Classificatie / 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
Ecologie
; zoet water benthopelagisch. Tropical
Africa: only known from the Pama River, a small tributary of the Nyong River in Cameroon (Ref. 93722).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm SL mannelijk / geslacht onbekend; (Ref. 93722)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 10 - 13; Anale stekels: 0; Anale zachte stralen: 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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
