Centennial- to millennial-scale change of Holocene shallow marine environments recorded in ostracode fauna, northeast Japan

Irizuki, Toshiaki; Kobe, Miki; Ohkushi, Ken’ichi; Kawahata, Hodaka; Kimoto, Katsunori

doi:10.1016/j.yqres.2015.10.006

Cited by 11 publications

(7 citation statements)

References 70 publications

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“…This species inhabits the Great Bay in Russia, at water depths of 13.5-72.5 m and water temperatures of 1.71-17.85°C (Schornikov and Zenina 2014). It lives where summer water temperatures are < 22°C and winter water temperatures are < 7°C (Ozawa et al 2004); therefore, the VF1 tends to decrease as the SST increases (Irizuki et al 2015). The profile (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…2e). Q-mode factor analysis using an ostracod proportion matrix determined that the first factor (VF1) accounts for 59.7% of the total variance and was characterized by highly positive factor scores of cryophilic bay species, such as Yezocythere hayashii (Irizuki et al 2015). This species inhabits the Great Bay in Russia, at water depths of 13.5-72.5 m and water temperatures of 1.71-17.85°C (Schornikov and Zenina 2014).…”

Section: Resultsmentioning

confidence: 99%

“…Temperature is one of the most important environmental parameters. Alkenone sea surface temperatures (SST) and Ostracoda assemblages suggest warmer environments in the latter half of the period, between early Bond event 4 and late Bond event 3 in Mutsu Bay (Kawahata et al 2009b;Irizuki et al 2015). In contrast, the relative abundance of Castanea suggests colder environments in the same period ( Fig.…”

Section: Problematicmentioning

confidence: 99%

“…Fig. 2 Time series records of a alkenone SSTs and estimated ATs in Mutsu Bay with age-controlling points represented in solid reversed triangles (Kawahata et al 2009b); b alkenone SSTs and ATs at St. 5 Funka Bay (Kawahata 2017); c content of hematite-stained grains as drift ice indices in the north Atlantic with the number of Bond events (Bond et al 1997); d relative abundances of Emiliania huxleyi and Gephyrocapsa oceanica; e the first factor (VF1) of ostracods (Irizuki et al 2015); f δ 18 O values of benthic foraminifera (Nonionella stella (Cushman) and Nonionellina labradorica (Dawson)); g δ 13 C values of benthic foraminifera (N. stella (Cushman) and N. labradorica (Dawson)); h relative abundances of Castanea, Picea, and Abies (Kawahata et al 2009b); i Gini-Simpson index for pollen (upper: including Castenea, lower: excluding Castenea); and j accumulation rate of alkenone (Kawahata et al 2009b). In the upper column, periods are classified based on the SST: periods 8 (8.3-7.9 cal.…”

Section: Study Area and Materialsmentioning

confidence: 99%

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Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Kawahata

2019

Prog Earth Planet Sci

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The Jōmon period/culture corresponds to the Neolithic period/culture in Japanese prehistory. The Sannai-Maruyama site (5.9-4.2 cal. kyr BP), the most famous, the largest, and the well-studied mid-Holocene (mid-Jōmon) archeological site inhabited by hunter-gatherers with sedentary lifestyle in northern Japan, started at early Bond event 4 and collapsed at late Bond event 3 (4.2 cal. kyr BP at the boundary between mid-Holocene, Northgrippian, and late-Holocene, Meghalayan), synchronous with the decline of the north Mesopotamian civilization and the Yangtze River civilization in China. Alkenone sea surface temperatures (SSTs), a proxy for early-midsummer SSTs, generally suggest that the early-midsummer SSTs (and atmospheric temperatures (ATs)) at 41°00′ N, 140°46′ E, about 20 km north to the Sannai-Maruyama site, located in Aomori Prefecture, peaked around 4.8-4.3 cal. kyr BP and showed minima at 5.9 and 4.1 cal. kyr BP. In spite of some discrepancy in short periods, this feature is consistent with that estimated from the assemblages of Ostracodas. δ 18 O value of benthic foraminifera of Nonionellina labradorica and Nonionella stella, alkenone production flux, and pollen assemblages could reflect annual-based temperature, which generally suggests that the climate was warmer at 6.0-4.2 cal. kyr BP, which could show the warmer environments at 6.0-5.0 cal. than expected from alkenone SST in early-midsummer. Overall, northward shift of the westerly jet, in association with a strengthened East Asian Summer Monsoon, could cause a relatively warm climate around 6.0-4.3 cal. kyr BP, when the Sannai-Maruyama site flourished. High food production density, by effective hansaibai (selective preservation or growth) in Castanea-and Aesculus-dominated forests, up to one sixth of the rice production density, could have supported high population density, resulting large community at the Sannai-Maruyama site. Cooling episode at 4.2 cal. kyr BP could have resulted in the decline of chestnut hansaibai, leading to the collapse of the site. Recent results from a compiled archeological site map suggested no large decline of the population but, instead, a dispersal to the surrounding area at 4.2 cal. kyr BP. It is consistent with ancestral population dynamics for the descendent from Jōmon people, in contrast to those from the immigrants from Far East Asia to the Japanese Archipelago with paddy rice cultivation technology after 2.9 cal. kyr BP, based on modern Japanese molecular sequences.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Problematicmentioning

