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Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335); kasaiensis: The species is named after the Kasai River to which it appears to be endemic; an adjective (Ref. 122092).
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: Kasai River, Congo River basin, in Democratic Republic of the Congo and Angola (Ref. 122092).
Size / Weight / سن
بلوغ: Lm ? range ? - ? cm
Max length : 22.6 cm SL جنس نر / بدون خواص جنسي; (Ref. 122092)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 27 - 29; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 12 - 13. Diagnosis: Distichodus kasaiensis is distinguished from D. affinis, D. altus, D. decemmaculatus, D. noboli, D. notospilus and D. teugelsi by the higher number of lateral line scales, 57-65 vs. 37-46; from D. antonii by the inferior mouth vs. terminal, the higher number of dorsal-fin rays, 27-29 vs. 21-25, and the lower number of dark vertical bars, 6-8 vs. 9-14; from D. fasciolatus by the higher number of dorsal-fin rays, 27-29 vs. 24-26, and the lower number of dark vertical bars, 6-8 vs. 13-20; from D. langi by the lower number of lateral line scales, 57-65 vs. 68-70, and the lower number of vertical bars, 6-8 vs. 13; from D. lusosso by the inferior mouth vs. terminal, and the short snout vs. elongated; from D. maculatus by the absence of dark blotches all over the body; and from D. sexfasciatus by the higher number of dorsal-fin rays, 27-29 vs. 24-25, the higher number of teeth in the outer row of the upper and lower jaw, 15-25 and 16-26 vs. 12-14 on both jaws, and the greenish body colouration vs. orange-reddish (Ref. 122092). It is distinguished from its most similar species D. atroventralis by having more dorsal-fin rays, 27-29 vs. 22-24, fewer teeth on the upper jaw, 15-25 vs. 18-36 (overlap due to positive allometry), and a longer dorsal-fin base, 24.9-33.7% of standard length vs. 20.1-28.8% (overlap due to positive allometry); and from D. ingae by having fewer lateral line scales, 57-65 vs. 69-73, more dorsal-fin rays, 27-29 vs. 26, and a smaller prepectoral distance, 21.4-30.0% of standard length vs. 29.1-30.2% (overlap due to negative allometry) (Ref. 122092).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Moelants, T., J. Snoeks and E. Vreven, 2018. Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-1)
خطر برای انسان ها
Harmless
استفاده انسانی
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].
Bayesian length-weight: a=0.01660 (0.00685 - 0.04019), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
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