Evidence found
284 records across 3 countries and territories, 2006–2025.
Saccostrea kegaki · GBIF taxon key 5855436
Where has the Japanese spiny oyster been recorded?
Saccostrea kegaki occurrence evidence comes from 284 records in 3 countries and territories, from 2006 to 2025. Most records come from Japan.
- 284 records
- 3 places
- 3 years recorded
- Bivalvia class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-22. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: July.
4 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: July. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Where Japanese spiny oyster has been recorded
The countries below show where occurrence evidence exists for Japanese spiny oyster. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
| Place | Records | Share |
|---|---|---|
| Japan | 278 | |
| South Korea | 5 | |
| Angola | 1 |
Record pattern: repeated
Repeated records concentrated in part of the year. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records concentrated in part of the year. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.