The end of the polar night with the concurrent onset of photosynthetic biomass production ultimately leads to the spring bloom, which represents the most important event of primary production for the Arctic marine ecosystem. This dataset shows, for the first time, significant in situ biomass accumulation during the dark–light transition in the high Arctic, as well as the earliest recorded positive net primary production rates together with constant chlorophyll a-normalized potential for primary production through winter and spring. The results indicate a high physiological capacity to perform photosynthesis upon re-illumination, which is in the same range as that observed during the spring bloom. Put in context with other data, the results of this study indicate that also active cells originating from the low winter standing stock in the water column, rather than solely resting stages from the sediment, can seed early spring bloom assemblages.

中文翻译：

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时刻准备着？极夜结束时北极浮游植物的初级生产

极夜的结束以及光合生物量生产的同时开始最终导致春季开花，这是北极海洋生态系统初级生产的最重要事件。该数据集首次显示了北极高地暗光过渡期间显着的原位生物量积累，以及最早记录的正净初级生产力以及恒定的叶绿素a- 冬季和春季初级生产的标准化潜力。结果表明，在重新照明时进行光合作用的生理能力很高，这与春季开花期间观察到的范围相同。结合其他数据，这项研究的结果表明，来自水柱中冬季低存量的活跃细胞，而不是仅仅来自沉积物的静止阶段，也可以播种早春开花组合。