Table 2 Yearly change in phytoplankton bloom phenology along the Antarctic Peninsula during 1998-2022

From: Climate change is associated with higher phytoplankton biomass and longer blooms in the West Antarctic Peninsula

Phenology metric

DRA

BRS

GES

Bloom initiation

−0.003

0.058

0.008

Bloom termination

0.416***

0.046

0.098**

Bloom peak

0.097

0.115

−0.021

Bloom duration

0.419***

−0.012

0.089*

  1. For each region, the yearly linear change (i.e., the slope of linear regression) was estimated for each bloom phenology metric calculated in this work: bloom initiation (weeks year−1), bloom termination (weeks year−1), bloom peak (weeks year−1), bloom duration (weeks year−1), and bloom magnitude (mg m−3year−1; a measure of the biomass accumulated during the bloom). Bold *, **, and *** correspond to p value < 0.1, p value < 0.05, and p value < 0.01, respectively (a Pearson correlation test with a two-sided null hypothesis was used; see Supplementary Table 5 for a full list of the p values associated with each test).
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