वर्गीकरण / नाम
आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल; खारा पिलाजिक. Tropical; 1°N - 2°S
South America: Amazon drainage (from perhaps mouth of Rio Branco at Goiaçu, Rio Solimões, Rio Juruá and as far as the Río Ucayali in Peru). (There are possibly two species, judging from specimens in the Museu de Zoológia, Sao Paulo).
आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 14.5 cm SL पुल्लिंग / अलिंग; (Ref. 50591); common length : 8.5 cm SL पुल्लिंग / अलिंग; (Ref. 188)
पृष्ठीय रीढ़ (सम्पूर्ण) : 0; गुदा कांटा: 0; ऐनल सौफट रेज़: 45 - 54. Belly profile strongly convex (almost circular from throat to anus), 30 to 33 scutes. Lower jaw projecting, mouth directed almost vertically upward; no toothed hypo-maxillary bone between hind end of pre-maxilla and lower bulge of maxilla blade; eye large. Pectoral fins high on body; anal fin origin behind dorsal fin base; upper caudal fin lobe ending in a filament in larger fishes (Ref. 188).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Occurs in rivers but perhaps entering slightly saline waters near the mouth of Amazon (but this part of its range is not well documented). Compared with the `flying' characoid fishes (e.g. Thoracocharax), the vertically aligned scute arms in Pristigaster and the rather small pectoral muscles show that flight by vibration of the pectoral fins is almost certainly impossible. This species having been caught along with Thoracocharax raises the question of mimicry.
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: कोई रुचि बग़ैर
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.00667 - 0.04322), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 3.4 ±0.5 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).
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