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Bay flounder (Ammotretis rostratus) — Rhombosoleidae

Bay flounder

Ammotretis rostratus
DD · Data Deficient

The Bay flounder (Ammotretis rostratus) is a brackish-water fish of the family Rhombosoleidae that grows up to 30 cm.

Length
30 cm
Water
Brackish
Depth
1.0–80.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Temperate waters around southern Australia; sandy bays and coastal waters.
Edibility
Rarely eaten

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Description

The longsnout flounder is a flatfish of the family Rhombosoleidae from the temperate waters around southern Australia. The species grows to about 30 cm and has an oval, flattened body with both eyes on the right side and a conspicuous, downward-curved snout. It inhabits sandy areas of bays and open coastal waters, where it hides half-buried. As a bottom hunter it feeds on small invertebrates and worms. The flesh is of high quality, though the species is not taken in large numbers. Owing to limited data it is assessed as Data Deficient (DD). It is harmless to humans.

Frequently asked questions

How do you recognise the Bay flounder?

The Bay flounder has a flattened, disc-shaped body, is mainly brown and shows a plain pattern. Both eyes on the right side and a downward-curved snout; flatfish of sandy bays.

Where does the Bay flounder live?

The Bay flounder lives in brackish water and is mostly found around sand or mud bottom. Temperate waters around southern Australia; sandy bays and coastal waters.

How big does the Bay flounder get?

The Bay flounder grows to a maximum of about 30 cm.

Is the Bay flounder dangerous to humans?

No, the Bay flounder is harmless to humans. None required: this species is harmless to humans.

Is the Bay flounder edible?

The Bay flounder is rarely eaten.

More photos

Bay flounder (Ammotretis rostratus) — Rhombosoleidae — 2
iNaturalist ((c) Ken Graham, some rights reserved (CC BY-NC))
Bay flounder (Ammotretis rostratus) — Rhombosoleidae — 3
iNaturalist ((c) Mick Morley (Ocean Mick), some rights reserved (CC BY-NC))
Bay flounder (Ammotretis rostratus) — Rhombosoleidae — 4
iNaturalist ((c) Tiffany Kosch, some rights reserved (CC BY-NC-SA))
Bay flounder (Ammotretis rostratus) — Rhombosoleidae — 5
iNaturalist ((c) imogenisunderwater, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Bay flounder verified
Scientific name
Ammotretis rostratus
Family
Rhombosoleidae verified
Other names
Bay flounder; Long-nosed flounder; Longsnout flounder; Long-snouted flounder; Sole verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
1.0 verified
Max depth (m)
80.0 verified
Natural range
Temperate waters around southern Australia; sandy bays and coastal waters. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small invertebrates and worms sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Both eyes on the right side and a downward-curved snout; flatfish of sandy bays. sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Ammotretis

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