Classification / Names
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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Pristellinae
Etymology: Hemigrammus: Greek, hemi = half + Greek, gramma = letter, signal (Ref. 45335); changae: Named for the late Fonchii Ingrid Chang Matzunaga, a Peruvian ichthyologist.
Eponymy: Fonchii Ingrid Chang Matzunaga (1963–1999) was a Peruvian ichthyologist of both Japanese and Chinese ancestry. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Nước ngọt pelagic-neritic. Tropical
South America: río Madre de Dios and río Mamoré basins, upper río Madeira basin, in southeastern Peru and Bolivia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Max length : 3.2 cm SL con đực/không giới tính; (Ref. 120197)
Occurs in slow-flowing streams at "aguajales" (wetlands dominated by Mauritia flexuosa palms) which typically possess black water, a large amount of decayed organic matter, and are typically shallow. The type locality was a formerly a gold mining area that is in the process of recovery due to the implantation of a private conservation concession. This species is also recorded from oxbow lakes and, in Bolivia, from lakes and streams at the llanos (seasonally flooded savannahs). It is sympatric, and in some localities syntopic with Hemigrammus lunatus, but the latter species is more commonly found in floodplain lakes from white water rivers, a type of habitat where H. changae is apparently uncommon (Ref. 120197).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Ota, R.P., F.C.T. Lima and M.H. Hidalgo, 2019. A new species of Hemigrammus Gill (Characiformes: Characidae) from the río Madeira basin in Peru and Bolivia. Zootaxa 4577(2):335-347. (Ref. 120197)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Các nghề cá: không ích lợi (thú vị)
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Estimates based on models
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00496 - 0.02912), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Tài liệu tham khảo
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 (10 of 100).
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