Baltic hard bottom mesocosms unplugged: replicability, repeatability and ecological realism examined by non-parametric multivariate techniques

Patrik Kraufvelin

    Research output: Contribution to journalArticleScientificpeer-review

    27 Citations (Scopus)

    Abstract

    The similarity percentage breakdown procedure (SIMPER) establishes the species principally responsible for these differences. Considering abundance data Theodoxus fluviatilis is always an important discriminator between groups, mostly accompanied by Mytilus edulis and either Idotea spp. (replicability) or Gammarus spp. (realism). For biomass data Mytilus and Idotea are the most important overall discriminators, followed by Lymnaea spp. (repeatability and realism) and Cerastoderma glaucum (realism). Finally the factors and processes restricting mesocosm performance are outlined and their consequences are briefly discussed. It is concluded that the degrees of replicability, repeatability and ecological realism are too low for straightforward use of these and probably most other mesocosms in predictive risk assessment or in extrapolation of results to natural ecosystems. (C) 1999 Elsevier Science B.V. All rights reserved.
    Original languageUndefined/Unknown
    Pages (from-to)229–258
    Number of pages30
    JournalJournal of Experimental Marine Biology and Ecology
    Volume240
    Issue number2
    Publication statusPublished - 1999
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Baltic sea
    • community structure
    • ecological realism
    • mesocosm
    • multivariate statistics
    • repeatability
    • replicability
    • rocky shore macrofauna

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