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Sitka had an early bloom that led to high shellfish toxins in April, and there is currently a paralytic shellfish toxin advisory across Southeast for recreational and subsistence harvest.
A warm March has triggered an early spring bloom in Finland with wood anemone and common hepatica appearing ahead of their usual schedule.
April was 1–2 °C warmer than the 1991–2020 average in Finland, with a high of 22.9 °C in Rauma and a low of –23.8 °C in Kilpisjärvi. Sunshine was above average, while southern areas and Lapland saw increased rainfall.
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