Diel changes in zooplanktonic community composition with in each
cruise were visualized by a non-metric multidimensional scaling
(nMDS) on the Bray–Curtis dissimilarity matrix created from each
cruise dataset based on fourth root transformed abundances. To check
whether diurnal and nocturnal assemblages were statistically different,
we applied permutational multivariate analyses of variance on Bray–
Curtis distances calculated on fourth root transformed data. When the