Alosa chrysochloris, Skipjack shad : fisheries, gamefish

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Alosa chrysochloris (Rafinesque, 1820)

Skipjack shad
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Native range | All suitable habitat | Point map | Year 2100
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Alosa chrysochloris   AquaMaps   Data sources: GBIF OBIS
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Image of Alosa chrysochloris (Skipjack shad)
Alosa chrysochloris
Picture by The Native Fish Conservancy

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Clupeiformes (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) > Alosinae
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);  chrysochloris: From the words chryso, meaning gold and chloris, meaning green (Ref. 10294).  More on author: Rafinesque.

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

; marin; eau douce; saumâtre; anadrome (Ref. 51243).   Subtropical; 45°N - 23°N, 100°W - 82°W (Ref. 188)

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

Western Central Atlantic: Gulf of Mexico (from Corpus Christi in Texas eastward to Pensacola in Florida; also in rivers, e.g. Mississippi and Ohio Rivers to Minnesota, Wisconsin and Pennsylvania).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm SL mâle / non sexé; (Ref. 188); common length : 37.5 cm SL mâle / non sexé; (Ref. 188); poids max. publié: 1.7 kg (Ref. 4699); âge max. reporté: 4 années (Ref. 12193)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Épines anales 0. Belly with a distinct keel of scutes. Lower jaw not rising steeply within mouth; teeth prominent at front of lower jaw. Lower gill rakers slender. Back bluish green, abruptly changing to silver on flank; no dark spot at shoulder. Closely resembles A. mediocris of Atlantic coasts, which has no upper and weak lower jaw teeth, a dark shoulder spot and the body deeper than head length (Ref. 188).

Biologie     Glossaire (ex. epibenthic)

Generally present in coastal marine water (Ref. 37039). Enter brackish- and freshwaters, but perhaps not always or not consistently anadromous (Ref. 188), although strongly migratory within rivers (Ref. 10294) , mostly in fast-flowing water where they are renowned for leaping. Feed on small fishes, the juveniles on insects. Spawning times and places not certain. Adults serve as hosts to the larvae (glochidia) of the economically valuable pearly mussel (Fusconaia ebena) of the Mississippi basin (Ref. 188).

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

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 120744)

  Préoccupation mineure (LC) ; Date assessed: 13 March 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: intérêt commercial mineur; pêche sportive: oui
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 23.1 - 24.6, mean 23.9 (based on 126 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00390 - 0.01120), b=2.99 (2.84 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.9   ±0.63 se; Based on food items.
Résilience (Ref. 120179):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tmax=4).
Vulnérabilité (Ref. 59153):  Moderate to high vulnerability (46 of 100) .
Catégorie de prix (Ref. 80766):   Low.