Biodiversity & Conservation

Channelled wrack - Pelvetia canaliculata

Image Steve Trewhella - Channelled wrack, Pelvetia canaliculata. Image width ca XX cm.
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Pelvetia canaliculata recorded () and expected () distribution in Britain and Ireland (see below)

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Pelvetia canaliculata is not listed under any importance categories.

Taxonomy	Taxon	English term
Phylum	Ochrophyta	Brown and yellow-green seaweeds
Class	Phaeophyceae
Authority	Decaisne & Thuret, 1845
Recent synonyms	None
Recorded Distribution in Britain and Ireland	All coasts of Britain and Ireland
Habitat information	Pelvetia canaliculata grows attached to hard substrata on the upper shore. It is found in a band above Fucus spiralis and can tolerate ultra sheltered to moderately exposed conditions.
Description	A common brown seaweed found high on the shore. It is very tolerant of desiccation surviving up to 8 days out of the water. Pelvetia canaliculata lives for about 4 years and grows up to 15 cm long. The fronds of the algae are curled longitudinally forming a channel.
Identifying features	Frond curled longitudinally to form a distinct channel. Without midrib or airbladders. Reproductive bodies at ends of branches. Dichotomously branched.
Additional information	Pelvetia canaliculata has an obligate endophytic fungus Mycosphaerella acophylli (Ascomycetes).

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This review can be cited as follows:

Nicola White 2008. Pelvetia canaliculata. Channelled wrack. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 09/02/2010]. Available from: <http://www.marlin.ac.uk/speciesinformation.php?speciesID=4064>

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Pelvetia canaliculata

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Pelvetia canaliculata