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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); 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
Ökologie
seewasser; süßwasser; brackwasser; anadrom (Ref. 51243). Subtropical; 45°N - 23°N, 100°W - 82°W (Ref. 188)
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).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 50.0 cm SL Männchen/unbestimmt; (Ref. 188); common length : 37.5 cm SL Männchen/unbestimmt; (Ref. 188); max. veröff. Gewicht: 1.7 kg (Ref. 4699); max. veröff. Alter: 4 Jahre (Ref. 12193)
Rückenflossenstacheln (insgesamt) : 0; Afterflossenstacheln: 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).
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
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven
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 Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja
Tools
Zusatzinformationen
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Estimates based on models
Preferred temperature (Ref.
123201): 23.1 - 24.6, mean 23.9 °C (based on 126 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00371 - 0.01125), b=2.99 (2.85 - 3.13), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.63 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (tmax=4).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
