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Japanese seahorse (Hippocampus mohnikei) — Syngnathidae

Japanese seahorse

Hippocampus mohnikei
Family: Syngnathidae
VU · Vulnerable

The Japanese seahorse (Hippocampus mohnikei) is a saltwater fish of the family Syngnathidae that grows up to 8 cm.

Length
8 cm
Water
Saltwater
Depth
0.0–20.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Not eaten

Description

The Japanese seahorse is a small seahorse from coastal and estuarine water of East Asia, around Japan, Korea and China. The species grows to about 8 cm and has an upright, bony-ringed body, a horse-like head and a prehensile tail with which it clings to seagrass and weed. With its tubular snout it sucks up minute crustaceans. Remarkably, the male broods the eggs in a pouch. Owing to seagrass loss the species is under pressure. The IUCN assesses it as Vulnerable (VU).

Frequently asked questions

How do you recognise the Japanese seahorse?

The Japanese seahorse has an irregular in shape body, is mainly brown and shows a plain pattern.

Where does the Japanese seahorse live?

The Japanese seahorse lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Japanese seahorse get?

The Japanese seahorse grows to a maximum of about 8 cm. On average the species is around 5 cm.

Is the Japanese seahorse dangerous to humans?

No, the Japanese seahorse is harmless to humans.

Is the Japanese seahorse edible?

The Japanese seahorse is not usually eaten.

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All data

Identification

Dutch name
Japans zeepaardje verified
English name
Japanese seahorse verified
Scientific name
Hippocampus mohnikei
Family
Syngnathidae
Other names
Japanese seahorse verified

Appearance

Size class
Small verified
Max length (cm)
8.0 verified
Average length (cm)
5.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Straight inferred
Mouth position
Beak-shaped sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
20.0 verified
Origin
Native verified

Behaviour & biology

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

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
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 Hippocampus

More from the family Syngnathidae

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