Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Crenicichla: Latin, crenulatus = cut, clipped + Greek, kichle = wrasse (Ref. 45335); mandelburgeri: Named for Darío Mandelburger, Paraguayan co-coordinator of the Proyecto Vertebrados del Paraguay 1992-1999,.
More on author: Kullander.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Subtropical
South America: río Paraná basin.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.8 cm SL con đực/không giới tính; (Ref. 94256); 8.3 cm SL (female)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 20 - 23; Các vây lưng mềm (tổng cộng) : 10 - 12; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 8 - 10; Động vật có xương sống: 35 - 37. Similar to C. mucuryna (Brazil) and C. niederleinii (Paraná River) by the presence in young specimens of numerous narrow vertical bars along the side and which are replaced in adults by an irregular dark horizontal band. This species is distinguished by having a low number of scales in a lateral row 44-56 (vs. 57-63 in C. mucuryna and 56-65 in C. niederleinii. Differs from C. jaguarensis (Paraná River) by the presence of numerous narrow vertical bars in young specimens, lateral band in adults 2-3 scales wide and running close to upper lateral line vs. 1-1½ scales wide and distinctly separated from upper lateral line; its suborbital stripe usually short and narrow and individual spots making up the stripe recognizable vs. stripe wide, long and almost uniformly pigmented. Differs from C. jupiaensis (upper Paraná River) by lower jaw prognathous, vs. jaws isognathous; preopercular margin serrated vs. smooth; by colour pattern; C. jupiaensis not developing a lateral band. Differs from C. haroldoi (upper Paraná River) by caudal blotch present and distinct, vs. absent or indistinct; preopercle serrated vs. not serrated; black dots marking lateral line scales absent vs. present. Differs from C. yaha (Urugua-í basin) and C. iguassuensis (Iguazú basin), by the dark lateral band along the side vs. a row of dark blotches along the middle of the side. Differs from coastal species C. maculata, C. punctata, C. lacustris, C. tingui, and C. iguapina by larger scales in the E1 row, 44-56 vs. 56-75 (Ref. 80386).
Collected with electrofishing from rapids in a large stream, 5-10 m wide, to 1 m deep; water turbid and brownish; rocks came from road building; slope of rapids was about 10°. Associated fauna include Crenicichla lepidota (Cichlidae), Ancistrus sp. and Rineloricaria sp. (Loricariidae), Bryconamericus sp. (Characidae), Heptapterus mustelinus and Rhamdia quelen(Heptapteridae). All other collection sites were small, shallow brown-water streams up to about 3 m wide; varying velocity and transparency; bottom of sand and stones; and, generally absent vegetation, mostly sampled in unfavorable high water conditions in the month of February. Associated species here were generally typical forest stream species such as species of Astyanax and Bryconamericus, H. mustelinus, Rineloricaria sp., Rhamdia quelen, Oligosarcus paranensis (Characidae), Apareiodon sp., C. lepidota, and Gymnogeophagus cf. caaguazuensis (Cichlidae) (Ref. 80386).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Kullander, S.O., 2009. Crenicichla mandelburgeri, a new species of cichlid fish (Teleostei: Cichlidae) from the Paraná river drainage in Paraguay. Zootaxa 2006:41-50. (Ref. 80386)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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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=0.00813 (0.00354 - 0.01865), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
