Basin-Scale Coherence in Phenology of Shrimps and Phytoplankton in the North Atlantic Ocean
Basin-Scale Coherence in Phenology of Shrimps and Phytoplankton in the North Atlantic Ocean
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DOI：
10.1126/science.1170987
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发表时间：
2009-05
期刊：
影响因子：
56.9
通讯作者：
P. Koeller;C. Fuentes-yaco;T. Platt;S. Sathyendranath;A. Richards;P. Ouellet;D. Orr;U. Skúladóttir;K. Wieland;L. Savard;M. Aschan
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文献类型：
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作者：
P. Koeller;C. Fuentes-yaco;T. Platt;S. Sathyendranath;A. Richards;P. Ouellet;D. Orr;U. Skúladóttir;K. Wieland;L. Savard;M. Aschan
在过去的十年里，我们对气候异常如何影响北大西洋陆架生态系统的水文特性的理解有了巨大的增长，但对这些事件如何影响生物的理解却很少。Koeller等人（第791页，参见Greene等人的观点）在不同地点测量了北大西洋粉红虾这一重要渔业资源的卵孵化和孵化时间，并将其与当地春季浮游植物繁殖的时间进行了比较。虾的繁殖在当地是由底水温决定的，与春季水华没有直接关系。虽然当地的底部温度和开花时间总体上是匹配的，并且鸡蛋孵化与食物供应是匹配的，但这种进化的关系可以通过年际变化和气候变化来解耦。虾的繁殖是由海底温度决定的，而不是直接受春季浮游植物繁殖的影响。气候变化可能导致海洋生物的繁殖周期与其浮游生物食物之间的不匹配。我们通过比较整个北大西洋的虾（Pandalus borealis）卵孵化时间和卫星衍生的浮游植物繁殖动态来验证这一假设。在大空间和长时间（10年或更长）尺度上，孵化与春季浮游植物繁殖的时间相关。每年的卵发育和孵化时间由当地的底水温决定。我们得出的结论是，不同的北方圆叶藻种群已经适应了当地的温度和开花时间，在平均条件下，鸡蛋孵化与食物供应相匹配。这一战略容易受到年际海洋变率和长期气候变化的影响。
Fine-Tuning Fisheries The past decade has seen a tremendous increase in our understanding of how climate anomalies affect hydrographic properties in North Atlantic Shelf ecosystems, but less about how these events impact organisms. Koeller et al. (p. 791, see the Perspective by Greene et al.) measured the egg incubation and hatching times of an important fisheries resource, the pink North Atlantic shrimp, at a variety of locations and compared them to the timing of the local spring phytoplankton bloom. Shrimp reproduction was determined locally by bottom-water temperatures and was not directly coupled with the spring bloom. While the local bottom temperatures and bloom timing are well-matched in general, and match egg hatching to food availability, this evolved relationship can be decoupled by interannual variability and climate change. Shrimp reproduction is primed by bottom temperature and not directly by cues from the spring phytoplankton bloom. Climate change could lead to mismatches between the reproductive cycles of marine organisms and their planktonic food. We tested this hypothesis by comparing shrimp (Pandalus borealis) egg hatching times and satellite-derived phytoplankton bloom dynamics throughout the North Atlantic. At large spatial and long temporal (10 years or longer) scales, hatching was correlated with the timing of the spring phytoplankton bloom. Annual egg development and hatching times were determined locally by bottom water temperature. We conclude that different populations of P. borealis have adapted to local temperatures and bloom timing, matching egg hatching to food availability under average conditions. This strategy is vulnerable to interannual oceanographic variability and long-term climatic changes.