South Africa country information

Common names: Glassnosed anchovy, Orangemouth glassnose, Oranjebek-glasneus
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: no regulations | Ref: van der Elst, R., 1993
Uses: live export: yes;
Comments: Known from Indian Ocean south to Port Alfred (Ref. 189, 5430, 12484). Large numbers are netted in discoloured water off Durban from August to November (Ref. 12484).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Whitehead, P.J.P. and T. Wongratana, 1986
National Database:

Common names from other countries

أنشوفة-شارب بِلَّوْر, 黄吻棱鳀, Anchois-moustache cristal, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Engraulidae (Anchovies) > Coiliinae
Etymology: More on authors: Gilchrist & Thompson.

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

marina; brackvatten; djupintervall 0 - 50 m (Ref. 189). Tropical; 2°S - 40°S, 20°E - 51°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Indian Ocean: from the east coast of Africa, Kenya to Natal, South Africa, and Madagascar.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 22.0 cm TL hane/ej könsbestämd; (Ref. 5430)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 13 - 14; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 34 - 44; Ryggkotor: 43 - 45. Diagnosis: Body compressed, belly with 16-19 pre-pelvic and 8-12 post-pelvic scutes, a total of 24-30 keeled scutes from isthmus to anus; maxilla long, reaching beyond base of first pectoral finray; first supra-maxilla a minute oval; lower gillrakers 18-24, the serrae on the inner edge in distinct clumps in larger fishes; anal fin with 3-4 unbranched rays and 31-40 branched rays; a dark blotch behind upper part of gill opening; inside of gill cavity bright orange (Ref. 189). This species overlaps the range of different other species of Thryssa, of which five have a similar maxilla, very small first supra-maxilla and overlapping gillraker counts; however of these five species, T. gautamiensis, T. malabarica, T. purava and T. whiteheadi all have the tip of the snout at or above the level of the centre of the eye, and the last two, plus T. stenosoma, have at least 38 branched anal finrays (Ref. 189).

A coastal, pelagic species (Ref. 28), apparently common along shore and in estuaries (Ref. 5430). Presumably schooling, occurring inshore and entering estuaries and lagoons, perhaps used as nursery areas, but moving further out in rainy seasons when coastal waters are freshened up by rivers (Ref. 189). It feeds on plankton organisms (Ref. 28). May be caught using ringnets (Ref. 5213). Generally marketed fresh, may be salted or dried (Ref. 5284).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Hata, H. and H. Motomura, 2019. Two new species of Thrissina (Clupeiformes: Engraulidae) from the northern Indian Ocean and redescription of Thrissina vitrirostris (Gilchrist and Thompson 1908). Ichthyol. Res. 67(1):155-166 (Ref. 128122)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 09 March 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell; bete: usually

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 24.6 - 29.3, mean 27.4 (based on 294 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00513 (0.00307 - 0.00858), b=3.15 (3.01 - 3.29), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.5).

Fishing Vulnerability (Ref. 59153): Low vulnerability (24 of 100).

Price category (Ref. 80766): Medium.

Thrissina vitrirostris (Gilchrist & Thompson, 1908)