Sargassum johnsonii
Source-cited species reference: taxonomy from WoRMS, biology from SeaLifeBase, occurrence map from GBIF.
Last updated
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 classification
- CladeEukaryota
- CladeSar<!-- Do not change Sar to SAR. The consensus was to use Sar in the taxonomy template. -->
- CladeStramenopiles
- ClassPhaeophyceae
- OrderFucales
- FamilySargassaceae
- GenusSargassum
- SpeciesSargassum johnsonii
Named by Chapman, 1961
Close relatives
Other species of Sargassum with a Codexery entry.
- Sargassum aquifolium Sargassum aquifolium
- Sargassum fusiforme Sargassum fusiforme
- Sargassum horneri Sargassum horneri
- Sargassum muticum
Sources: Wikipedia taxobox: Sargassum johnsonii (CC BY-SA 4.0) · order, family and genus agree with WoRMS AphiaID 494927 (CC BY 4.0)
Where the sargassum johnsonii has been recorded
Each dot is a place where the species has been observed and reported (175 records, half-degree grid) — not a modelled range. 9 inland records left out (institution coordinates).
Map: drawn by Codexery. Data: GBIF occurrence search (records CC0 / CC BY) · Natural Earth basemap (public domain)
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Synonyms and superseded combinations recorded for this taxon: Sargassum (Phyllotricha) johnsonii V.J. Chapman, 1961.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 2026-09-25.
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 2026-09-25.
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 2026-09-25.
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Sargassum johnsonii (CC BY-SA 4.0).
- Classification: the source article's taxobox; order, family and genus checked against WoRMS, the World Register of Marine Species (CC BY 4.0).
- Occurrence records: GBIF (CC0 / CC BY). Basemap: Natural Earth (public domain).
- Biology values: SeaLifeBase species summary (CC BY-NC 3.0, non-commercial).
- Word definitions: the , each quoted from its Wikipedia article.
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