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Blackblotch emperor (Lethrinus semicinctus) — Lethrinidae

Blackblotch emperor

Lethrinus semicinctus
Family: Lethrinidae
LC · Least Concern

The Blackblotch emperor (Lethrinus semicinctus) is a saltwater fish of the family Lethrinidae that grows up to 35 cm.

Length
35 cm
Water
Saltwater
Depth
4.0–35.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Edibility
Commonly eaten

Description

The blackblotch emperor is an emperor from the Indo-West Pacific, from Sri Lanka to the Marshall and Solomon Islands, north to the Ryukyu Islands. The species grows to about 35 cm and has a silver-grey body with a conspicuous dark blotch on the rear flank. It lives on seagrass beds, reef flats and sandy zones near coral to about 35 metres and hunts bottom invertebrates and small fish. Like other emperors it is a protogynous hermaphrodite. The fish is harmless to humans and is assessed as Least Concern (LC) by the IUCN.

Frequently asked questions

How do you recognise the Blackblotch emperor?

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

Where does the Blackblotch emperor live?

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

How big does the Blackblotch emperor get?

The Blackblotch emperor grows to a maximum of about 35 cm. On average the species is around 29 cm.

Is the Blackblotch emperor dangerous to humans?

No, the Blackblotch emperor is harmless to humans.

Is the Blackblotch emperor edible?

Yes, the Blackblotch emperor is commonly eaten.

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All data

Identification

Dutch name
Zwartvlek-keizersbaars verified
English name
Blackblotch emperor verified
Scientific name
Lethrinus semicinctus
Family
Lethrinidae
Other names
Black blotch emperor; Blackblotch emperor; Black-blotched emperor verified

Appearance

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

Habitat & distribution

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

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
No sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bodemvissen met aas 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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