气候变化领域集成服务门户(CCPortal): Dinoflagellate cysts and ENSO-PDO climate forcing in the southern Gulf of California

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DOI	10.1016/j.palaeo.2020.110055
	Dinoflagellate cysts and ENSO-PDO climate forcing in the southern Gulf of California
	Duque-Herrera A.-F.; Helenes J.; Flores-Trujillo J.-G.; Ruiz-Fernández A.-C.; Sánchez-Cabeza J.-A.
发表日期	2020
ISSN	0031-0182
卷号	560
英文摘要	This paper presents a high-resolution analysis of dinoflagellate cyst groups (1959 to 2009), in the southern Gulf of California (GoC). We analyzed 100 samples of laminated sediments with an effective sampling resolution of ~7 months. Our primary goal is to clarify the relation between changes in these groups and the climate forcing defined by the El Niño Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO) indices. Principal component analysis indicates three groups (A1, A2, and A3). A1 and A3 are mostly constituted by dinoflagellate cysts of heterotrophic taxa, while A2 is composed mainly of autotrophic taxa. Strong El Niño events decrease the contribution of all dinoflagellate cyst groups, while extreme La Niña events increase the contribution of the A2 and A3 groups. Also, the PDO modulates the marine productivity in the southern GoC, with cold phases increasing productivity, while the warm stages decrease productivity. As with climatic events in the southern GoC, autotrophic and heterotrophic taxa of dinoflagellate cysts respond clearly, when PDO and ENSO are in phase. Finally, dinoflagellate cyst concentrations in laminated sediments can be used regionally, as a chronostratigraphic tool in the last 50 years. © 2020 Elsevier B.V.
英文关键词	Climatic events; El Niño-Southern Oscillation; Laminated sediments; Marine primary productivity; Pacific Decadal Oscillation; Pescadero Basin
语种	英语
scopus关键词	climate forcing; dinoflagellate cyst; El Nino-Southern Oscillation; La Nina; marine sediment; Pacific Decadal Oscillation; Gulf of California; Pacific Ocean; Dinophyceae
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150281
作者单位	Departamento de Geología, Ciencias de la Tierra, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana, no. 3918, Zona Playitas, Ensenada, Baja California CP 22860, Mexico; Dependencia Académica de Ingeniería y Tecnología, Universidad Autónoma del Carmen, Calle 56, no. 4, Esquina Av. Concordia, Ciudad del Carmen, Campeche CP 24180, Mexico; Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Av. Joel Montes Camarena S/N, Mazatlán, Sinaloa CP 82040, Mexico; Unidad Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico City, CP 04510, Mexico
推荐引用方式 GB/T 7714	Duque-Herrera A.-F.,Helenes J.,Flores-Trujillo J.-G.,et al. Dinoflagellate cysts and ENSO-PDO climate forcing in the southern Gulf of California[J],2020,560.
APA	Duque-Herrera A.-F.,Helenes J.,Flores-Trujillo J.-G.,Ruiz-Fernández A.-C.,&Sánchez-Cabeza J.-A..(2020).Dinoflagellate cysts and ENSO-PDO climate forcing in the southern Gulf of California.Palaeogeography, Palaeoclimatology, Palaeoecology,560.
MLA	Duque-Herrera A.-F.,et al."Dinoflagellate cysts and ENSO-PDO climate forcing in the southern Gulf of California".Palaeogeography, Palaeoclimatology, Palaeoecology 560(2020).