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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); cooperi: The specific epithet is given in honour of Barry J. Cooper, renowned collector and breeder of killifish, for his significant contributions to the field study of Nothobranchius and to the killifish hobby in general; a noun in genitive (Ref. 117281).
Eponymy: Barry J Cooper is an American aquarist who collects and breeds killifish. [...] (Ref. 128868), visit book page.
Περιβάλλον: περιβάλλον / κλιματική ζώνη / εύρος βάθους / εύρος διανομής
Οικολογία
; Γλυκού νερού Πελαγικό(ά); pH range: 6.2 - 6.4. Tropical; 24°C - 28°C (Ref. 117281)
Africa: upper reaches of Mansa River, tributary of Luapula River, and seasonal Lufimba system, flowing into Lake Bangeulu, in Zambia (Ref. 117281).
Μέγεθος / Βάρος / Ηλικία
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 2.6 cm SL αρσενικό/απροσδιόριστο; (Ref. 117281)
Σύντομη περιγραφή
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 14 - 16; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 14 - 16; Σπόνδυλοι: 26 - 27. Diagnosis: Nothobranchius cooperi belongs to the Nothobranchius brieni species group (Ref. 117281). With the exception of N. rosenstocki and N. sainthousei, it is distinguished from all other species of that group by having broad orange, vs. red brown, posterior scale margins on the trunk and anal fin, with a uniform orange-red margin, vs. light blue, yellow, red-brown or black margin (Ref. 117281). It is distinguished from N. sainthousei by having an anal fin that is uniform orange-red with an irregular to regular, light blue-green zone close to the base, vs. orange-brown spots and orange-brown margin, and a wider, more prominent light blue marginal band to the caudal fin; head length 32.5-36.2% of standard length vs. 25.1-29.3%; prepectoral length 32.5-36.2% of standard length vs. 25.1-29.4%; and head width 70-77% of its depth vs. 79-86% (Ref. 117281). It is distinguished from N. rosenstocki by having a prepelvic length 48.8-51.9% of standard length vs. 45.1-49.0%; and a head depth 75-77% of head length vs. 78-84% (Ref. 117281). Furthermore, the species is characterised by a caudal peduncle length 1.2-1.3 times its depth, compared to 1.4-1.5 times in N. sainthousei, and 1.6 times in N. rosenstocki (Ref. 117281).
It is a micropredator, feeding on small aquatic crustaceans, worms, insect larvae and other zooplankton (Ref. 117281). The species appears to qualify as vulnerable (B1bii) according to IUCN criteria (Ref. 117281).
Κύκλος ζωής και συμπεριφορά ζευγαρώματος
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Nagy, B., B.R. Watters, P.D.W. van der Merve, F.P.D. Cotterill and D.U. Bellstedt, 2017. Nothobranchius cooperi (Teleostei: Cyprinodontiformes): a new species of annual killifish from the Luapula River drainage, northern Zambia. African Journal of Aquatic Science 42(3):201-218. (Ref. 117281)
Κατάσταση Κόκκινου Καταλόγου IUCN (Ref. 130435: Version 2025-2 (Global))
Απειλή για τον άνθρωπο
Harmless
Ανθρώπινες χρήσεις
Εργαλεία
Ειδικές εκθέσεις
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Διαδικτυακές πηγές
Εκτιμήσεις βάσει μοντέλων
Δείκτης φυλογενετικής ποικιλότητας (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00461 - 0.02608), 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 (Αναφ.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ευπάθεια στην αλιεία (Ref.
59153): Low vulnerability (10 of 100).
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