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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Ladigesia: After Dr. Ladiges, ichthyologist, 1935; he studied killifishes.
Eponymy: Dr Werner Ladiges (1910–1984) was a German zoologist, ichthyologist and aquarist who was Director and Professor, Zoologisches Staats Instituut und Zoologisches Museum, Hamburg. [...] Erhard Roloff (1903–1980) was a German aquarist and amateur ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Géry.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά); pH range: 6.0 - 7.0; dH range: ? - 10. Tropical; 22°C - 26°C (Ref. 1672)
Africa: Kasewe in the Gbangbaia basin (small stream systems west of Jong) in Sierra Leone (Ref. 2880, 81279). Also appears to be present in Du River (Ref. 13331).
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 3.1 cm SL αρσενικό/απροσδιόριστο; (Ref. 2880)
Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 16 - 17. Diagnosis: small, elongate fish with incomplete lateral line; scaleless dorsal part (of about at least 3 scale rows wide on both sides) from behind the opercle to the adipose fin; parietal fontanella open (Ref. 2880, 81279).
Body shape (shape guide): fusiform / normal.
Monospecific.
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. (Ref. 2880)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
αλιεία: Εμπορικό(ά); Ενυδρείο: Εμπορικό(ά)
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00484 - 0.02371), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Αναφ.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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