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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); ernstswartzi: Named after Dr. Ernst Swartz, who collected specimens used in the description of six new species in this study. This dedication is in recognition of his pioneering and extensive exploration of the Kwanza and adjacent river systems, including the upper Kasai sub-basin.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
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.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 10.6 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. This species is distinguished from its congeners ahli, altipinnis, balayi, buettikoferi, longiceps, monkei, pantherinus, punctatus, zebratus by having the eyes situated dorsally, i.e. high on the head towards its upper edge, and round snout profile (vs. eyes situated dorsally and bluntly triangular snout profile); differs from stiassnyae with truncated caudal fin (vs. rounded), spotted fins (vs. unspotted pectoral, pelvic and anal fin), vertical rows of blotches interspaced by reticulated pattern (vs. irregularly scattered large blotches and absence of reticulated pattern on the flank), in addition to shorter barbels, with external mandibular barbel not reaching the tip of the pectoral-fin spine (vs. barbels long, with external mandibular barbel reaching beyond the tip of the pectoral-fin spine); differs from all other species of the P. ngamensis species group
by its round snout profile (vs. bluntly triangular in ngamensis, lueleensis, patersoni, dolichorhinus, poikilos, chiumbeensis, luendaensis or partly round in megalasma.), eyes situated dorsally (vs. eyes situated dorsolaterally in ngamensis, lueleensis, patersoni, dolichorhinus, poikilos, chiumbeensis, luendaensis, megalasma), black spots at the base of the pectoral fin (vs. absent in ngamensis, lueleensis, patersoni, dolichorhinus, poikilos, chiumbeensis, luendaensis, megalasma), black blotches (eye size) forming six to seven vertical rows extending onto adipose fin (vs. five to seven vertical rows of black spots or blotches not extending onto adipose fin in ngamensis, lueleensis, patersoni, dolichorhinus, poikilos, chiumbeensis, luendaensis, megalasma), and vermiculated pattern on the background (vs. spots on the background in ngamensis, lueleensis, poikilos or no background spots in patersoni, dolichorhinus, chiumbeensis, luendaensis; differs further from ngamensis, lueleensis, patersoni, dolichorhinus, chiumbeensis, luendaensis by the heavily spotted barbels (vs. unspotted); differs further distinguished from dolichorhinus by wider interpectoral distance, 19.8%-20.6% SL (vs. narrow, 12.4%-18.2% SL); differs further from dolichorhinus, lueleensis, poikilos by deeper body depth, 18.2%-19.9% SL (vs. shallow, 11.6%-14.0% SL in dolichorhinus, 15.0%-17.4% SL in lueleensis, and 16.0%-16.2% SL in poikilos) (Ref. 132425).
Cross section: oval.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | 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 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00219 - 0.01260), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
3.5 ±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.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |