Species profile
Bottlebrush seaweed
Analipus japonicus
Brown algae/kelps284 iNat observations
At a glance
Bottlebrush seaweed (Analipus japonicus) is a marine alga regulated in 3 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.
The strictest bag limit is 1 (Oregon); the most generous is 10 (California).
Confirmed by 207 research-grade iNaturalist observations, with California, British Columbia, and Oregon the top jurisdictions by observation count.
Notable details
- A brown alga whose densely packed lateral branches closely resemble a kitchen bottlebrush.
- Found on rocky intertidal shores across the North Pacific, from Japan to the Pacific Northwest.
- Attaches to rock using a disc-shaped holdfast that resists strong wave surge.
- Can survive brief aerial exposure during low tide by tolerating partial desiccation.
- Reproduces via microscopic spores released directly into the water column.
Where Bottlebrush seaweed are seen
Jurisdictions with rules for Bottlebrush seaweed
Background
Analipus japonicus or "sea fir" is a brown alga species in the genus Analipus.
Background excerpt adapted from Wikipedia's Bottlebrush seaweed article (CC BY-SA). Visit Wikipedia for the full entry.
Other brown algae/kelps on CatchRules
Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.