Where Pacific double-saddle butterflyfish has been recorded
GBIF occurrence records for Chaetodon ulietensis, mapped and tabulated by country.
4,556 georeferenced occurrence records with coordinates are published for Chaetodon ulietensis through GBIF, from 37 countries or marine areas. This page maps those records and lists where they come from. Occurrence records reflect where people have looked as well as where the species lives, so well-surveyed coastlines are over-represented.
- Georeferenced records
- 4,556
- Countries / areas
- 37
- Mapped locations
- 304
- Records sampled for the map
- 3,000
- Inland records omitted
- 20
- Gbif taxonkey
- 2385416
Countries and areas with the most records (GBIF)
Australia — 1,088 records; French Polynesia — 838 records; New Caledonia — 432 records; Tonga — 311 records; Fiji — 290 records; Indonesia — 184 records; Guam — 177 records; American Samoa — 167 records; United States Minor Outlying Islands — 139 records; Wallis and Futuna — 114 records; Palau — 102 records; Northern Mariana Islands — 94 records; Solomon Islands — 89 records; Papua New Guinea — 61 records; Micronesia (Federated States of) — 59 records.
Source: GBIF Occurrence Search (taxonKey 2385416) — https://www.gbif.org/occurrence/search?taxon_key=2385416&has_coordinate=true (records CC0 / CC BY). Accessed 2026-09-23.
Marine regions with a WoRMS distribution record
Tanzanian Exclusive Economic Zone.
Source: WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=218717 (CC BY 4.0). Accessed 2026-09-23.
How to read this map
The map plots a sample of 3,000 of the 4,556 records, deduplicated to a half-degree grid, so dense areas do not merge into one blob. The sample covers 33 of the 37 countries or areas with records; the areas absent from the sample hold 6 records in total (Nauru, Niue, China, Madagascar).
20 records plotting inland were omitted: for a marine species those are almost always the holding institution's coordinates rather than a collection site.
Records show where the species has been observed and reported, not a modelled range.
Source: GBIF Occurrence Search (taxonKey 2385416) — https://www.gbif.org/occurrence/search?taxon_key=2385416&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=218717 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-23.
Frequently Asked Questions
How many countries or marine areas is Where Pacific double-saddle butterflyfish has been recorded documented across?
The species has occurrence records spanning 37 different countries or marine areas, as compiled through the GBIF database.
How many mapped locations does Where Pacific double-saddle butterflyfish has been recorded show?
The distribution map displays 304 distinct mapped locations, drawn from a sample of 3,000 records selected for visualization.
Why are some regions over-represented in Where Pacific double-saddle butterflyfish has been recorded?
Occurrence records reflect not just where the fish actually lives but also where researchers have conducted surveys, so heavily studied coastlines naturally appear with more data points.
Were any inland records included in Where Pacific double-saddle butterflyfish has been recorded?
No—20 inland records were deliberately omitted from the distribution data since this is a marine species and those points likely represent data-entry errors or misidentifications.
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