Pollimyrus castelnaui (Boulenger, 1911)

Dwarf stonebasher

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

Classification	Actinopterygii \| Osteoglossiformes \| Mormyridae
Synonyms	Marcusenius castelnaui, ... more
Common names	Dwerg-klipstamper, Kääpiönuijakala, Rypoun castelnaův, ... more

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Image of Pollimyrus castelnaui (Dwarf stonebasher)

Picture by Mertens, P.

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Main reference

Gosse, J.-P. 1984. (Ref. 3203)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 7.0 cm SL male/unsexed; (Ref. 7248)

Environment

Demersal; freshwater

Climate / Range

Tropical; 11°S - 21°S

Africa: Okavango basin and upper Zambezi River. Also from the Kafue and Cunene Rivers and northern areas of Lake Malawi (Ref. 7248).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 18; Anal spines: 0; Anal soft rays: 22 - 26. Both caudal peduncle and caudal fin have rounded lobes.

Inhabits dense vegetation along margins of rivers and floodplain lagoons (Ref. 7248). Often found in lagoons and backwaters in shallow water just underneath the surface vegetation (Ref. 13337). Feeds on aquatic insect larvae including a large component of Chironomidae (Ref. 13337).


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

Human uses
Fisheries: of no interest; aquarium: potential


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

Tools
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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 (10 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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