Where Blacktail butterflyfish has been recorded
GBIF occurrence records for Chaetodon austriacus, mapped and tabulated by country.
1,055 georeferenced occurrence records with coordinates are published for Chaetodon austriacus through GBIF, from 8 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
- 1,055
- Countries / areas
- 8
- Mapped locations
- 46
- Records sampled for the map
- 1,055
- Inland records omitted
- 7
- Gbif taxonkey
- 2385336
Countries and areas with the most records (GBIF)
Egypt — 847 records; Saudi Arabia — 102 records; Israel — 58 records; Jordan — 31 records; Yemen — 8 records; Sudan — 6 records; Maldives — 2 records; Philippines — 1 records.
Source: GBIF Occurrence Search (taxonKey 2385336) — https://www.gbif.org/occurrence/search?taxon_key=2385336&has_coordinate=true (records CC0 / CC BY). Accessed 2026-09-23.
Marine regions with a WoRMS distribution record
Somali Exclusive Economic Zone; Red Sea; Eritrean Exclusive Economic Zone; Israeli part of the Mediterranean Sea - Eastern Basin.
Source: WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=218732 (CC BY 4.0). Accessed 2026-09-23.
How to read this map
The map plots a sample of 1,055 of the 1,055 records, deduplicated to a half-degree grid, so dense areas do not merge into one blob. The sample covers 8 of the 8 countries or areas with records; the areas absent from the sample hold 0 records in total.
7 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 2385336) — https://www.gbif.org/occurrence/search?taxon_key=2385336&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=218732 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-23.
Frequently Asked Questions
How many location records are there for Blacktail butterflyfish?
GBIF currently lists 1,055 georeferenced occurrence records for Chaetodon austriacus. All of them were sampled for the distribution map, with 7 inland entries dropped and 46 distinct locations plotted.
How many countries has Blacktail butterflyfish been spotted in?
The published records span 8 countries or marine areas. The data is aggregated under GBIF taxon key 2385336.
Why are some regions over-represented in Blacktail butterflyfish records?
Record density tracks survey effort as much as true distribution, so heavily studied coastlines accumulate more observations than equally suitable but less-visited habitats. The map therefore reflects where people have looked, not solely where the fish lives.
What database powers the Blacktail butterflyfish distribution page?
The page draws entirely from GBIF's global occurrence dataset, which pools biodiversity records from institutions worldwide. For this species the relevant entry sits under taxon key 2385336.
Does the Blacktail butterflyfish map include every single record?
All 1,055 records were sampled for the map, but 7 inland entries were omitted since the species is strictly marine. The remaining data points are distributed across 46 mapped locations.
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