Algeria country information

Common names: North African shad
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Alosa finta algeriensis: 'Algeria' (Ref. 11601). Known from Mediterranean coast (Ref. 10538, 13696). It enters permanent rivers in eastern Algeria, including Cheliff (Ref. 10538), Mazafran (Ref. 10538), Seybouse (Ref. 10538) and Lake Oubeira (Ref. 10538). Also Ref. 1878.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ag.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kartas, F., 1991
National Database:

Common names from other countries

Alžeeria aloosa, Sábalo rifeño, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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).
More on author: Regan.

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

marinhas; Água doce; estuarina; anádromo (Ref. 59043). Subtropical

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

Africa: along North African coasts of Mediterranean Sea from the Rif Peninsula in Morocco to northern Tunisia (Ref. 10538), also entering permanent rivers in Algeria and Tunisia (Ref. 10538, 59043). A landlocked population exists in Lake Ichkeul, Tunisia (Ref. 59043). In Europe, it is restricted to western Sardinia, Italy (Ref. 59043).

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 43.5 cm SL macho/indeterminado; (Ref. 10538); 50.0 cm SL (female)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 0; Raios dorsais moles (total): 18-22; Espinhos anais 0; Raios anais moles: 20 - 25; Vértebras: 53 - 57. Diagnosis: This species is distinguished from other species of Alosa entering freshwater in the Mediterranean basin by: dorsal profile convex; 40-60 thin gill rakers in individuals larger than 200 mm standard length, with 25 to 38 on its lower part; and no teeth on palatine (Ref. 10538, 59043).

This species undertakes anadromous breeding migrations from the sea, where it spends most of its life, into the freshwater sections of rivers; it can also live permanently in brackish water (Ref. 10538). Males migrate upriver at 3-4 years, females at 4-5 years; it starts entering rivers when temperatures reach 14-18°C, mainly in May, and spawning commences when temperature rises above 20°C in May and June (Ref. 59043). The spawners return downstream immediately after spawning, but many die after spawning; most juveniles migrate to river mouth in first summer and remain at sea until they mature (Ref. 10538, 59043). Spawning occurs close to estuaries in fresh and brackish water (Ref. 59043). In the marine and brackish water habitats, this shad consumes small fishes, such as species of Engraulis, Sardina, and Sardinella, and small benthic crustaceans, mainly isopods and amphipods (Ref. 10538).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Most juveniles migrate to river mouth in first summer and remain at sea until they mature. Males migrate upriver at 3-4 years, females at 4-5. They start entering rivers when temperatures reach 14-18°C, mainly in May to spawn when temperatures rises above 20°C. After spawning, spent individuals migrate back to sea, but many die before they do (Ref. 59043).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Ameaçada (EN) (B2ab(i,ii,iii,iv,v)); Date assessed: 17 May 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

Pescarias:

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (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).

Nível Trófico (Ref. 69278): 3.9 ±0.5 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Alosa algeriensis Regan, 1916