confidence: 99%

Section: Study Area and Materialsmentioning

confidence: 99%

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Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Kawahata

2019

Prog Earth Planet Sci

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“…Published by Copernicus Publications on behalf of the European Geosciences Union. (Alberti et al, 2013;Dong et al, 2012;Irizuki et al, 2015b;Tanaka et al, 2011;Yasuhara and Seto, 2006;Zhou et al, 2015;Wang et al, 2018). Due to high sedimentation rates ( > 1 cm year −1 ), fossil ostracods from these sediments allow for the high-resolution reconstruction of human-induced environmental changes (pollution, eutrophication, bottom oxygen depletion) over the past century (Irizuki et al, 2011(Irizuki et al, , 2015a(Irizuki et al, , 2018Yasuhara et al, 2003Yasuhara et al, , 2007.…”

Section: Introductionmentioning

confidence: 99%

Baseline for ostracod-based northwestern Pacific and Indo-Pacific shallow-marine paleoenvironmental reconstructions: ecological modeling of species distributions

et al. 2019

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Abstract. Fossil ostracods have been widely used for Quaternary paleoenvironmental reconstructions, especially in marginal marine environments (e.g., for water depth, temperature, salinity, oxygen levels, pollution). But our knowledge of indicator species autoecology, the base of paleoenvironmental reconstructions, remains limited and commonly lacks robust statistical support and comprehensive comparison with environmental data. We analyzed marginal marine ostracod taxa at 52 sites in Hong Kong for which comprehensive environmental data are available. We applied linear regression models to reveal relationships between species distribution and environmental factors for 18 common taxa (mainly species, a few genera) in our Hong Kong dataset and identified indicator species of environmental parameters. For example, Sinocytheridea impressa, a widely distributed euryhaline species throughout the East and South China Sea and the Indo-Pacific, indicates eutrophication and bottom-water hypoxia. Neomonoceratina delicata, a widely known species from nearshore and estuarine environments in the East and South China Sea and the Indo-Pacific, indicates heavy metal pollution and increased turbidity. The 18 taxa used for this study are widely distributed geographically and divided into the following groups: widespread (throughout the northwestern Pacific and Indo-Pacific regions), temperate (South China Sea to Russia (Sea of Japan coast) and Japan), subtropical (Indo-Pacific to the East China Sea), tropical (Indo-Pacific and South China Sea), and globally distributed. With statistical support from ecological modeling and comprehensive environmental data, these results provide a robust baseline for ostracod-based Quaternary–Anthropocene paleoenvironmental reconstructions in the tropical–extratropical northwestern Pacific and Indo-Pacific. Highlights. We provide a robust baseline for ostracod-based (microscopic Arthropods) paleoenvironmental reconstructions from Quaternary and Anthropocene marginal marine sediments. The studied species have wide distributions over the tropics and extratropics of the northwestern Pacific and Indo-Pacific. Ecological modeling has established ostracod species as reliable indicators for paleoenvironmental reconstructions.

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Biotic response of benthic foraminifera to OMZ variations in the northwestern Pacific since the last deglaciation

2021

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Centennial- to millennial-scale change of Holocene shallow marine environments recorded in ostracode fauna, northeast Japan

Cited by 11 publications

References 70 publications

Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Baseline for ostracod-based northwestern Pacific and Indo-Pacific shallow-marine paleoenvironmental reconstructions: ecological modeling of species distributions

Biotic response of benthic foraminifera to OMZ variations in the northwestern Pacific since the last deglaciation

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