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Size and phytoplankton selection by Oosterschelde zooplankton OMA
Tackx, M.L.M.; Bakker, C.; Francke, J.W.; Vink, M..
Grazing of adults of the copepods <i>Acartia</i> spp., <i>Temora longicornis, Centropages hamatus</i> and nauplii of <i>Balanus</i> spp. on natural particulate matter from the Oosterschelde was studied using a Coulter counter. Two types of particulate matter distributions were found to occur in the Oosterschelde: 1. distributions with distinct peaks in the >20 µm size range (A) and 2. more flattened distributions which were bell-shapened or contained multiple small peaks spread over the entire 4-100 µm size range (B). In A-type distributions, peak tracking was performed in all species studied, especially in <i>Acartia</i> spp. and <i>T. longicornis</i>. In B-type distributions, the animals...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zooplankton ANE; Netherlands; Oosterschelde.
Ano: 1989 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3190
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Plankton size distributions and trophic relations before and after the construction of the storm-surge barrier in the Oosterschelde estuary OMA
Tackx, M.L.M.; Herman, P.M.J.; Van Rijswijk, P.; Vink, M.; Bakker, C..
Phytoplankton and zooplankton biomass distributions were calculated on a carbon basis for the inland part of the Oosterschelde, in the period before (1983), during (1984, 1986) and after (1987, 1988) the construction of the storm-surge barrier. In all years studied, both phytoplankton and zooplankton distributions are very irregular, and little consistent patterns emerge. The data were used to test the model of Sheldon et al. (1977). The observed standing stock ratios of zooplankton to phytoplankton agree with the model predictions in 1983, and are slightly higher during the period 1984-1987. In 1988, the model predictions are very different from the observed values, because of important changes in the zooplankton species abundance occurring in this year.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Particles; Particles; Particles; Plankton; Size distribution; Spectra; Zooplankton; Netherlands.
Ano: 1994 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2675
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