Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
>
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist; caudisquamatus: A combination of the Latin words cauda, for tail, and squama, for scale; this name refers to the high number of circumpeduncular scales in this species relative to the other members of the genus in South Africa (Ref. 95448).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical; 25°C - 26°C (Ref. 95448); 28°S - 29°S
Africa: known only from Nseleni and Mhlatuze rivers in South Africa (Ref. 95448).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 25.5 cm SL mâle / non sexé; (Ref. 95448)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 20 - 22; Épines anales: 0; Rayons mous anaux: 27 - 28; Vertèbres: 44. Diagnosis: Marcusenius caudisquamatus can be distinguished from its congeners by the following characters: middle body depth 23.8-25.9% of standard length; dorsal fin length 15.4-19.2% of standard length; anal fin length 23.0-24.9% of standard length; pre-dorsal length 61.7-66.7% of standard length; pre-anal length 60.7-62.8% of standard length; caudal peduncle depth 40.4-51.7% of its length; dorsal fin rays 20-22; anal fin rays 27-28; scales around caudal peduncle 19; lateral line scales 72-73; anterior gill rakers (4)+(5-6), total anterior gill rakers 9-10; posterior gill rakers (6)+(9), total posterior gill rakers 15; conical teeth on upper/lower jaws 5-5 (Ref. 95448).
Water current was moderate to fast in sections of the rivers where Marcusenius caudisquamatus was collected (Ref. 95448).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Maake, P.A., O. Gon and E.R. Swartz, 2014. Descriptions of three new species of Marcusenius Gill, 1862 (Teleostei: Mormyridae) from South Africa and Mozambique. Zootaxa 3780(3):455-480. (Ref. 95448)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menacé (EN) (B1ab(iii)+2ab(iii)); Date assessed: 06 December 2016
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
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=0.00562 (0.00251 - 0.01261), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
