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Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); serrano: The specific epithet serrano from Portuguese, means inhabitant of the "serras"; an allusion to the high plateau where the headwaters of Rio Uruguay are located (Ref. 27672).
More on authors: Buckup & Reis.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Temperate
South America: upper Uruguay River basin in Brazil.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 5.4 cm SL पुल्लिंग / अलिंग; (Ref. 27672)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 11 - 12; ऐनल सौफट रेज़: 9; जानवरों की रीड़ का जोड़: 36. Is uniquely diagnosed by the presence of 10 to 14 oblique bars on the sides of the body, extending posteroventrally from the lateral line and independent of the 8 or 9 dorsal transverse bars which are usually present in species of Characidium. Is also distinguished from other species of Characidium from southern Brazil, except C. pterostictum, by the spotted caudal fin. From C. pterostictum, it is easily distinguished by the number (12) of series scales around the caudal peduncle (14 in C. pterostictum). Fourth ray of pectoral fin ray longest, not reaching or just reaching to pelvic fin origin. Third or fourth ray of pelvic fin longest, reaching area between anal opening and anal fin origin (Ref. 27672).
All specimens collected were from middle courses of medium-sized rivers with rocky and muddy bottoms and moderate to strong water current (Ref. 27672).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Buckup, P.A. and R.E. Reis, 1997. Characidiin genus Characidium (Teleostei, Characiformes) in Southern Brazil, with description of three new species. Copeia 1997(3):531-548. (Ref. 27672)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
|
a=0.01023 (0.00450 - 0.02327), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
ट्रॉफिक स्तर (संदर्भ 69278) |
3.4 ±0.3 se; based on size and trophs of closest relatives |
मछली पकड़ने की भेद्यता (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |