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इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).

Issue
Known from three specimens in collections, this species may be endangered because of high endemism (Rosa & Menezes, 1996). Reproductive biology unknown. Additional references: Walschaerts (1987), Compagno & Cook (1995).

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; pH range: 6.0 - 6.8. Tropical; 20°C - 25°C (Ref. 13614)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

South America: Xingu River basin (Xingu and Fresco rivers).

Length at first maturity / आकार / वज़न / Age

Maturity: L_m 35.0, range 30 - 40 cm
Max length : 111 cm WD पुल्लिंग / अलिंग; (Ref. 111518); अधिकतम प्रकाशित वज़न: 17.0 kg (Ref. 111518)

Buried in sand during day, hunting for benthic invertebrates during night (Ref. 13614).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक : Carvalho, Marcelo | सहयोगीयो

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN Red List Status (Ref. 130435)

वेदनीय, आई यु सी ऐन लाल सूची देखें। (VU) (A2bcd); Date assessed: 25 March 2022

CITES

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; जलजीवालय: सार्वजनिक लजीवालय

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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Generation time: 10.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

लौटाव (Ref. 120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (tm=3-4; Fec=2 (in captivity)).

Fishing Vulnerability (Ref. 59153): High vulnerability (58 of 100).

Price category (Ref. 80766): Medium.

Potamotrygon leopoldi Castex & Castello, 1970