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 variable . | Chl a (absolute amount) by phytoplankton taxon . | ||||||
---|---|---|---|---|---|---|---|
Prasinophyte . | Cryptophyte . | Dichtyochophyte . | Haptophyte . | ||||
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 variable . | Chl a (absolute amount) by phytoplankton taxon . | ||||||
---|---|---|---|---|---|---|---|
Prasinophyte . | Cryptophyte . | Dichtyochophyte . | Haptophyte . | ||||
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.