Ikan bertulang rawan (sharks and rays) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).
More on author: Günther.
Issue
One of the largest species, reaching 30 kg in weight. Reproductive biology relatively unknown. References: Castex (1966), Castello (1975), Compagno & Cook (1995), Britski et al. (1999).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar dasar (demersal). Temperate
South America: Paraná-Paraguay (including Cuiabá river in Brazil), Uruguay basins and Argentina (Ref. 58839). Formerly classified as data deficient in the 2000 IUCN red list of threatened species (Ref. 36508).
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 95.0 cm WD jantan/; (Ref. 36687); Berat maksimum terpublikasi: 208.0 kg (Ref. 72380)
Life cycle and mating behavior
Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva
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)
Status IUCN Red List (Ref. 130435)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: perikanan swasembada
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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
Daya lenting (Ref.
120179): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Assuming Fec<10).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).