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Alosa pseudoharengus (Wilson, 1811)

Alewife
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alosa pseudoharengus   AquaMaps   Data sources: GBIF OBIS
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Image of Alosa pseudoharengus (Alewife)
Alosa pseudoharengus
Picture by Scarola, J.F.

Common names from other countries

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);  pseudoharengus: From the words pseudo, meaning false and harengus, meaning herring (Ref. 10294).

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

marino; agua dulce; salobre; anadromo (Ref. 51243); rango de profundidad 5 - 145 m (Ref. 4639), usually 56 - 110 m (Ref. 5951).   Temperate; 55°N - 34°N, 93°W - 53°W (Ref. 86798)

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

North America: Atlantic coast from Red Bay, Labrador in Canada to South Carolina in USA; many landlocked populations exist. Individuals with access to ocean are anadromous, ascending coastal rivers during spring spawning migraitons. Native to Lake Ontario; introduced into other Great Lakes via Welland Canal (first taken in Lake Erie in 1931). Introduced elsewhere, including New River in West Virginia and Virginia, and upper Tennessee River system in Tennessee, USA.

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm ?, range 11 - ? cm
Max length : 40.0 cm SL macho / no sexado; (Ref. 7251); common length : 30.0 cm SL macho / no sexado; (Ref. 7251); peso máximo publicado: 200.00 g (Ref. 7251); edad máxima reportada: 9 años (Ref. 72462)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Espinas anales: 0. Moderately compressed, belly with a distinct keel of scutes. Lower jaw rising steeply within mouth; minute teeth present at front of jaws (disappearing with age). Lower gill rakers increasing with age. A dark spot on shoulder. Distinguished from A. aestivalis by its silvery peritoneum; eye larger than snout length; back greyish green on capture.

Biología     Glosario (por ej. epibenthic)

Occurs in open water over all bottom types (Ref. 86798). Movement of schooling adults apparently restricted to coastal areas proximal to natal estuaries (Ref. 4639). They migrate up rivers and even small streams to spawn in lakes and quiet stretches of rivers, then return to sea shortly after spawning (Ref. 4639); landlocked populations also ascend affluent rivers and streams. Larvae remain in vicinity of spawning grounds, forming schools at sizes less than 10 mm TL, within one to two weeks after hatching (Ref. 4639), then descend in summer and autumn or even as late as November or December. Feed on shrimps and small fishes; the young on diatoms, copepods and ostracods while in rivers. Utilized fresh, dried or salted, smoked and frozen; eaten fried (Ref. 9988). Also used for crab and lobster bait and sometimes for pet food (Ref. 9988). Parasites found are Acanthocephala, cestodes, trematodes and copepods. Overfishing, pollution and impassable dams cause the decline of stocks (Ref. 37032).

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

Adults migrate up rivers and even small streams, spawn in lakes and quiet stretches of rivers; landlocked populations also ascend affluent rivers and streams; the fry descend in summer and autumn or even as late as November or December. Spawning activity has been observed both diurnally and nocturnally, but with greatest activity at night (Ref. 38797). Spawning activity stops above 27.8°C (Ref. 38881). Freshwater populations mature earlier and at a smaller average size than saltwater populations (Ref. 4639).

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: 01 March 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesquerías: comercial; carnada: occasionally
FAO(pesquerías: producción; publication : search) | FishSource | Sea Around Us

Más información

Anatomy
Gill areas
Cerebros
Otolitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
Swimming speeds
Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referencias

Herramientas

Special reports

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Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 115969): 0.5 - 10.4, mean 3.3 (based on 86 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00622 - 0.00844), b=3.01 (2.97 - 3.05), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Nivel trófico (Ref. 69278):  3.4   ±0.3 se; based on diet studies.
Resiliencia (Ref. 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.2; tm=3.6; Fec=2,180).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (67 of 100).
Price category (Ref. 80766):   Low.