Channel Wrack
Pelvetia canaliculata
Channel Wrack’s narrow fronds curl into a channel shape, helping them retain moisture during low tide. This resilience allows it to thrive higher on the shore than most other wracks. On Lihou, you can spot it forming small, dark patches on exposed rocks that receive little direct splash, highlighting its tolerance of harsh, drying conditions.
- Habitat: Upper shore on rocky coasts, often near the high-tide mark.
- When to See: All year
- Length: Typically up to 10 cm (small, channel-shaped fronds)