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Sierrathrissa leonensis ThysvandenAudenaerde, 1969

West African pygmy herring
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Image of Sierrathrissa leonensis (West African pygmy herring)
Sierrathrissa leonensis
Picture by FAO


Ivory Coast (Côte d'Ivoire) country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Bia River (Ref. 2849, 28136, 81269) and Tano River (Ref. 272). Also Ref. 81631.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/iv.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Gourène, G. and G.G. Teugels, 2003
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Sierrathrissa: Latin, serra = saw + Greek, thrissa, -es = shad (Ref. 45335);  leonensis: The generic and specific names make allusion to the known geographic range of this genus and species (Ref. 121309).

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

; Água doce pelágico(a,os,as); intervalo de profundidade 0 - 8 m (Ref. 188).   Tropical; 18°N - 0°N

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: rivers of West Africa (Ref. 188), from Senegal to Cameroon (Ref. 3509), including Senegal, Gambia, Bia and Niger rivers (Ref. 81269), and Wouri and Sanaga rivers in Cameroon (Ref. 51193, 81631); also in the man-made lakes Kainji in Nigeria and Volta in Ghana (Ref. 188, 81269).

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm ?, range 2 - ? cm
Max length : 3.5 cm SL macho/indeterminado; (Ref. 130826); common length : 2.3 cm SL macho/indeterminado; (Ref. 188)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 12 - 15; Espinhos anais: 0; Raios anais moles: 16 - 20; Vértebras: 36 - 41. Diagnosis: Small, slender fishes, easily mistaken for the juveniles of Pellonula (Ref. 188). Belly rounded, with 0-10 minute pre-pelvic scutes, without arms, supporting a low membranous keel, post-pelvic scutes similar, the keel more apparent, and a W-shaped scute located at the pelvic fin bases; lower gillrakers 13-16; pelvic insertion well before dorsal fin, with 1 unbranched and 5-6 branched rays; anal fin beginning under dorsal fin base (Ref. 188, 2849, 81269, 81631, 120915, 121309). It commmonly occurs with Pellonula, which has pelvic fins with 1 unbranched and 7 branched rays, normal scutes and the pelvic fin insertion more or less below the dorsal fin origin (Ref. 188).

Biologia     Glossário (ex. epibenthic)

A riverine species, but also in man-made lakes (Ref. 188). Schooling in open waters and at about 2 to 8 m in Lake Kainji, rising to about 30 cm from the surface at night in Lake Volta (Ref. 188, 3034). It feeds on plankton, especially cladocerans and rotifers (Ref. 188, 120915). It breeds at about 1.8-2.0 cm standard length (Ref. 188).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 19 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless




Utilização humana

Pescarias: espécies comerciais
FAO(Publication : search) | FishSource |

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Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
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Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
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Egg(s)
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Anatomy
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Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
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Ciguatera cases
Stamps, coins, misc.
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References
Referências

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Descarregue XML

Fontes da internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00193 - 0.01305), b=3.13 (2.91 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.1   ±0.30 se; based on food items.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (tm<1).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Categoria de preço (Ref. 80766):   Low.