Comparative molecular biomarker assessment of phytoplankton paleoproductivity for the last 160kyr off Cap Blanc, NW Africa

Zhao, Meixun; Mercer, J. L.; Eglinton, G.; Higginson, M. J.; Huang, Chi‐Yue

doi:10.1016/j.orggeochem.2005.08.022

Cited by 88 publications

(51 citation statements)

References 131 publications

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“…It can be inferred from their data that diatom contribution to total productivity was lower during the glacials when the total productivity was higher, and its contribution was higher during the interglacials when total productivity was lower. This inference is in contrast with most published results, which suggest increased diatom contribution when productivity was higher (Werne et al 2000), but is in agreement with the ODP 658C record from the sub-tropical NE Atlantic (Zhao et al 2006b). The MD972142 results nicely demonstrate that more records using biomarkers as community structure proxies can help resolve some of these questions.…”

supporting

confidence: 56%

Introduction to the Special Section “Proxy Records and Mechanistic Studies of the Late Quaternary Paleoceanography of the Western Pacific Marginal Seas Using IMAGES Cores”

Zhao¹,

Chen²,

Beaufort³

2008

Terr. Atmos. Ocean. Sci.

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The western Pacific Ocean plays an important role in regulating and modulating the global climate system on interannual to geological timescales. Excellent records have been acquired by coring high sedimentation rate sites in the marginal seas of the western Pacific Ocean during IMAGES cruises. This special section has been proposed to publish papers presenting high-resolution records and the interpretation of climate change mechanisms revealed by these records.Chen et al. (2008) O record (100, 41, and 23 kyr cycles), cross-spectral analyses of the other proxy time series revealed different patterns separated by the MidBrunhes (MIS 13 -10, 535 -333 ka). The sediment coarse fraction and color (both are carbonate preservation proxies) both show relatively stronger powers at the 41-kyr band, and coherence among various proxies is relatively high, before the Mid-Brunhes. After the Mid-Brunhes, 100-kyr periodicity dominated both the d 18

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supporting

confidence: 56%

Introduction to the Special Section “Proxy Records and Mechanistic Studies of the Late Quaternary Paleoceanography of the Western Pacific Marginal Seas Using IMAGES Cores”

Zhao¹,

Chen²,

Beaufort³

2008

Terr. Atmos. Ocean. Sci.

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“…These compounds are useful biomarkers to reflect the corresponding phytoplankton biomass in the euphotic layer (Schubert et al, 1998;Xing et al, 2011c;Zhao et al, 2006). The total contents of these lipids (SA þ B þ D) have also been proposed as a reliable indicator of MOM to distinguish them from total sedimentary OM (Ikehara et al, 2000;Xing et al, 2011b).…”

Section: Linkage Between Meo/oh-bdes and Marine Producersmentioning

confidence: 99%

Major sources of MeO/OH-BDEs in the East China Sea elucidated from their records and phytoplankton biomarkers

Fan

Huh

Lan

et al. 2014

Environmental Pollution

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“…[48] Thus, their individual and total contents are reliable indicators for reflecting the biomass of corresponding producer and primary productivity in the euphotic layer. [29,30,38,44] These three PBs were also detected in all sediment samples. Correlation analysis shows that there are significant positive correlations between the contents of most compounds (Table 2), except for 2 0 -OH-BDE68 and brassicasterol, as well as alkenones.…”

Section: Resultsmentioning

confidence: 73%

“…[28] In marine environments, total and specific phytoplankton productivity can be reflected by sedimentary phytoplankton biomarkers (PBs) such as chlorins, loliolide, isololiolide, sterols, alkenones and alkyl diols. [29][30][31] Based on 14 C isotope analysis, Guitart et al [19] proposed that there are unidentified producers thriving on the surface of the ocean as planktonic organisms and synthesising MeO-PBDEs and OHPBDEs. Considering many MeO-PBDEs and OH-PBDEs have been isolated from algae, the relationships between these brominated compounds and PBs derived from once-living phytoplankton, which is the foundation of the marine food web, may provide valuable information to better understand the origins of these brominated compounds.…”

mentioning

confidence: 99%

Methoxylated and hydroxylated polybrominated diphenyl ethers in surface sediments from the southern Yellow Sea: spatial distribution and potential producers

Fan¹,

Lan²,

Wang³

et al. 2015

Environ. Chem.

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Environmental context. Methoxylated and hydroxylated polybrominated diphenyl ethers are of increasing concern owing to their global distribution and potential ecological risks. We investigated the spatial distribution and sources of these brominated compounds in surface sediments from the southern Yellow Sea, China. The results suggest that marine phytoplankton may be the potential producers of these compounds, thereby providing new insights into their occurrence and provenance in marine environments.Abstract. Methoxylated polybrominated diphenyl ethers (MeO-PBDEs) and hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have recently caused worldwide concern; however, there have been very limited studies on their presence in marine sediments. In the present study, MeO-PBDEs, OH-PBDEs and phytoplankton biomarkers were determined in surface sediments from the southern Yellow Sea. MeO-PBDEs and OH-PBDEs are ubiquitous in southern Yellow Sea sediments, with total contents ranging from 43.0 to 571.4 pg g À1 dry weight. High contents of these compounds mainly concentrated in the central southern Yellow Sea basin, and their spatial distributions generally presented a seaward-increasing trend. By comparing with total organic carbon and terrestrial organic matter contributions in sediments, these compounds were inferred to originate mainly from marine production rather than from terrigenous inputs. Statistical analysis shows that there are significant correlations between MeO-PBDEs, OH-PBDEs and phytoplankton biomarkers, indicating that MeO-PBDEs and OH-PBDEs are mainly natural compounds, and the phytoplankton are likely to be their potential producers in the southern Yellow Sea, especially for dinosterol.

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Comparative molecular biomarker assessment of phytoplankton paleoproductivity for the last 160kyr off Cap Blanc, NW Africa

Cited by 88 publications

References 131 publications

Introduction to the Special Section “Proxy Records and Mechanistic Studies of the Late Quaternary Paleoceanography of the Western Pacific Marginal Seas Using IMAGES Cores”

Introduction to the Special Section “Proxy Records and Mechanistic Studies of the Late Quaternary Paleoceanography of the Western Pacific Marginal Seas Using IMAGES Cores”

Major sources of MeO/OH-BDEs in the East China Sea elucidated from their records and phytoplankton biomarkers

Methoxylated and hydroxylated polybrominated diphenyl ethers in surface sediments from the southern Yellow Sea: spatial distribution and potential producers

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