Home · Clupeidae · Blueback glut herring
Blueback glut herring (Alosa aestivalis) — Clupeidae

Blueback glut herring

Alosa aestivalis
Family: Clupeidae
VU · Vulnerable

The Blueback glut herring (Alosa aestivalis) is a fish that lives in both fresh and salt water of the family Clupeidae that grows up to 40 cm.

Length
40 cm
Water
Euryhaline
Depth
5.0–55.0 m
Diet
Carnivore
Behaviour
Schooling
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Edibility
Commonly eaten

Description

The blueback shad (Alosa aestivalis) is a migratory herring of the family Clupeidae from the western Atlantic. The species has a laterally compressed, silvery body with a conspicuous blue-green back and usually a dark shoulder spot, and reaches about 40 cm. It is an anadromous species: adults live in the sea, often far offshore, and migrate up rivers in spring to spawn. They form schools and feed on zooplankton. The species is an important commercial and bait fish, but has declined sharply owing to overfishing, dams and habitat loss and is assessed as Vulnerable (VU).

Frequently asked questions

How do you recognise the Blueback glut herring?

The Blueback glut herring has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Blueback glut herring live?

The Blueback glut herring lives in both fresh and salt water and is mostly found around open water.

How big does the Blueback glut herring get?

The Blueback glut herring grows to a maximum of about 40 cm. On average the species is around 28 cm.

Is the Blueback glut herring dangerous to humans?

No, the Blueback glut herring is harmless to humans.

Is the Blueback glut herring edible?

Yes, the Blueback glut herring is commonly eaten.

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All data

Identification

Dutch name
Blauwrug-elft sourced
English name
Blueback glut herring verified
Scientific name
Alosa aestivalis
Family
Clupeidae
Other names
Blueback herring; Blueback shad; Herring verified

Appearance

Size class
Medium verified
Max length (cm)
40.0 verified
Average length (cm)
27.5 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Open water sourced
Min depth (m)
5.0 verified
Max depth (m)
55.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
levensduur_max_jaar
8.0 verified

For anglers

Edibility
Commonly eaten sourced
Fishing method
Sportvissen met kunstaas of (dood/levend) aasvis door te trollen, te werpen of drijvend te vissen in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Alosa

More from the family Clupeidae

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