Investigating the influence of temperature and seawater δ18O on Donax obesulus (Reeve, 1854) shell δ18O

Investigating the influence of temperature and seawater δ18O on Donax obesulus (Reeve, 1854) shell δ18O
复制标题

研究温度和海水 δ18O 对 Donax obesulus (Reeve, 1854) 壳 δ18O 的影响

DOI:
10.1016/j.chemgeo.2021.120638
复制
发表时间:
2022
期刊:
影响因子:
3.9
通讯作者:
Andrus, C. Fred
Andrus, C. Fred
中科院分区:
地球科学2区
文献类型:
--
作者:
Warner, Jacob P.;DeLong, Kristine L.;Chicoine, David;Thirumalai, Kaustubh;Andrus, C. Fred

文献摘要

参考文献

被引文献

相似文献

秘鲁的海岸线缺乏对古气候重建有用的长寿海洋生物,这就需要新的档案。短寿命(<5年)的双壳类通常在地质和考古沉积物中发现,因此可以提供过去气候变化的“快照”(即,季节范围),类似于通过个体有孔虫分析获得的数据,而不是连续的、交叉日期的时间序列(例如,树木和珊瑚)。以前的研究已经成功地使用了短命的潮间带蛤Mesodesma donacium。然而,M. donacium很容易死于与厄尔尼诺事件有关的温暖的海面温度(SST),并在北方秘鲁功能灭绝,从而限制了该地区的现代类似研究的可能性。在这里,我们调查了短寿命(1-3年)的冲浪蛤,水鱼obesulus,常见于北方秘鲁,作为一个古气候archive.Donax obesuluspopulations是能够生存的温暖的SST在厄尔尼诺年期间,虽然他们是脆弱的冷SST与拉尼娜。我们评估了2012年(拉尼娜)、2014年(ENSO中性)和2016年(厄尔尼诺)从秘鲁Nepeña山谷附近的鱼市和沿海海滩收集的活贝壳中的沙田螺δ 18 O亚年度变化的环境驱动因素。假壳层δ 18 O的正演模拟表明,SST变化是主要驱动因素,其次是季节性变化的海水δ 18 O(δ 18 Osw)。通过考虑δ 18 Osw的变化,我们分离出温度相关变量,从而福特的古温度方程。obesulusδ18O。我们用aD的δ ~(18)O记录验证了我们的结果。obesulusshell于2006年收集。研究结果表明,我们建立的古温度方程对重建该地区与厄尔尼诺-南方涛动(ENSO)相关的气候变化是有用的,而拟壳方法可能对理解其他地区壳δ 18 O是有用的。
The coastline of Peru lacks long-lived marine organisms useful for paleoclimatic reconstructions generating a need for novel archives. Short-lived (<5 years) bivalves are commonly found in geological and archaeological deposits and thus can provide “snapshots” of past climatic variability (i.e., seasonal range), similar to data obtained by individual foraminifera analysis, rather than continuous, cross-dated time series (e.g., trees and corals). Previous studies have found success using the short-lived intertidal clamMesodesma donacium. However,M. donaciumare vulnerable to die-offs from the warmer sea surface temperatures (SST) associated with El Niño events and are functionally extinct in northern Peru thus limiting the possibility of modern analog studies for that region. Here we investigate the short-lived (1–3 years) surf clam,Donax obesulus, commonly found in northern Peru, as a paleoclimate archive.Donax obesuluspopulations are able to survive the warmer SSTs present during El Niño years although they are vulnerable to colder SSTs associated with La Niñas. We assessed the environmental drivers underlying subannual δ18O variability inD. obesulusfrom live collected shells from fish markets and coastal beaches near the Nepeña Valley, Peru in 2012 (La Niña), 2014 (ENSO-neutral), and 2016 (El Niño). Forward modeling of pseudo-shell δ18O reveals that SST variations are a dominant driver with secondary contributions from seasonally-varying seawater δ18O (δ18Osw). By accounting for varying δ18Osw, we isolated the temperature dependent variable resulting in a paleotemperature equation forD. obesulusδ18O. We verified our results with the δ18O record of aD. obesulusshell collected in 2006. Our results suggest that the paleotemperature equation we developed is useful for reconstructing El Niño-Southern Oscillation (ENSO)-related climatic variations in this region and the pseudo-shell approach may be useful for understanding shell δ18O in other locations.
DOI: 10.1016/j.palaeo.2013.05.029
发表时间: 2013-09
期刊: Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子: --
作者:
D. Reynolds;P. Butler;Siobhan Williams;J. Scourse;C. Richardson;A. Wanamaker;W. Austin;A. Cage;M. Sayer
通讯作者: D. Reynolds;P. Butler;Siobhan Williams;J. Scourse;C. Richardson;A. Wanamaker;W. Austin;A. Cage;M. Sayer
上升流海湾:沿海上升流如何控制海湾的环流、栖息地和生产力。
DOI: --
发表时间: 2020
影响因子: 17.3
作者:
J. Largier
通讯作者: J. Largier
DOI: 10.1016/j.palaeo.2011.05.005
发表时间: 2011-07-01
影响因子: 3
作者:
DeLong, Kristine L.;Flannery, Jennifer A.;Quinn, Terrence M.
通讯作者: Quinn, Terrence M.
DOI: --
发表时间: 2000-01
影响因子: --
作者:
R. Morton;Juan L. González;G. López;I. Correa
通讯作者: R. Morton;Juan L. González;G. López;I. Correa
DOI: --
发表时间: 1987
期刊:
影响因子: --
作者:
W. Arntz;T. Brey;J. Tarazona;A. Robles
通讯作者: A. Robles