Plankton blooms over the annual cycle shape trophic interactions under climate change

IF 5.1 2区 地球科学 Q1 LIMNOLOGY Limnology and Oceanography Letters Pub Date : 2024-04-03 DOI:10.1002/lol2.10385
Kinlan M. G. Jan, Baptiste Serandour, Jakob Walve, Monika Winder
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Abstract

Understanding species phenology and temporal co-occurrence across trophic levels is essential to assess anthropogenic impacts on ecological interactions. We analyzed 15 yr of monitoring data to identify trends and drivers of timing and magnitude of bloom-forming phytoplankton and diverse zooplankton taxa in the central Baltic Sea. We show that the timings of phytoplankton blooms advance, whereas crustacean zooplankton seasonal timings remain constant. This increasing offset with the spring bloom is linked to the decline of Pseudocalanus, a key copepod sustaining pelagic fish production. The majority of copepod and cladoceran taxa, however, are co-occurring with summer blooms. We also find new developing fall blooms, fueling secondary production later in the season. Our study highlights that response to climate change differs within and between functional groups, stressing the importance of investigating plankton phenologies over the entire annual cycle in pelagic systems.

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浮游生物在年周期中的大量繁殖形成了气候变化下的营养相互作用
要评估人类活动对生态相互作用的影响,就必须了解各营养级的物种物候和时间共存性。我们分析了 15 年的监测数据,以确定波罗的海中部浮游植物和各种浮游动物类群开花时间和规模的趋势和驱动因素。我们的研究表明,浮游植物开花的时间提前了,而甲壳动物浮游动物的季节性时间保持不变。这种与春季浮游植物繁殖时间的不断偏移与假桡足类的减少有关,而假桡足类是维持浮游鱼类生产的一种关键桡足类。然而,大多数桡足类和桡足类类群都与夏季水华同时出现。我们还发现了新出现的秋季藻华,这将促进本季后期的二次生产。我们的研究强调了功能群内部和功能群之间对气候变化的反应是不同的,强调了在浮游系统中调查整个年周期浮游生物物候的重要性。
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来源期刊
CiteScore
10.00
自引率
3.80%
发文量
63
审稿时长
25 weeks
期刊介绍: Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.
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