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Table 3

Spearman rank correlation coefficientsa between surface water (5 m) prasinophyte, cryptophyte, dictyochophyte, and haptophyte chlorophyll a (chl a) and surface water (5 m) temperature, stratification strength, euphotic zone depth and N-limitation index. DOI: https://doi.org/10.1525/elementa.307.t3

Environmental variableChl a (absolute amount) by phytoplankton taxon

 
PrasinophyteCryptophyteDichtyochophyteHaptophyte

 
Stratification 0.81 (0.00) 0.79 (0.00) –0.13 (0.55) 0.72 (0.00) 
Temperature 0.52 (0.01) 0.42 (0.04) –0.21 (0.32) 0.41 (0.05) 
Euphotic zone –0.53 (0.01) –0.45 (0.03) –0.09 (0.67) –0.51 (0.01) 
N-limitation indexc 0.79 (0.00) 0.83 (0.00) –0.16 (0.55) 0.81 (0.00) 
Environmental variableChl a (absolute amount) by phytoplankton taxon

 
PrasinophyteCryptophyteDichtyochophyteHaptophyte

 
Stratification 0.81 (0.00) 0.79 (0.00) –0.13 (0.55) 0.72 (0.00) 
Temperature 0.52 (0.01) 0.42 (0.04) –0.21 (0.32) 0.41 (0.05) 
Euphotic zone –0.53 (0.01) –0.45 (0.03) –0.09 (0.67) –0.51 (0.01) 
N-limitation indexc 0.79 (0.00) 0.83 (0.00) –0.16 (0.55) 0.81 (0.00) 

a Correlations were with stations M and G combined except for the N-limitation index, which was determined at station M only. Asterisks indicate significant relationships; p values are shown in parentheses.

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