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Heteromormyrus ansorgii (Boulenger, 1905)

Slender stonebasher
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Heteromormyrus ansorgii
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Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | 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).
Eponymy: Dr William John Ansorge (1850–1913) was an English explorer and collector who was active in Africa in the second half of the 19th century. [...] (Ref. 128868), visit book page.
More on author: Boulenger.

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

; sötvatten bottenlevande. Tropical; 11°S - 21°S

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | 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 / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL hane/ej könsbestämd; (Ref. 52193)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 18 - 19; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 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).

Biologi     Ordlista (t.ex. 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 Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

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)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 24 July 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Födosammansättning
Födointag
Food rations
Predatorer
Ecology
Ekologi
Population dynamics
Tillväxtparametrar
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Life cycle
Reproduktion
Könsmognad
Maturity/Gills rel.
Fecundity
Lek
Spawning aggregations
Ägg
Egg development
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos
Anatomy
Gälyta
Brain
Otolith
Physiology
Body composition
Nutrients
Syreförbrukning
Swimming type
Simhastighet
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetik
Heterozygosity
Ärftlighet
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Outreach
Medarbetare
References
referenser

Verktyg

Special reports

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Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoological Record

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 (0.00244 - 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).
Trofisk nivå (Ref. 69278):  3.2   ±0.40 se; based on food items.
Resiliens (Ref. 120179):  Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).