Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: schuncki: Named for Alba García, the daughter of the second author..
More on authors: Costa & DeLuca.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Tropical
South America: Anauerapucu River drainage, lower Amazonas River basin in northern Brazil.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.4 cm SL con đực/không giới tính; (Ref. 86535)
Short description
Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng): 8-9; Tia mềm vây hậu môn: 11 - 13. Can be diagnosed from all other species of the subgenus Melanorivulus by the following characters: snout pointed in lateral view; 12 rows of scales around the caudal peduncle; bright green bars on the flank and caudal fin in males, flank dark brown with small light gray spots on ventral part in females; pelvic fin without dark gray or black anterior margin in females; and by the absence of red bars or dots arranged in chevron-like pattern on flank (Ref. 86535).
This species occurs generally near stream banks, in shallow places (5-50 cm) and sites where the water had high transparency. It usually inhabits lentic streams, but sometimes also near the bank of lotic streams, where the environment conditions resemble those of lentic water habitats. It was also found in the shallow parts of the Curiaú lake, a peculiar environment formed only during the rainy season (January to June) when Curiaú River overflows from its main channel. In the areas north of the Amazonas River, the streams were directly exposed to sunlight as they flow over a savanna vegetation region, characterized by the presence of the buriti palm Mauritia flexuosa, and the water was hyaline or slightly yellow; south of the Amazonas River, this species was always found close to the forest border, in lentic black water streams, with high water transparency. Both the northern and southern populations are often sympatric with the poeciliid Fluviphylax palikur, the cichlid Laetacara sp., juveniles of the erythrinid Hoplerythrinus uniteniatus and a great variety of lebiasinid species (Ref. 82137).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Costa, W.J.E.M. and A.C. De Luca, 2010. Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Tên thường gặpCác synonym ( Các tên trùng)Trao đổi chấtCác động vật ăn mồiĐộc học sinh tháiSự tái sinh sảnChín muồi sinh dụcĐẻ trứngTổng số cá thể đẻ trứngSự sinh sảnCác trứngEgg development
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các tài liệu tham khảoNuôi trồng thủy sảnTổng quan nuôi trồng thủy sảnCác giốngDi truyềnElectrophoresesDi sảnCác bệnhChế biếnNutrientsMass conversion
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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=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
