Greece country information

Common names: Thracian shad, Thritsa, Θρίτσα
Occurrence: endemic
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Economidis, P.S., 1991
Importance: minor commercial | Ref: Economidis, P.S., 1991
Aquaculture: | Ref:
Regulations: protected | Ref: Economidis, P.S., 1991
Uses: no uses
Comments: Known from Vistonis Lake. Status of threat: Endangered (Ref. 41624); Critically endangered (CR A2ace; B1 ab(iii,v). Thought to be extinct but was reported by a fisherman in 2005 from Lake Vistonis. It is threatened by sewage, industrial effluents, alteration or destruction of spawning sites by agricultural development and increased salinity following the opening of a canal into the sea (Ref. 59043). Also Re. 113897.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kottelat, M., 1997
National Database:

Common names from other countries

希腊西鲱, Θρίτσα, Vistonisi aloosa, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Alosidae (Shads and Sardines)
Etymology: Alosa: Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335).

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

; zoet water pelagisch; standvastig. Temperate; 42°N - 41°N, 25°E - 26°E

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Europe: Lake Vistonis, Greece.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 17.0 cm SL mannelijk / geslacht onbekend; (Ref. 59043)

Korte beschrijving Morfologie | Morfometrie

Distinguished from its congeners entering freshwater of Mediterranean basin by having 78-97 gill rakers and well-developed teeth on palatine and vomer, especially in juveniles (Ref. 59043).

Landlocked, found in a shallow lake, of purely fresh water at its inland extremity and a brackish lagoon at the lower extremity; inhabits mostly the freshwater part. No data on its biology. This species is threatened by sewage, industrial effluents, alteration or destruction of spawning sites by agricultural development and increased salinity following the opening of a canal into the sea (Ref. 59043).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Kottelat, M., 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation. Biologia, Bratislava, 52/Suppl. 5:1-271. (Ref. 13696)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Ernstig bedreigd (CR) (A2ace; B1ab(iii,v)); Date assessed: 31 January 2006

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00370 - 0.01703), b=3.04 (2.87 - 3.21), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.6 ±0.4 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (11 of 100).

Alosa vistonica Economidis & Sinis, 1986