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Alosa sphaerocephala (Berg, 1913)

Agrakhan shad
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Alosa sphaerocephala
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | 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: Berg.

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

; salobre pelágico. Temperate; 48°N - 36°N, 46°E - 56°E (Ref. 188)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Former USSR and Asia: Caspian Sea.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm SL macho / no sexado; (Ref. 188); common length : 17.0 cm SL macho / no sexado; (Ref. 188)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 3; Radios blandos dorsales (total) : 13 - 14; Espinas anales: 3; Radios blandos anales: 17 - 19. Body shape `shad-like'; upper and lower head profiles strongly rounded. Gill rakers rather long and thin, equal to or usually longer than gill filaments. Teeth well developed in both jaws. Resembles A. saposchnikowii which has a more pointed head, the upper and lower jaw profiles straight; A. caspia has more gill rakers and A. brashnikovi is more slender and `herring-like'.

Biología     Glosario (por ej. epibenthic)

Confined to semi-saline waters; non-anadromous, not entering fresh water. Spawns in the eastern part at the north end of Caspian Sea, from mid-May to end of June, mostly when temperatures are 18-20°C, salinities 8-10 ppt and at depths of around 3 m. The young move southward late in autumn, later than any other clupeids.

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador | 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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 17 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: pesquerías de subsistencia
FAO - Publication: search | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores
Ecology
Ecología
Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproducción
Maturities
Fecundities
Spawnings
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Egg(s)
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Larva
Dinámica larvaria
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Anatomy
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Tipo de natación
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Diseases / Parasites
Toxicities (LC50s)
Genetics
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Stamps, coins, misc.
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References
Referencias

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Fuentes de Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Expediente Zoológico

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).
Nivel trófico (Ref. 69278):  3.7   ±0.4 se; based on size and trophs of closest relatives
Resiliencia (Ref. 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (21 of 100).
Price category (Ref. 80766):   Low.