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Laminaria digitata
Scientific classification
Kingdom: Chromalveolata
Division: Heterokontophyta
Class: Phaeophyceae
Order: Laminariales
Family: Laminariaceae
Genus: Laminaria
Species: L. digitata
Binomial name
Laminaria digitata

'''Laminaria digitata''' is a brown alga in the Division Heterokontophyta, of the genus Laminaria, also known by the common name Oarweed.


Laminaria digitata is found mostly on exposed sites on shores in the lower littoral where it can be the dominant algae. It has a fairly high intrinsic growth rate compared to other algae, 5.5 % per day and a carrying capacity of about 40 kg wet weight per square meter. It may reach lengths of about 4 m. It overlaps to a small degree (+) in distribution with Fucus serratus and Alaria esculenta (+). It is highly succeptible to grazing by sea urchins, among other species. It has low and high light limitation values of about 5 and 70 W per square meter respectively. Its distribution is also limited by salinity, wave exposure, temperature, desiccation and general stress. These, and other attributes of the algae are summarized in [1][2],[3].


  1. ^ J. R. Lewis (1964). The Ecology of Rocky Shores. English Universities Press, London.  
  2. ^ Seip,K.L.1980. A mathemaical model of competition and colonization in a community of marine benthic algae. Ecological modelling 10:77-104
  3. ^ Seip, K.L. Mathematical models of rocky shore ecosystems. In Jørgensen, SE and Mitch, WJ (Eds) Application of ecological modelling in environmental management, Part B, Chap 13, pp 341-433


Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary


Proper noun

Laminaria digitata

  1. (taxonomy) A taxonomic species within the genus Laminaria — oarweed/tangle kelp.


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