Taxonomic Remarks
This species may be synonymous with Potamotrygon motoro (Müller & Henle, 1841), and is tentatively accepted as valid on the basis of a single specimen from the Pedreira river that differs slightly in coloration, following Rosa (1985a). Reproductive biology unknown. Additional reference: Compagno & Cook (1995).
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系統多様性指数 (参照 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). |
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栄養段階 (参照 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
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回復力 (参照 120179) |
非常に低い, 14年以上の倍増期間の最小個体群 (Assuming Fec<10). |
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漁業の脆弱性 (Ref. 59153) |
Moderate to high vulnerability (52 of 100). 🛈 |