Where Old growth kelp has been recorded
GBIF occurrence records for Pterygophora californica, mapped and tabulated by country.
308,219 georeferenced occurrence records with coordinates are published for Pterygophora californica through GBIF, from 3 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
- 308,219
- Countries / areas
- 3
- Mapped locations
- 40
- Records sampled for the map
- 3,000
- Inland records omitted
- 27
- Gbif taxonkey
- 3196092
Countries and areas with the most records (GBIF)
United States of America — 307,767 records; Canada — 427 records; Mexico — 25 records.
Source: GBIF Occurrence Search (taxonKey 3196092) — https://www.gbif.org/occurrence/search?taxon_key=3196092&has_coordinate=true (records CC0 / CC BY). Accessed 2026-09-23.
How to read this map
The map plots a sample of 3,000 of the 308,219 records, deduplicated to a half-degree grid, so dense areas do not merge into one blob. The sample covers 2 of the 3 countries or areas with records; the areas absent from the sample hold 25 records in total (Mexico).
27 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 3196092) — https://www.gbif.org/occurrence/search?taxon_key=3196092&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=240750 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-23.
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