Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Sống nổi và đáy. Subtropical
South America: Colhue Huapi lake, Chubut, Negro, Limay and Colorado rivers, Tulumaya stream and Puente de Fierro lake in Argentina.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 59.1 cm TL (female)
Short description
Hình thái học | Sinh trắc học
Tia mềm vây hậu môn: 8 - 11. Differs from its congeners by the mouth isognathous or prognathous (vs. hypognathous); infraorbital 2 rectangular, completely serrated ventrally (vs. irregularly shaped, smooth or partially serrated ventrally); palatine with long dentigerous process (vs. short dentigerous process); dentigerous arm of premaxilla about 2.5 times height of ascending process (vs. about 2 times or less that height); small process for insertion of ligamentum primordium on maxilla; long coronoid process, reaching posteriorly the level of the posterior border of dentary (vs. not reaching posterior border of dentary); long anguloarticular bone, with well-developed, posterodorsally directed postarticular process and mandibular sensory canal completely enclosed in bone, hyoid artery in a groove on posterior surface of dorsal hypohyal ( vs. hyoid artery piercing dorsal hypohyal); dorsal border of anterior ceratohyal only smoothly concave. Differs further by the following combination of characters: quadrate-mandibular articulation just behind orbit; posterior border of maxilla reaching middle of orbit or further backwards, at posterior half of infraorbital 2 or further backwards; 3 predorsal bones; one supernumerary spine on first dorsal pterygiophore (rarely none); 3rd or 4th dorsal fin spine the longest; 7-9 trisegmented pterygiophores in dorsal fin; upper jaw length 130-160% snout length and 35-45% HL; head length 30-38% SL; pectoral and pelvic fins of similar length, being 45-60% HL and 55-75% body depth; 14-17 pectoral fin rays; 8-11 anal fin rays; 45-49 caudal fin rays; procurrent spur present (Ref. 55324).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
López-Arbarello, A., 2004. Taxonomy of the genus Percichthys (Perciformes: Percichthyidae). Ichthyol. Explor. Freshwat. 15(4):331-350. (Ref. 55324)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các công cụ
Special reports
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Các nguồn internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [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).
Mức dinh dưỡng (Ref.
69278): 4.2 ±0.2 se; based on diet studies.
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).