Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335); pamaense: This species is named after the river and the nearby village Pama, the collection locality of the types (Ref. 93722).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
Africa: only known from the Pama River, a small tributary of the Nyong River in Cameroon (Ref. 93722).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 93722)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 10 - 13; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 12 - 15. Diagnosis: Aphyosemion pamaense belongs to the subgenus Chromaphyosemion as it is characterized by the presence of two dark lateral bands in both sexes, these bands may disappear in males depending on the mood of the fish; the caudal fin is shaped with pronounced dorsal and ventral streamers in males; streamers are also present in the dorsal and anal fins; the species is also characterized by 9-14 dorsal rays, and 11-16 anal rays (Ref. 93722). It differs from all other Chromaphyosemion species by the following combination of characters observed in males: orange background of the unpaired fins, anal without any spots, orange throat, purple to blue-grey flanks (Ref. 93722).
It inhabits a small stream in the forest, about 3 m wide and 0.4 m deep with a muddy or sandy bottom (Ref. 93722). Other cyprinodontiforms species found in syntopy are Epiplatys infrafasciatus, Aphyosemion edeanum, and Procatopus similis (Ref. 93722).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Agnèse, J.-F., O. Legros, B. Cazaux and G. Estivals, 2013. Aphyosemion pamaense, a new killifish species (Cyprinodontiformes: Nothobranchiidae) from Cameroon. Zootaxa 3670(4):516-530. (Ref. 93722)
IUCN Red List Status (Ref. 130435)
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
