Sargassum johnsonii
Source-cited species reference: taxonomy from WoRMS, biology from SeaLifeBase, occurrence map from GBIF.
Distribution map plotted from GBIF.org occurrence records; basemap Natural Earth 110m · GBIF records CC0 / CC BY; Natural Earth public domain
Sargassum johnsonii is a marine species in the family Sargassaceae (Ochrophyta › Phaeophyceae › Fucales), recorded in the World Register of Marine Species as Sargassum johnsonii V.J.Chapman, 1961 under AphiaID 494927.
- Scientific name
- Sargassum johnsonii
- Authority
- V.J.Chapman, 1961
- Family
- Sargassaceae
- Order
- Fucales
- Habitat zone
- sessile
- Gbif occurrence records
- 175
Classification (WoRMS)
Full classification as recorded by WoRMS: Kingdom: Chromista · Phylum: Ochrophyta · Class: Phaeophyceae · Order: Fucales · Family: Sargassaceae · Genus: Sargassum.
Accepted name: Sargassum johnsonii · Authority: V.J.Chapman, 1961 · Taxonomic status: accepted · AphiaID: 494927.
Synonyms and superseded combinations recorded for this taxon: Sargassum (Phyllotricha) johnsonii V.J. Chapman, 1961.
Source: World Register of Marine Species (WoRMS) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=494927 (CC BY 4.0). Accessed 2026-09-23.
Biology and life history (SeaLifeBase)
Measured values published by SeaLifeBase for Sargassum johnsonii. Only fields the database actually holds for this species are shown; these are database values, not aquarium guidance.
Habitat zone: sessile.
Source: SeaLifeBase species summary (SpecCode 118999) — https://www.sealifebase.se/summary/Sargassum-johnsonii.html (CC BY-NC 3.0 — non-commercial use only). Accessed 2026-09-23.
Distribution and occurrence records (GBIF)
175 georeferenced occurrence records for Sargassum johnsonii are published through GBIF from 3 countries or marine areas. The map above plots 15 distinct locations from a sample of 175 records, omitting 9 inland records that carry an institution's coordinates rather than a collection site; it shows where the species has been observed and reported, not a modelled range.
Most records by country or area: Mexico (104); New Zealand (70); India (1).
Marine regions with a valid WoRMS distribution record: New Zealand Exclusive Economic Zone.
Source: GBIF Occurrence Search (taxonKey 3196901) — https://www.gbif.org/occurrence/search?taxon_key=3196901&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=494927 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-23.
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