Sierrathrissa leonensis Thys van den Audenaerde, 1969

West African pygmy herring

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

Classification	Actinopterygii \| Clupeiformes \| Clupeidae
Synonyms	... more
Common names	西拉棱鲱, Salanpore, Sleďovka sierraleonská, ... more

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Image of Sierrathrissa leonensis (West African pygmy herring)

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Main reference

Whitehead, P.J.P. 1985. (Ref. 188)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 3.0 cm SL male/unsexed; (Ref. 188); common length : 2.3 cm SL male/unsexed; (Ref. 188)

Environment

Pelagic; freshwater; depth range 0 - 8 m

Climate / Range

Tropical; 18°N - 0°N

Africa: Senegal to Cameroon, apparently in both lower and upper reaches of rivers, but the latter only confirmed in the case of the Niger; also the man-made lakes Kainji (Nigeria) and Volta (Ghana).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 18; Anal spines: 0; Anal soft rays: 17 - 21. Small, slender fishes, easily mistaken for the juveniles of Pellonula. Pre-pelvic scutes minute, 4 to 10, without arms, supporting a low membranous keel, post-pelvic scutes similar, the keel more apparent. Pelvic fin insertion well before dorsal fin; anal fin beginning under dorsal fin base. Scales apparently absent except near tail. Jaws about equal, with small teeth.

Occurs in rivers but also in man-made lakes. Schools in open shallow waters, rising to about 30 cm at night in Lake Volta. Feeds on plankton, especially cladocerans.


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

Human uses
Fisheries: commercial


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 (tm<1)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (10 of 100)	Low

Entered by Binohlan, Crispina B.

Modified by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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