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Esterase variation in the periwinkle Littorina littorea, along the western and eastern Scheldt estuarium
De Wolf, H.; Jordaens, K.; Reusens, E.; Blust, R.; Backeljau, T. (2001). Esterase variation in the periwinkle Littorina littorea, along the western and eastern Scheldt estuarium. Mar. Environ. Res. 52(4): 373-382. dx.doi.org/10.1016/S0141-1136(01)00091-5
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136; e-ISSN 1879-0291, more
Peer reviewed article  
Available in  Authors 
Keywords
    Chemical elements > Metals > Heavy metals
    Enzymes
    Pollution effects
    Properties > Chemical properties > Salinity
    Taxa > Species > Indicator species
    Littorina littorea (Linnaeus, 1758) [WoRMS]
    Belgium, Zeeschelde [Marine Regions]
    Marine/Coastal
Author keywords
    esterases; heavy metals; Littorina littorea; salinity; Scheldt estuary
Authors  Top 
  • De Wolf, H., more
  • Jordaens, K., more
  • Reusens, E.
Abstract
    Variation in esterase expression (EST) has been investigated in 360 specimens of the periwinkle Littorina littorea, collected at nine sites along the polluted western Scheldt and the relatively clean eastern Scheldt estuary. Mean number of EST bands differed among the sites, while a Dice similarity based multi-dimensional scaling along with a minimum spanning tree procedure, revealed an estuary based structuring, clustering the most polluted and least saline Eke sites together. The underlying factors and mechanisms (i.e. selection, regulation) which are responsible for this structuring remain to be determined.
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