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Heteromormyrus ansorgii (Boulenger, 1905)

Slender stonebasher
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Heteromormyrus ansorgii
Picture by Mertens, P.


Mozambique country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the Buzi and Pungwe rivers (Ref. 52128, 52193). Also Ref. 4537.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mz.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Skelton, P.H., 2001
National Database:

Common names from other countries

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Heteromormyrus: Greek, heteros = other + Greek mormyros = a kind of fish similar to Boops sp. (Ref. 45335).
  More on author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный демерсальный.   Tropical; 11°S - 21°S

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Africa: Cuanza River in Angola (Ref. 52193, 128501), also Cunene, Okavango, upper Zambezi, Buzi and Pungwe rivers, and an isolated population occurs in the Ruo River (lower Zambezi system) in Malawi (Ref. 52193). In the Congo basin known from the Kwango in Angola (Ref. 11970). Possibly also in the Inkisi River (lower Congo) (Ref. 12818, 120641), Lufira and Luwombwa rivers (upper Congo basin) (Ref. 12818) but these need confirmation.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL самец/пол неопределен; (Ref. 52193)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 18 - 19; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 24 - 26. Diagnosis: dorsal fin origin nearer caudal fin base than tip of snout; origin of dorsal fin behind origin of anal fin; dorsal fin shorter than anal fin; chin (mental swelling) present but feebly developed; dorsal fin with 19 rays, anal fin with 24-26 rays (Ref. 52193).

биология     глоссарий (например epibenthic)

Found in rocky habitats in flowing waters (Ref. 7248, 52193). Feeds on small aquatic invertebrates (Ref. 7248, 52193) such as insect larvae (Ref. 7248).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор | соавторы

Sullivan, J.P.: Hopkins, C.D., S. Pirro, R. Peterson, A. Chakona, T.I. Mutizwa, C. Mukweze Mulelenu, F.H. Alqahtani, E. Vreven and C.B. Dillman, 2022. Mitogenome recovered from a 19th century holotype by shotgun sequencing supplies a generic name for an orphaned clade of African weakly electric fishes (Osteoglossomorpha, Mormyridae). ZooKeys 1129:163-196. (Ref. 128501)

Статус Красного Списка МСОП (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [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).
Trophic level (Ref. 69278):  3.2   ±0.40 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).