Where Blackspot sergeant has been recorded
GBIF occurrence records for Abudefduf sordidus, mapped and tabulated by country.
5,440 georeferenced occurrence records with coordinates are published for Abudefduf sordidus through GBIF, from 67 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
- 5,440
- Countries / areas
- 67
- Mapped locations
- 244
- Records sampled for the map
- 3,000
- Inland records omitted
- 62
- Gbif taxonkey
- 2398682
Countries and areas with the most records (GBIF)
United States of America — 1,878 records; Australia — 676 records; South Africa — 398 records; Japan — 348 records; French Polynesia — 342 records; Chinese Taipei — 223 records; Thailand — 153 records; New Caledonia — 144 records; Egypt — 100 records; Norfolk Island — 100 records; United States Minor Outlying Islands — 97 records; Northern Mariana Islands — 73 records; Seychelles — 70 records; Yemen — 60 records; India — 57 records.
Source: GBIF Occurrence Search (taxonKey 2398682) — https://www.gbif.org/occurrence/search?taxon_key=2398682&has_coordinate=true (records CC0 / CC BY). Accessed 2026-09-23.
Marine regions with a WoRMS distribution record
Mozambican Exclusive Economic Zone; Somali Exclusive Economic Zone; Madagascar; Seychellois Exclusive Economic Zone; Mauritian Exclusive Economic Zone; Réunion Exclusive Economic Zone; Red Sea; Kenyan Exclusive Economic Zone; Tanzanian Exclusive Economic Zone; Chagos; South Africa (country); Djiboutian Exclusive Economic Zone.
Source: WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=212888 (CC BY 4.0). Accessed 2026-09-23.
How to read this map
The map plots a sample of 3,000 of the 5,440 records, deduplicated to a half-degree grid, so dense areas do not merge into one blob. The sample covers 50 of the 67 countries or areas with records; the areas absent from the sample hold 82 records in total (Tonga, Kiribati, Solomon Islands, Micronesia (Federated States of), French Southern Territories, Tanzania, United Republic of, Palau, Wallis and Futuna).
62 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 2398682) — https://www.gbif.org/occurrence/search?taxon_key=2398682&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=212888 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-23.
Frequently Asked Questions
How many georeferenced records exist for Blackspot sergeant?
GBIF currently holds 5,440 coordinate-tagged occurrence records for Abudefduf sordidus, spanning 67 countries or marine areas. The distribution map samples 3,000 of those records to plot 244 distinct mapped locations.
In how many countries has Blackspot sergeant been recorded?
The species has occurrence records from 67 different countries or marine areas according to GBIF data. This wide spread reflects both its genuine Indo-Pacific range and the unevenness of survey effort across regions.
Why do some coastlines show more Blackspot sergeant records than others?
Occurrence data partly mirrors where researchers and divers have actually looked, so heavily surveyed coastlines naturally accumulate more records. This means the distribution map can over-represent well-studied areas relative to the fish's true range.
How many mapped locations does the Blackspot sergeant distribution page display?
The page plots 244 mapped locations, drawn from a sample of 3,000 out of the 5,440 total georeferenced records. An additional 62 inland records were excluded from the mapping because they fall outside the species' expected marine habitat.
What is the GBIF taxon key for Blackspot sergeant?
The species is catalogued under GBIF taxonKey 2398682, which links all 5,440 georeferenced occurrence records to a single taxonomic entry. This key lets researchers pull the full distribution dataset directly from the GBIF portal.
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