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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: biamnicus: Derived from the Latin bi, meaning two, and amnicus, meaning inhabitant of a river, in allusion to the fact that the species is distributed in both the Iguaçu and Tibagi basins. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar dasar (demersal). Tropical
South America: tributaries to rio Iguaçu, in Santa Catarina and Paraná States, and to the rio Tibagi, Paraná State, both in rio Paraná basin, Brazil.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL jantan/; (Ref. 93039)
Duri punggung (Keseluruhan (total)) : 2; duri punggung lunak (Keseluruhan (total)) : 6 - 7; Duri dubur: 1; Sirip dubur lunak: 5; vertebrata, bertulang belakang: 28. Can be diagnosed from its congeners by having shorter pectoral-fin spine length (18.6-21.3 vs. 21.4-30.4% SL in remaining species). Additional characters useful for its identification include lower caudal peduncle (7.6-9.0 vs. 9.3-11.0 in Otothyropsis marapoama and 9.7-11.5% SL in Otothyropsis piribebuy), deeper caudal peduncle (7.6-9.0 vs. 6.2-7.6% SL in Otothyropsis polyodon); and dorsal-fin spinelet triangular in shape (vs. spinelet rectangular or quadrangular) (Ref. 93039).
Commensal with midge larvae (Chironomidae) which are attached to the gill opening or more rarely to the posterior process of the cleithrum (Ref. 93039).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Calegari, B.B., P. Lehmann A. and R.E. Reis, 2013. Two new species of cascudinhos of the genus Otothyropsis (Siluriformes: Hypoptopomatinae) from the rio Paraná basin, Brazil. Zootaxa 3619(2):130-144. (Ref. 93039)
Status IUCN Red List (Ref. 130435: Version 2024-2)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Daya lenting (Ref.
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).