Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); rosenstocki: Named for John Rosenstock of Hellerup, Denmark, who collected this new species.
Eponymy: John Rosenstock (d: 1945) is a Danish psychologist and killifish aquarist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά). Tropical
Africa: Luapula River system (upper Congo River basin) in Zambia (Ref. 53985).
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm TL αρσενικό/απροσδιόριστο; (Ref. 53985); 3.9 cm TL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Μαλακές ραχιαίες ακτίνες (συνολικά) : 15 - 17; Μαλακές εδρικές ακτίνες: 16 - 17. Diagnosis: This species is distinguished from its congeners by the following combination of unique characters: 15-17 dorsal fin rays; 16-17 anal fin rays; male coloration with irregular red reticulation contrasting with light blue background color on the entire body. The frontal and superior portion of the head red; anal fin with a red distal part. The caudal fin base is red spotted, with distal part transparent light blue. The anterior part of base of dorsal fin has distinct black spots and hardly visible papillae. Sides of female are not marked like the males, but with narrow brown scale margins (Ref. 53985).
Populations of this species have been found scattered over a large area in the Luapula River basin; specimens have been found mainly in shallow and vegetated parts of small, slow-flowing rivers which empty into swamps; the species was also collected from so-called "dembos" or water-filled depressions; all habitats were temporary and only filled with water during the wet season and for a short period afterwards, the bottom substrate of which were usually silt or clay with a high humus content (Ref. 53985).
Distinct pairing (Ref. 205).
Valdesalici, S. and R.H. Wildekamp, 2005. A new species of the genus Nothobranchius (Cyprinodontiformes, Nothobranchiidae) from Luapula River basin, Zambia. aqua, J. Ichthyol. Aquat. Biol. 9(3):89-96. (Ref. 53985)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.01122 (0.00472 - 0.02669), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (tm=0.3-0.4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).