>
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist; altisambesi: Marcusenius altisambesi refers to the Upper Zambezi River, that is, the section of the Zambezi that ends at Victoria Falls; with 'sambesi' as a noun in apposition (Ref. 75962).
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি তলদেশ বিহারী. Tropical
Africa: upper Zambezi River system in Caprivi strip, including the lower Kwando River, and western Okavango System in Angola, Botswana and Namibia (Ref. 75962, 94473).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 19.5 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 75962)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 20 - 26; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 26 - 30. Diagnosis: Marcusenius altisambesi can be distinguished from its congeners by the following characters: scales around caudal peduncle 12-14; scales in linear series along the lateral line row 49-60; anal fin rays 26-30; dorsal fin rays 20-26; and body depth 20.1-32.8% of standard length (Ref. 75962). Electric organ discharge (EOD) with weak head-negative pre-potential in juveniles and females, sexual dimorphism in EOD waveform present in the 'summer' in the form of greatly increased EOD duration in sexually mature males of greater than about 12.5 cm standard length, but dimorphism not confirmed for specimens from Okavango (Ref. 75962).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Kramer, B., P. Skelton, H. van der Bank and M. Wink, 2007. Allopatric differentiation in the Marcusenius macrolepidotus species complex in southern and eastern Africa: the resurrection of M. pongolensis and M. angolensis, and the description of two new species (Mormyridae, Teleostei). J. Nat. Hist. 41(9-12):647-708. (Ref. 75962)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
Download XML
ইন্টারনেট সুত্র
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=0.01288 (0.00577 - 0.02877), b=2.88 (2.71 - 3.05), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
