Arctica islandica (Bivalvia): A unique paleoenvironmental archive of the northern North Atlantic Ocean
Arctica islandica (Bivalvia): A unique paleoenvironmental archive of the northern North Atlantic Ocean
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DOI：
10.1016/j.gloplacha.2013.09.013
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发表时间：
2013-12
影响因子：
3.9
通讯作者：
B. Schöne
中科院分区：
文献类型：
--
作者：
B. Schöne
仪器时代之前北大西洋温带地区的高分辨率环境代理数据对于破译全球变化的进程和机制至关重要。在这方面，寿命极长的双壳软体动物Arctica Island andica(Linneeus，1767)的贝壳在过去十年中受到特别关注，因为它们是该区域环境变异性的可靠、分季节分解的多代理档案。岛龙是世界上寿命最长的独居动物，寿命超过500年。它的外壳在整个生命周期中都会周期性地增长，并包含明显的年度和每日增长增量。这些生长模式就像一个日历，可以用来将每个贝壳部分置于精确的时间背景中。此外，不断变化的环境条件以可变增量宽度和地球化学性质的形式编码在贝壳中。通过交叉测年，不同标本的生长增量宽度年表可以组合成更长的时间序列，即所谓的复合或主年表，涵盖数百年到数千年和许多世代的双壳类。本文综述了对该物种的研究，特别是利用同位素、痕量元素和微量元素重建长期气候和环境以及贝壳生长的变化。这项审查还强调了解释从MA获得的代理数据所涉及的挑战。并确定了未来的研究需要。a.岛屿不容易揭示其秘密。它需要一种全面的方法来解锁存储在其外壳中的多代理记录。本文的目的是提高对这一高潜力自然档案的认识，并鼓励未来的跨学科研究。
High-resolution environmental proxy data from the extratropical North Atlantic prior to the instrumental era are of critical importance to decipher processes and mechanisms of global change. In this regard, shells of the extremely long-lived bivalve mollusc,Arctica islandica(Linnaeus, 1767), have gained particular attention during the last decade because they serve as reliable, subseasonally resolved multi-proxy archives of environmental variability in that very region. With a lifespan of more than 500 years,A. islandicais the longest-lived solitary animal. Its shell grows periodically throughout life and contains distinct annual and daily growth increments. These growth patterns function as a calendar that can be used to place each shell portion into a precise temporal context. Furthermore, changing environmental conditions are encoded in the shells in the form of variable increment widths and geochemical properties. By means of cross-dating, growth increment width chronologies from different specimens can be combined into much longer time-series, so-called composite or master chronologies, covering centuries to millennia and many generations of bivalves.The present paper provides a comprehensive review of research on this species with a special focus on long-term climate and environmental reconstructions using isotopes, trace and minor elements and variations in shell growth. This review also highlights challenges involved with the interpretation of proxy data obtained fromA. islandicaand identifies future research needs.A. islandicadoes not easily reveal its secrets. It needs a holistic approach to unlock the multi-proxy records stored in their shells. The goal of this paper is to increase the recognition of this high-potential natural archive and encourage future interdisciplinary research.