Tracking a large‐scale and highly toxic Arctic algal bloom: Rapid detection and risk communication

IF 5.1 2区地球科学 Q1 LIMNOLOGY

Limnology and Oceanography Letters Pub Date : 2024-07-10 DOI:10.1002/lol2.10421

Evangeline Fachon, Robert S. Pickart, Gay Sheffield, Emma Pate, Mrunmayee Pathare, Michael L. Brosnahan, Eric Muhlbach, Kali Horn, Nathaniel N. Spada, Anushka Rajagopalan, Peigen Lin, Leah T. McRaven, Loreley S. Lago, Jie Huang, Frank Bahr, Dean A. Stockwell, Katherine A. Hubbard, Thomas J. Farrugia, Kathi A. Lefebvre, Donald M. Anderson

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引用次数: 0

Abstract

In recent years, blooms of the neurotoxic dinoflagellate Alexandrium catenella have been documented in Pacific Arctic waters, and the paralytic shellfish toxins (PSTs) that this species produces have been detected throughout the food web. These observations have raised significant concerns about the role that harmful algal blooms (HABs) will play in a rapidly changing Arctic. During a research cruise in summer 2022, a massive bloom of A. catenella was detected in real time as it was advected through the Bering Strait region. The bloom was exceptional in both spatial scale and density, extending > 600 km latitudinally, reaching concentrations > 174,000 cells L−1, and producing high‐potency PST congeners. Throughout the event, coastal stakeholders in the region were engaged and a multi‐faceted community response was mobilized. This unprecedented bloom highlighted the urgent need for response capabilities to ensure safe utilization of critical marine resources in a region that has little experience with HABs.

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追踪大规模高毒性北极藻华：快速检测和风险交流

近年来，在北极太平洋水域发现了神经毒性甲藻亚历山大藻（Alexandrium catenella）的大量繁殖，而且在整个食物网中都检测到了该物种产生的麻痹性贝类毒素（PSTs）。这些观察结果引起了人们对有害藻华（HABs）在迅速变化的北极地区所扮演角色的极大关注。在 2022 年夏季的一次考察航行中，在白令海峡地区实时检测到了大规模的 A. catenella 藻华。藻华的空间规模和密度都非常大，纬度延伸了 600 公里，浓度达到 174,000 cells L-1，并产生了高浓度的 PST 同系物。在整个事件过程中，该地区的沿海利益相关者都参与其中，并动员了多方面的社区应对措施。这次史无前例的藻华突显了对应对能力的迫切需求，以确保在一个对有害藻华缺乏经验的地区安全利用重要的海洋资源。

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来源期刊

Limnology and Oceanography Letters Multiple-

CiteScore

10.00

自引率

3.80%

发文量

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.