气候变化领域集成服务门户(CCPortal): Fish scale deposition rates and export production from 1860 to 2005 AD off Peru

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.888404
	Fish scale deposition rates and export production from 1860 to 2005 AD off Peru
	Salvatteci; Renato; Field; David; Gutièrrez; Dimitri; Baumgartner; Tim; Ferreira; Leonardo V; Ortlieb; Luc; Sifeddine; Abdelfettah; Grados; Carmen; Bertrand; Arnaud
发布日期	2018-04-11
数据集类型	dataset
英文简介	The Humboldt Current System (HCS) has the highest production of forage fish in the world, although it is highly variable and the future of the primary component, anchovy, is uncertain in the context of global warming. Paradigms based on late 20th century observations suggest that large-scale forcing controls decadal-scale fluctuations of anchovy and sardine across different boundary currents of the Pacific. We develop records of anchovy and sardine fluctuations since 1860 AD using fish scales from multiple sites containing laminated sediments and compare them with Pacific basin-scale and regional indices of ocean climate variability. Our records reveal two main anchovy and sardine phases with a timescale that is not consistent with previously proposed periodicities. Rather, the regime shifts in the HCS are related to 3D habitat changes driven by changes in upwelling intensity from both regional and large-scale forcing. Moreover, we show that a long-term increase in coastal upwelling translates via a bottom-up mechanism to top predators suggesting that the warming climate, at least up to the start of the 21st century, was favorable for fishery productivity in the HCS.
空间范围	Median Latitude: -13.559265 * Median Longitude: -76.225765 * South-bound Latitude: -14.131700 * West-bound Longitude: -76.501700 * North-bound Latitude: -12.000000 * East-bound Longitude: -76.000000
时间范围	1860-01-01T00:00:00 - 2015-01-01T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215247
推荐引用方式 GB/T 7714	Salvatteci,Renato,Field,et al. Fish scale deposition rates and export production from 1860 to 2005 AD off Peru.2018-04-11.https://doi.org/10.1594/PANGAEA.888404.