Fig. 2: Assignation of marine snow into morphotypes. | Nature Communications

Fig. 2: Assignation of marine snow into morphotypes.

From: Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export

Fig. 2

A The PCA morphospace presenting correlations between 24 morphological characteristics of individual marine snow particles (arrows) and their exemplary appearance spread over the 1st and 2nd axes on the left and the 3rd and 4th axes on the right side. B The projection of 1,063,576 marine snow particles in the common morphospace of two sampling regions distinguished by color (blue: Fram Strait, yellow: Baffin Bay). C Categorisation of the marine snow into 5 morphotypes by k-means clustering (color-coded). D Box plots of the median values (size of the boxes present 25th and 75th quartiles, whiskers present distance from the quartile max/min to 1.5 * IQR (inter-quartile range)) of key exemplary morphological properties (perimeter, circularity, 1/grey level, kurtosis of grey level) characterizing 5 morphotypes. E Representation of example images of marine snow in each category morphotype.

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