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Zooplankton biomass in the Oosterschelde (SW Netherlands) before, during and after the construction of a storm-surge barrier
Bakker, C.; Van Rijswijk, P. (1994). Zooplankton biomass in the Oosterschelde (SW Netherlands) before, during and after the construction of a storm-surge barrier. Hydrobiologia 282: 127-143. https://dx.doi.org/10.1007/BF00024626
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, more
Related to:
Bakker, C.; Van Rijswijk, P. (1994). Zooplankton biomass in the Oosterschelde (SW Netherlands) before, during and after the construction of a storm-surge barrier, in: Nienhuis, P.H. et al. The Oosterschelde Estuary (The Netherlands): A case-study of a changing ecosystem. Developments in Hydrobiology, 97: pp. 127-143. https://dx.doi.org/10.1007/978-94-011-1174-4_11, more
Peer reviewed article  
Available in  Authors 
Keywords
    Abundance
    Aquatic communities > Plankton > Phytoplankton
    Arthropods > Crustacea > Copepoda > Calanoida > Temoridae > Temora
    Retention time
    Copepoda [WoRMS]; Pleurobrachia Fleming, 1822 [WoRMS]; Pleurobrachia pileus (O. F. Müller, 1776) [WoRMS]; Temora longicornis (Müller O.F., 1785) [WoRMS]
    ANE, Netherlands, Oosterschelde [Marine Regions]
    Marine/Coastal; Brackish water
Author keywords
    Copepods; Zooplankton biomass; Bayes; Eastern scheldt; Pleurobrachia; Benthic larvae; Southern north-sea; Seston food quality; Nova-scotia; Ctenophore pleurobrachia-pileus; Continuous plankton records; Temora-longicornis; Bed sediments; Estuary; Estuarium
Authors  Top 
  • Bakker, C.
  • Van Rijswijk, P., more
Abstract
    The hydrodynamic consequences of large coastal engineering (barrier-construction) works in the Oosterschelde were: prolonged residence times of the water, increased sinking of particulate material, and higher water transparencies. This strongly influenced the phytoplankton (Bakker et al., 1990; 1994) and phytoplankton biomass increased in the shallow Eastern compartment of the Oosterschelde (Bakker & Vink, 1994) while phytoplankton concentration of the seston rose. Zooplankton biomass, especially of copepods (Temora) and meroplankton (barnacle larvae) increased during the post-barrier period in the Eastern compartment. It is hypothesized that this is caused by the improved feeding conditions and the increased retention times in this area. The barrier years 1985 and 1986 were characterized by low current velocities. In the Eastern compartment, this may have favoured the development of the rotifer Synchaeta (Bakker, 1994) and of the important copepod predator Pleurobrachia (Ctenophora). In the Western compartment, zooplankton developments in the post-barrier years were rather similar to those in the pre-barrier period. This led to the disappearance of the previously existing biomass gradients West-East (maxima in West). At present a trend in the opposite direction (maxima in East) is observed.
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