Windows of vulnerability: Seasonal mismatches in exposure and resource identity determine ocean acidification’s effect on a primary consumer at high latitude
Windows of vulnerability: Seasonal mismatches in exposure and resource identity determine ocean acidification’s effect on a primary consumer at high latitude
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脆弱性之窗：暴露和资源特性的季节性不匹配决定了海洋酸化对高纬度主要消费者的影响
DOI：
10.1111/gcb.15449
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发表时间：
2020
影响因子：
11.6
通讯作者：
Donham, Emily M.
中科院分区：
文献类型：
--
作者：
Kroeker, Kristy J.;Powell, Cassandra;Donham, Emily M.
众所周知，消费者在波动的环境中使用的线索及其资源的差异可能会导致营养失配，从而控制全球变化的紧急影响。在资源匮乏时期，消费者能量变化引起的营养失配受到的关注要少得多，尽管这对于初级生产者受到光照限制的冬季消费者来说可能很常见。人们对海洋生态系统中的这些动态知之甚少，消费者必须应对二氧化碳驱动的碳酸盐化学变化，这种变化在寒冷的温度下最为明显，这种变化在能源上代价高昂。这对于钙化海洋食草动物尤其重要，例如斑鲍（Haliotis kamschatkana）。由于活跃的休闲渔业及其在传统文化中的重要性，堪察加纳鱼在北太平洋受到高度管理关注，研究表明，随着海洋酸化，它们可能需要更多的能量来维持其钙化贝壳和酸/碱平衡。在这里，我们利用实地调查来证明冬季亚极地海洋生态系统中海洋消费者暴露于低 pH 值和藻类资源特性的季节性不匹配。然后，我们使用这些数据来测试暴露于季节性相关 pH 条件对 H 的影响。堪察加纳是由季节性资源身份调节的。我们发现，暴露在预计的未来冬季 pH 条件下会降低新陈代谢和生长，当它们的饮食仅限于冬季可用的藻类物种时，这种对生长的影响就很明显。我们的研究结果表明，冬季海洋酸化引起的斑鲍鱼能量需求的增加将因其资源的季节性变化而加剧。这些发现对其他海洋消费者具有深远的影响，并强调在推断全球变化的紧急影响时考虑暴露和资源波动的重要性。
It is well understood that differences in the cues used by consumers and their resources in fluctuating environments can give rise to trophic mismatches governing the emergent effects of global change. Trophic mismatches caused by changes in consumer energetics during periods of low resource availability have received far less attention, although this may be common for consumers during winter when primary producers are limited by light. Even less is understood about these dynamics in marine ecosystems, where consumers must cope with energetically costly changes in CO2‐driven carbonate chemistry that will be most pronounced in cold temperatures. This may be especially important for calcified marine herbivores, such as the pinto abalone (Haliotis kamschatkana).H. kamschatkanaare of high management concern in the North Pacific due to the active recreational fishery and their importance among traditional cultures, and research suggests they may require more energy to maintain their calcified shells and acid/base balance with ocean acidification. Here we use field surveys to demonstrate seasonal mismatches in the exposure of marine consumers to low pH and algal resource identity during winter in a subpolar, marine ecosystem. We then use these data to test how the effects of exposure to seasonally relevant pH conditions onH. kamschatkanaare mediated by seasonal resource identity. We find that exposure to projected future winter pH conditions decreases metabolism and growth, and this effect on growth is pronounced when their diet is limited to the algal species available during winter. Our results suggest that increases in the energetic demands of pinto abalone caused by ocean acidification during winter will be exacerbated by seasonal shifts in their resources. These findings have profound implications for other marine consumers and highlight the importance of considering fluctuations in exposure and resources when inferring the emergent effects of global change.
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影响因子：
8.8
作者：
Kroeker, Kristy J.;Sanford, Eric;Washburn, Libe
通讯作者：
Washburn, Libe
DOI：
10.1098/rstb.2012.0438
发表时间：
2013-10
期刊：
Philosophical Transactions of the Royal Society B: Biological Sciences
影响因子：
--
作者：
B. Russell;S. Connell;H. Findlay;K. Tait;S. Widdicombe;N. Mieszkowska
通讯作者：
B. Russell;S. Connell;H. Findlay;K. Tait;S. Widdicombe;N. Mieszkowska
在前线：跟踪阿拉斯加贝类孵化场的海洋酸化
影响因子：
3.7
作者：
W. Evans;J. Mathis;J. Ramsay;Jeff Hetrick
通讯作者：
Jeff Hetrick
阿拉斯加渔业部门的海洋酸化风险评估
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
J. Mathis;S. Cooley;Noelle M. Lucey;S. Colt;J. Ekstrom;T. Hurst;C. Hauri;W. Evans;J. Cross;R. Feely
通讯作者：
R. Feely
影响因子：
4.6
作者：
Chan F;Barth JA;Blanchette CA;Byrne RH;Chavez F;Cheriton O;Feely RA;Friederich G;Gaylord B;Gouhier T;Hacker S;Hill T;Hofmann G;McManus MA;Menge BA;Nielsen KJ;Russell A;Sanford E;Sevadjian J;Washburn L
通讯作者：
Washburn L