>
Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Bagrus: Mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp.) (Ref. 45335).
More on author: Lönnberg.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल. Tropical; 4°S - 6°S
Africa: restricted to the single type specimen from the Lubosi River (Luala tributary, lower Congo River basin) (Ref. 78218). Presence in the Lulua (Ref. 46243) unconfirmed and doubtful (Ref. 3236, 78218).
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 24.3 cm SL पुल्लिंग / अलिंग; (Ref. 3236)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 1; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 8 - 9; ऐनल सौफट रेज़: 11. Head smooth above; snout broadly rounded; band of premaxillary teeth 6 times as long as broad, close to and nearly as broad as the crescentic band of vomerine teeth; maxillary barbel 2.25 times head length, reaching beyond pelvic fins; nasal barbel 0.4 times head length; inner mandibulary barbel 0.43 times head length; outer mandibulary barbel 0.86 times head length; occipital processus narrow and short, widely separated from the first interneural bone; longest branched ray of dorsal fin 0.71 times head length; dorsal spine very weak; adipose fin 4 times longer than high, much longer than the base of the dorsal fin; caudal fin deeply forked, both lobes with long filaments; pectoral spine weak with the outer half articulated (Ref. 52141).
Coloration: brown above with irregularly scattered small black dots which are most numerous on the caudal and adipose fin, but are also seen on the back and sides; no dots below lateral line; whitish below (Ref. 52141).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Risch, L.M., 1986. Bagridae. p. 2-35. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3236)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
साधन
विशेष रिपोर्ट
XML डाउनलोड करें
इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ 82804) |
PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
ट्रॉफिक स्तर (संदर्भ 69278) |
3.7 ±0.9 se; based on size and trophs of closest relatives |
लौटाव (संदर्भ 120179) |
ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Assuming Fec>10,000). |
मछली पकड़ने की भेद्यता (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |