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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Nannopetersius: Latin, nannus = small + Peters, 1877, naturalist, expeditionary in Asia; mutambuei: This species is dedicated to Professor Mutambue Shango, who collected fishes from the Inkisi River basin in 1985 and 1986 and deposited them at the MNHN and MRAC (Ref. 79819).
Environment: milieu / climate zone / depth range / 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: only known from the Inkisi River upstream of Sanga dam (lower Congo River basin), in Democratic Republic of the Congo (Ref. 79819, 120641).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 79819)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 10; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 25 - 27. Diagnosis: Nannopetersius mutambuei is distinguished from its two congeners by the following combination of characters: lateral line with 28-30 scales and 27-30 pored scales, vs. 30-35 and 32-35 in N. ansorgii and 28-33 and 27-33 in N. lamberti; 5.5-6.5 scales between the origin of the dorsal fin and the lateral line, vs. 6.5 in N. ansorgii and 6.5-7.5 in N. lamberti; 10-13 gill rakers on the ceratobranchial of the first branchial arch, vs. 14-17 in N. ansorgii and 10-12 in N. lamberti; length of caudal peduncle 135.7-151.9% of its depth, vs. caudal peduncle nearly as long as deep in N. ansorgii and N. lamberti; snout length 26.6-29.2% of head length, vs. 18.4-23.0% in N. lamberti; eye diameter 31.7-39.6% of head length, vs. 46.0-56.2% in N. lamberti; and no broad dark band in life, however present in preserved specimens, and no additional black spots on caudal and distal blackish band on anal fin, vs. a faint dark medio-lateral band, in preserved specimens, hardly visible anteriorly but better marked on the caudal fin and no additional black spots on caudal and anal fin in N. ansorgii, and a broad, black, medio-lateral band in life as well as preserved specimens, distal part of both upper and lower caudal-fin lobe with a black spot and distal margin of anal fin blackish in N. lamberti (Ref. 79819).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Wamuini Lunkayilakio, S. and E. Vreven, 2008. Nannopetersius mutambuei (Characiformes: Alestidae), a new species from the Inkisi River basin, Democratic Republic of Congo. Ichthyol. Explor. Freshwat. 19(4):367-376. (Ref. 79819)
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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 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).
