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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] This is a toponym; it refers to Lake Kainji, an artifical lake in lower Niger River, Nigeria, where the holotype was collected. (Ref. 128868), visit book page.
Issue
Exact species spelling should be kainjii as given by Lewis, 1974. Ita 1978 misspelled the name as kainji.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς). Tropical
Africa: only known from Lake Kainji, Nigeria (Ref. 3034, 13861).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 3034)
Very rare (Ref. 3034). Caught along the shore of the lake (Ref. 13861).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Lewis, D.S.C., 1974. An illustrated key to the fishes of Lake Kainji. Foreign and Commonwealth Office Overseas Development Administration, London. 105 p. (Ref. 3034)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
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=0.00562 (0.00244 - 0.01296), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
