当前位置: X-MOL 学术Mar. Ecol. Prog. Ser. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Climate alters the migration phenology of coastal marine species
Marine Ecology Progress Series ( IF 2.5 ) Pub Date : 2021-02-18 , DOI: 10.3354/meps13612
JA Langan 1, 2 , G Puggioni 2 , CA Oviatt 1 , ME Henderson 3 , JS Collie 1
Affiliation  

ABSTRACT: Significant shifts in the phenology of life-cycle events have been observed in diverse taxa throughout the global oceans. While the migration phenology of marine fish and invertebrates is expected to be sensitive to climate change, the complex nature of these patterns has made measurement difficult and studies rare. With continuous weekly observations spanning 7 decades in Narragansett Bay, Rhode Island (USA), the University of Rhode Island Graduate School of Oceanography trawl survey provides an unprecedented opportunity to investigate the influence of climate on the migrations of marine species in the northwest Atlantic. Analyses of the survey observations of 12 species indicated that residence periods have changed by as much as 118 d, with shifts in the timing of both ingress to and egress from the coastal zone. The residence periods of warm-water species expanded while those of cold-water species contracted. Dirichlet regressions fit to the annual presence-absence patterns of each species identified interannual temperature variations, fluctuations in ocean circulation, and long-term warming all as having a significant effect on migration phenology. Additionally, temperature gradients within Narragansett Bay were shown by generalized additive models to cause detectable shifts in local spatial distributions during coastal residency. These novel findings mirror results found in the spatial domain and therefore suggest that the studied species are adapting their spatiotemporal distributions to track their thermal niche in a changing climate. If so, characterizing the spatial and temporal aspects of climate responses across species will be critical to understanding ongoing changes in marine ecosystems and successfully managing the fisheries they support.

中文翻译:

气候改变了沿海海洋物种的迁移物候

摘要:在全球海洋的不同分类中,已经观察到生命周期事件的物候发生了重大变化。预计海洋鱼类和无脊椎动物的迁移物候对气候变化敏感,但这些模式的复杂性使测量变得困难,研究也很少。罗德岛大学海洋学研究生院拖网调查在美国罗得岛纳拉甘西特湾进行了连续七周的连续观测,历时7年,拖网调查提供了前所未有的机会来研究气候对西北大西洋海洋物种迁移的影响。对12个物种的调查观察结果的分析表明,居住时间已发生了多达118 d的变化,并且进出沿海区域的时间有所变化。暖水物种的居住期延长,而冷水物种的居住期收缩。Dirichlet回归适合于每个物种的年度存在/缺勤模式,这些模式将年际温度变化,海洋环流波动和长期变暖确定为对迁移物候的重要影响。此外,广义的加性模型显示了纳拉干西特湾内的温度梯度,导致沿海居住期间局部空间分布的可检测变化。这些新颖的发现反映了在空间域中发现的结果,因此表明所研究的物种正在适应其时空分布,以在变化的气候中追踪其热生态位。如果是这样,
更新日期:2021-02-18
down
wechat
bug