Gilchristella aestuaria, Gilchrist's round herring : fisheries, bait

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Gilchristella aestuaria (Gilchrist, 1913)

Gilchrist's round herring
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Gilchristella aestuaria   AquaMaps   Data sources: GBIF OBIS
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Gilchristella aestuaria
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Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Ehiravidae (River sprats)
Etymology: Gilchristella: Because of John Gilchrist, father of the South African ichthyology; Cape Town, 1925.

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

marin; eau douce; saumâtre; amphidrome. Subtropical; 25°S - 36°S, 17°E - 34°E (Ref. 188)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Africa: Lake Piti, Mozambique, along south and east coasts of South Africa to Saldanha Bay (Ref. 188, 3509), and as far north as the Olifants River on the west coast (Ref. 7248), possibly to mouth of Orange River (Ref. 188, 3259). Also reported from Madagascar (Ref. 3509, 13333), but its presence is not confirmed; it is probably based on confusion with Sauvagella madagascariensis, while Gilchristella aestuaria does not occur in Madagascar (Ref. 33664). Reported occurrence in India (Ref. 32693) is of dubious validity (Ref. 33664). Currently a single species, but at least two forms, possibly different species, are known (Ref. 52193).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 2.8, range 2 - 3 cm
Max length : 9.0 cm SL mâle / non sexé; (Ref. 52193); âge max. reporté: 6 années (Ref. 7248)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 14-15; Épines anales 0; Rayons mous anaux: 20. Diagnosis: Body rather compressed, belly rounded, with 6 to 9 thin unkeeled pre-pelvic scutes followed by an equally thin pelvic scute, all with slender ascending arms; no post-pelvic scutes; snout pointed, lower jaw a little prominent, with a single row of fine teeth in each jaw; posterior supra-maxilla paddle-shaped; gillrakers 39 to 76, gillrakers small but present on posterior face of third epibranchial; pelvic fin with i-7 finrays, under or a little before dorsal fin origin (Ref. 188). Resembles Spratelloides species or juvenile Etrumeus and Dussumieria, but pre-pelvic scutes present; other clupeids occuring in same area have keeled pre-pelvic and post-pelvic scutes (Ref. 188).

Biologie     Glossaire (ex. epibenthic)

Occurs in the sea, but found mostly in estuaries; also found in landlocked brackish and freshwater lagoons (Ref. 93596), also rivers and lakes (Ref. 188). Maximum size 10 cm (Ref. 4967). Entire life cycle is completed in the estuary (Ref. 32693). Breeds throughout the year with a peak in spring and early summer (Ref. 7248, 52193). Maturity may be attained within the first or second year and an age of up to 5 or 6 years is recorded (Ref. 7248, 52193). Feeds chiefly on zooplankton by filtering or selecting individual organisms from the water column (Ref. 7248, 52193). It can tolerate salinities under 4 ppt and of up to 52.6 ppt (Ref. 32693). Utilized fresh or dried and salted (Ref. 12484).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

A semelparous species that grows to maturity and spawns in one year (Ref. 34361).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p. (Ref. 7248)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 01 March 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: pêcheries vivrières; appât: usually
FAO - Publication: search | FishSource |

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record

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=0.00955 (0.00477 - 0.01914), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  3.1   ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (tm=0.5).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Catégorie de prix (Ref. 80766):   Low.