Plant
Pyropia yezoensis
Pyropia yezoensisAlso known as Susabi-nori, Yezo Laver, Red Laver, Japanese Laver
Pyropia yezoensis is a prominent red alga native to the cold temperate coastlines of the western Pacific and widely cultivated across East Asia for nori production. It exhibits a complex heteromorphic life cycle, alternating between a visible leafy blade phase attached to intertidal rocks and a microscopic shell-boring filamentous phase. In coastal ecosystems, these red algae absorb excess dissolved nutrients while providing shelter and nursery habitat for small marine invertebrates.
MarineRed AlgaIntertidal
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyAutotrophic (Photosynthetic)
Predators
- Herbivorous Snails
- Sea Urchins
- Amphipods
ThreatsRising sea surface temperatures, ocean acidification, coastal water pollution
HabitatsIntertidal rocky shores, shallow coastal bays, mariculture farm networks
Life spanAnnual (blade phase lasts 3–5 months)
Classification
- FamilyBangiaceae
- SpeciesPyropia yezoensis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe along rocky intertidal coasts at a normal distance.
Responsible observation
- Tide Watching: Search intertidal rocky reefs during low tide when thin reddish blades cling to damp rock surfaces.
- Habitat Care: Avoid stepping on delicate algal beds while exploring slippery intertidal zone rocks.
Ecological Competitor W.carter / CC0 · cc0
Close Relative (c) Maša Sinreih in Valentina Vivod, some rights reserved (CC BY-SA) · cc-by-sa
Close Relative (c) Gabriele Kothe-Heinrich, some rights reserved (CC BY-SA) · cc-by-sa
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