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Sky emperor (Lethrinus mahsena) — Lethrinidae

Sky emperor

Lethrinus mahsena
Family: Lethrinidae
EN · Endangered

The Sky emperor (Lethrinus mahsena) is a saltwater fish of the family Lethrinidae that grows up to 65 cm.

Length
65 cm
Water
Saltwater
Depth
2.0–100.0 m
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Edibility
Highly prized

Description

The sky emperor (mahsena) is a robust emperor of the family Lethrinidae reaching about 65 cm. The deep, silvery-grey body has a pointed snout, thick lips and a red inner lining of the gill covers; the strong molar teeth are adapted to crushing shellfish and sea urchins. The species lives on coral reefs, seagrass beds and sand flats of the Indian Ocean and the Red Sea; it does not occur in European waters. It is long-lived (over 25 years) and a protogynous hermaphrodite, starting as a female and later becoming male. The mahsena is an important food and sport fish in the Indian Ocean, but through heavy fishing its populations have declined by more than 60% and it is assessed as Endangered (EN).

Frequently asked questions

How do you recognise the Sky emperor?

The Sky emperor has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Sky emperor live?

The Sky emperor lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Sky emperor get?

The Sky emperor grows to a maximum of about 65 cm. On average the species is around 40 cm.

Is the Sky emperor dangerous to humans?

No, the Sky emperor is harmless to humans.

Is the Sky emperor edible?

Yes, the Sky emperor is a highly prized food fish.

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All data

Identification

Dutch name
Mahsena-keizersbrasem inferred
English name
Sky emperor verified
Scientific name
Lethrinus mahsena
Family
Lethrinidae
Other names
Emperor; Mahsena emperor; Pigface bream; Sky emperor verified

Appearance

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

Habitat & distribution

Water type
Saltwater verified
Substrate
Stone or rock sourced
Min depth (m)
2.0 verified
Max depth (m)
100.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Small groups verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Protogynous (female first) verified
Sexual dimorphism
No verified
levensduur_max_jaar
27.0 verified

For anglers

Edibility
Highly prized verified
Fishing method
Bodemvissen boven riffen en zeegras met krab, schelpdier of vis als aas; een belangrijke doelsoort in de Indische Oceaan sourced
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 Lethrinus

More from the family Lethrinidae

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