Pollimyrus adspersus (Günther, 1866)

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Osteoglossiformes \| Mormyridae
Synonyms	Mormyrus adspersus, Marcusenius adspersus, ... more
Common names	Pikkunuijakala, Rypoun západní, ... more

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Main reference

Bigorne, R. 1990. (Ref. 2915)
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Size / Weight / Age

Max length : 8.6 cm SL male/unsexed; (Ref. 2915)

Environment

Demersal; freshwater; pH range: 5.0 - ?

Climate / Range

Tropical; 22°C - 24°C (Ref. 12468)

Africa: Limited to the coastal fringes of the Volta basins. Seems to have replaced Pollimyrus isidori (continental) in the coastal basins or in the lower reaches of rivers in West Africa. Also known from the Congo basin, Democratic Republic of the Congo and Cameroon (Ref. 3203) and Mono River in Togo and Ouémé in Benin (Ref. 28663).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 19 - 22; Anal spines: 0; Anal soft rays: 24 - 29. Body depth 2.7-3.3 x SL. Head 3.7-4.7 x SL. Eye diameter 3.4-4.6 x head length. Dorsal fin origin slightly behind anal fin origin. Dorsal and anal fins length 4.1-5.0 and 3.2-4.0 x SL. Dorsal fin base 0.7-0.9 of anal fin base. Pectorals 2.0-2.5 x longer than pelvic fins and 0.8-1.1 x head length. Caudal peduncle height 2.8-4.2 x higher than long. Generally dark brown color with first rays of dorsal and often of the anal fins darkened.

Affinities: P. isidori.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (11 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Binohlan, Crispina B.

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Page last modified by : elaxamana, 15 July 2009

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