longiceps, monkei, pantherinus, punctatus by the presence of vertical rows of blotches (vs. vertical rows of spots or bands in monkei, zebratus) and further differs from these species by a partly round snout (vs. bluntly triangular); differs from stiassnyae with truncated caudal fin (vs. rounded), dorsolaterally positioned eyes (vs. dorsally), and spotted fins (vs. unspotted pectoral, pelvic, and anal fins); it differs from all other species except ernstswartzi by its body having vertical rows of blotches with smaller blotches between them (vs. body with vertical rows of spots or bars and spots between them in ngamensis, lueleensis or absent background spots in patersoni, dolichorhinus, luendaensis, chiumbeensis); differs further differentiated from ernstswartzi by the vertical rows of blotches not extending onto adipose fin (vs. rows extending onto adipose fin), eyes situated dorsolaterally (vs. eyes situated dorsally), and deeper body depth, 18.2%-19.9% SL (vs. shallow body depth, 15.0%-17.4% SL); differs luendaensis by the spotted head and fins (vs. unspotted); differs further from luendaensis, chiumbeensis by the relatively long predorsal length, 40.7%-41.9% SL (vs. shorter, 37.9%-40.1% SL in luendaensisand 35.6%-40.8% SL in chiumbeensis); differs further chiumbeensis by its longer adipose fin, 35.6%-36.9% SL (vs. shorter, 26.0%-34.9% SL) (Ref. 132425).
Cross section: oval.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Sithole, Y., E.J.W.M.N. Vreven, P.H.N. Bragança, T. Musschoot and A. Chakona, 2024. Nine in one: integrative taxonomic evidence of hidden species diversity in the widespread Zambezi grunter, Parauchenoglanis ngamensis (Siluriformes: Auchenoglanididae), from southern and south-central Africa. Zool. J. Linn. Soc. 202:1-33. (Ref. 132425)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-1)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (مرجع
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
جهندگی (مرجع
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).
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