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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: crixas: Named for its type locality, the Crixas River basin, which is an allusion to the indigenous tribe of people Crixas, formerly inhabiting this region.
More on author: Costa.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; गहराई सीमा 0 - 1 m (Ref. 59346). Tropical
South America: Crixás Açu River drainage of the Araguaia River basin in Brazil.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 2.7 cm SL पुल्लिंग / अलिंग; (Ref. 59346); 2.6 cm SL (female)
Collected from the shallowest parts of a small stream, about 10-20 cm deep, where the larger specimens are found in places with more dense aquatic vegetation and juveniles in places more exposed to sunlight. It is a typical stream of central Brazil, locally known as Vereda or Buritizal (i.e. streams dominated by the buriti-palm Mauritia flexuosa L.), with orange clay bottom, in open vegetation of the Brazilian Cerrado and water was clear, with pH 5.3 (Ref. 59346).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Allen, G. and S. Bailey, 2011. Phoenix Islands: Reef fishes of the Phoenix Islands, Central Pacific Ocean. Atoll Res. Bull (589):83-118. (Ref. 59346)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
साधन
विशेष रिपोर्ट
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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
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a=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
ट्रॉफिक स्तर (संदर्भ 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
लौटाव (संदर्भ 120179) |
ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.). |
मछली पकड़ने की भेद्यता (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |