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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); alabamae: From the word alabamae, meaning from Alabama (Ref. 10294).
More on authors: Jordan & Evermann.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
Θαλασσινό(ά); Γλυκού νερού; Υφάλμυρο pelagic-neritic; ανάδρομο (Ref. 51243). Subtropical; 44°N - 24°N, 96°W - 81°W
Western Central Atlantic: Gulf of Mexico (northern part, from the Mississippi delta eastward to the Choctawhatchee River in Florida; also in rivers from Iowa to Arkansas and across to West Virginia). Status of threat from Ref. 11858.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 51.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 188); common length : 42.5 cm SL αρσενικό/απροσδιόριστο; (Ref. 188); μεγ. αναφερόμενη ηλικία: 4 έτη (Ref. 12193)
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. Body moderately compressed, belly with distinct keel of scutes. Lower jaw steeply rising within mouth; no teeth present at front of jaws; upper jaw with a distinct notch. The only other shad of the Gulf of Mexico has only 20 to 24 gill rakers. Closely resembles A. aestivalis and A. pseudoharengus of Atlantic coasts, but in them the lower jaw rises very steeply in the mouth (Ref. 188).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Forms schools. Ascends rivers and streams to spawn in spring or early summer, the young presumably descending in autumn. Marketed mostly fresh.
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Spawns in freshwater in spring or early summer, ascending rivers and streams, the young presumably descending in autumn.
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: Version 2025-1)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00330 - 0.01518), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 2.7 ±0.28 se; based on food items.
Ελαστικότητα (Αναφ.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (tmax=4).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (45 of 100).
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