Six-lined prickleback

Ernogrammus hexagrammus

Fish
IUCN: Not evaluated

Usual depth0–7 m
Water temperature7–20 °C
Best monthsMay and August
How commonRare

All species

Photo credit: (c) merec0, some rights reserved (CC BY) · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 1 records
February: 2 records
March: 1 records
April: 4 records
May: 9 records
June: 4 records
July: 2 records
August: 12 records
September: 4 records
October: 5 records
November: 0 records
December: 1 records

Depth and water temperature

Depth

Mostly recorded at 0–7 m · Deepest record: 7 m

0–10 m: 9 records

Water temperature

Recorded in surface water of 7–20 °C

6–8 °C: 13 records
8–10 °C: 2 records
10–12 °C: 0 records
12–14 °C: 3 records
14–16 °C: 3 records
16–18 °C: 0 records
18–20 °C: 14 records

Photos

Names and classification

English: Six-lined prickleback

Names in 2 more languages

Japanese: Musujigaji, ムスジガジ
Korean: 세줄베도라치

Other scientific names: Stichaeus enneagrammus, Stichaeus hexagrammus

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Conservation status as published by GBIF (IUCN Red List).
76 open-data records from 1900 to 2016.
Species data updated November 2, 2026.

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