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Present and past depth distribution of bladderwrack (Fucus vesiculosus) in the Baltic Sea
Torn, K.; Krause-Jensen, D.; Martin, G. (2006). Present and past depth distribution of bladderwrack (Fucus vesiculosus) in the Baltic Sea. Aquat. Bot. 84(1): 53-62. https://dx.doi.org/10.1016/j.aquabot.2005.07.011
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522, more
Peer reviewed article  

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    Dimensions > Depth > Water depth
    Properties > Chemical properties > Salinity
    Temporal variations > Long-term changes
    Fucus vesiculosus Linnaeus, 1753 [WoRMS]
    ANE, Baltic [Marine Regions]
Author keywords
    Baltic Sea; Fucus vesiculosus; depth distribution; salinity; waterclarity; long-term change

Authors  Top 
  • Torn, K.
  • Krause-Jensen, D.
  • Martin, G., more

    This study aimed to (1) assess the present depth distribution of Fucus vesiculosus in the Baltic Sea and evaluate differences between districts and (2) assess long-term and recent changes in depth distribution and evaluate reasons for such changes. This was done through compilation and analysis of existing data (3356 obs.). Depth limits were shallowest in the Kattegat, the Danish Belts and the Øresund (not, vert, similar1.5 m on average), located at the entrance of the Baltic Sea and markedly deeper in the central and inner parts of the Baltic (up to not, vert, similar4.5 m on average). This increase in depth limits to some extent matched the decline in salinity and may in part be explained by reduced competition when species diversity decreases successively along the Baltic salinity gradient. In the central and inner Baltic Sea, Secchi depths explained part of the variation (16%) in depth limits and the majority (85%) of the variation in maximum attainable depth limits whereas at the entrance of the Baltic Secchi depths explained a negligible part of the variation (not, vert, similar1%). In most districts, depth limits moved upwards during the 20th century. In many cases this happened during or shortly after the 1960s/1970s, and was most likely due to eutrophication.

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