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Lamprey (Geotria australis) — Geotriidae

Lamprey

Geotria australis
Family: Geotriidae
DD · Data Deficient

The Lamprey (Geotria australis) is a fish that lives in both fresh and salt water of the family Geotriidae that grows up to 57 cm.

Length
57 cm
Water
Euryhaline
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Snake-like
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The pouched lamprey is a lamprey (family Geotriidae), a jawless, eel-like fish of the southern hemisphere. The species reaches about 57 cm and has a snake-like body with a round sucking disc instead of jaws and two dorsal fins. The larvae live for years buried in the upper reaches of coastal streams, filtering detritus and microorganisms; after metamorphosis they migrate to the sea and adults live parasitically on the blood and tissue of other fishes. To spawn they return to fresh water. The species is eaten locally; its conservation status is assessed as Data Deficient (DD). It is harmless to humans.

Frequently asked questions

How do you recognise the Lamprey?

The Lamprey has a snake-like body, is mainly silver-grey and shows a plain pattern.

Where does the Lamprey live?

The Lamprey lives in both fresh and salt water and is mostly found around sand or mud bottom.

How big does the Lamprey get?

The Lamprey grows to a maximum of about 57 cm. On average the species is around 48 cm.

Is the Lamprey dangerous to humans?

No, the Lamprey is harmless to humans.

Is the Lamprey edible?

Yes, the Lamprey is commonly eaten.

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All data

Identification

Dutch name
Buidelprik sourced
English name
Lamprey verified
Scientific name
Geotria australis
Family
Geotriidae
Other names
Lamprey; Narrow-mouthed lamprey; Pouch lamprey; Pouched lamprey verified

Appearance

Size class
Large verified
Max length (cm)
57.0 verified
Average length (cm)
47.5 verified
Body shape
Snake-like sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Sand / mud bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

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