Sargassum natans

Narrowleaf Sargasso

As recorded: Sargassum natans (L.) Gaillon

Chromista › Ochrophyta › Phaeophyceae › Fucales › Sargassaceae

Collected by: Bernatowicz, A.J.
Collector number: 158
Date: July 31, 1950
Locality: Woods Hole Harbor
Region: Massachusetts, United States
Record type: Preserved specimen

28 Bishop specimens of Sargassum natans · collected 1850–1984Species page ›

Sargassum natans observed alive

This specimen was collected in 1950. Since 2000, iNaturalist observers have recorded 101 research-grade sightings in the wild, most recently on 2026-10-16.

2026-10-16

Sunset Dr, Tarpon Springs, FL, US

(c) frazier_e_002, some rights reserved (CC BY-NC)

2026-09-20

Tobacco Bay, Bermuda

(c) Ted Weber, some rights reserved (CC BY-NC)

2026-05-30

Miami, FL, USA

(c) Kyle Dettloff, some rights reserved (CC BY-NC)

2026-05-27

4WFJ+RW, 81000, Dominican Republic

(c) David Garrigues, some rights reserved (CC BY-NC)

2026-05-16

North Atlantic Ocean

(c) Hannah Floyd, some rights reserved (CC BY-NC)

2026-05-09

E Beach Dr, Ocean Springs, MS, US

(c) jessiemec, some rights reserved (CC BY-NC)

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Sargassum natans. BISH 560625. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956587739. Accessed via explore.bishopmuseum.org/specimens/bish/560625.

Record sources

GBIF occurrence 5956587739 ↗
Data license: CC_BY_NC_4_0
Last harvested October 26, 2026