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Longspine grunt (Pomadasys macracanthus) — Haemulidae

Longspine grunt

Pomadasys macracanthus
Family: Haemulidae

The Longspine grunt (Pomadasys macracanthus) is a saltwater fish of the family Haemulidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Eastern Pacific; coastal waters from southern Baja California and the Gulf of California to Ecuador.
Edibility
Commonly eaten

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Description

The longspine grunt is a grunt of the family Haemulidae from the eastern Pacific. The species grows to about 30 cm and has a streamlined, silvery body with a conspicuously long, stout second anal spine, to which the name refers. It inhabits coastal waters over sand and mud bottoms and sometimes enters estuaries. As a bottom predator it feeds on small crustaceans, worms, molluscs and small fishes. Grunts owe their name to the grunting sound they make with the pharyngeal teeth, amplified by the swim bladder. The longspine grunt is a valued food and bycatch fish and is harmless to humans.

Frequently asked questions

How do you recognise the Longspine grunt?

The Longspine grunt has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Strikingly long, stout second anal fin spine; makes grunting sounds with the pharyngeal teeth.

Where does the Longspine grunt live?

The Longspine grunt lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific; coastal waters from southern Baja California and the Gulf of California to Ecuador.

How big does the Longspine grunt get?

The Longspine grunt grows to a maximum of about 30 cm.

Is the Longspine grunt dangerous to humans?

No, the Longspine grunt is harmless to humans. None required: this species is harmless to humans.

Is the Longspine grunt edible?

Yes, the Longspine grunt is commonly eaten.

More photos

Longspine grunt (Pomadasys macracanthus) — Haemulidae — 2
iNaturalist ((c) Daniel, some rights reserved (CC BY-NC))
Longspine grunt (Pomadasys macracanthus) — Haemulidae — 3
iNaturalist ((c) Carlos Eduardo Simental Crespo, some rights reserved (CC BY-NC))
Longspine grunt (Pomadasys macracanthus) — Haemulidae — 4
iNaturalist ((c) marcosmoreno, some rights reserved (CC BY-NC))
Longspine grunt (Pomadasys macracanthus) — Haemulidae — 5
iNaturalist ((c) Eber Barraza, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Longspine grunt sourced
Scientific name
Pomadasys macracanthus
Family
Haemulidae

Appearance

Size class
Medium
Max length (cm)
30 sourced
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Eastern Pacific; coastal waters from southern Baja California and the Gulf of California to Ecuador. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small crustaceans, worms, molluscs and small fishes sourced
Social behaviour
Small groups 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
Strikingly long, stout second anal fin spine; makes grunting sounds with the pharyngeal teeth. sourced

For anglers

Edibility
Commonly eaten sourced
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 Pomadasys

More from the family Haemulidae

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