Wisconsin—Holocene paleoenvironment of the Bering Sea: Evidence from diatoms, pollen, oxygen isotopes and clay minerals

Sancetta, Constance; Heusser, Linda E.; Labeyrie, Laurent D; Naidu, A. Sathy; Robinson, S.

doi:10.1016/0025-3227(84)90054-9

Cited by 94 publications

(70 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is well known in the Arctic Ocean, e.g., on the continental margin of the Laptev Sea, that sedi ments of cold stadial periods have higher illite content, and those of warm periods have higher smectite content [19]. The same results were reported from the south eastern part of the Bering Sea [20]. The data in Table 3 and Fig.…”

Section: Resultssupporting

confidence: 75%

“…The core was subsampled for analysis at [15][16][17][18][19][20] In wet sieve analysis, the boundaries between gravel, sand, silt, and clay were placed at values of 2, 0.063, and 0.002 mm, respectively. The clay minerals were ana lyzed on a DRON 3M diffractometer with a copper anode, using the technique described by Biscaye [12].…”

Section: Factual Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Late pleistocene sedimentation history of the Shirshov Ridge, Bering Sea

et al. 2013

View full text Add to dashboard Cite

Abstract-The analysis of the lithology, grain size distribution, clay minerals, and geochemistry of Upper Pleistocene sediments from the submarine Shirshov Ridge (Bering Sea) showed that the main source area was the Yukon-Tanana terrane of Central Alaska. The sedimentary materials were transported by the Yukon River through Beringia up to the shelf break, where they were entrained by a strong northwestward flowing sea current. The lithological data revealed several pulses of ice rafted debris deposition, roughly synchronous with Heinrich events, and periods of weaker bottom current intensity. Based on the geochemical results, we distinguished intervals of an increase in paleoproductivity and extension of the oxygen minimum zone. The results suggest that there were three stages of deposition driven by glacioeustatic sea level fluctuations and glacial cycles in Alaska.

show abstract

Section: Resultssupporting

confidence: 75%

Section: Factual Materials and Methodsmentioning

confidence: 99%

Late pleistocene sedimentation history of the Shirshov Ridge, Bering Sea

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Since opal is one of the two most important biogenic components (the other being CaCO 3) in marine sediments in terms of quantity, the influence of opal flux on scavenging of 231pa and l°Be is worth close evaluation. In addition to one core in the Bering Sea (RC14-121) where the Holocene sediment contains a very high diatom content [36], we included two cores (E15-6 and E17-9) in the South Pacific (near the Antarctic) where the opal deposition rate is very high [37,38].…”

Section: Core Selection and Resultsmentioning

confidence: 99%

Transport and burial rates of10Be and231Pa in the Pacific Ocean during the Holocene period

Lao

Anderson

Broecker

et al. 1992

Earth and Planetary Science Letters

View full text Add to dashboard Cite

“…Present-day temperature in the Aleutian passes ranges from 3.68C to 8.28C , and the observed range at inshore spawning sites (3.9-10.58C; Lauth et al 2007ba) indicates a preference for warmer waters. Atka mackerel are highly planktivorous, primarily consuming euphausiids and calanoid copepods (Yang 1999), and severe disruption of oceanic circulation patterns at the LGM greatly limited primary productivity in the North Pacific Ocean and Bering Sea (Sancetta et al 1984).…”

Section: Demography Natural Selection and Contrasting Nuclear And Mmentioning

confidence: 99%

Highly Discordant Nuclear and Mitochondrial DNA Diversities in Atka Mackerel

et al. 2010

View full text Add to dashboard Cite

Abstract.-Levels of neutral genetic diversity largely reflect effective population size (N e ), which is influenced by physical and biological environmental variables. While large populations of marine fishes generally harbor higher diversities than freshwater species, historical demography or the effects of natural selection may significantly reduce N e and differentially affect genomic diversities. Here, we surveyed levels of genetic diversity and examined genetic structure among populations of the Atka mackerel Pleurogrammus monopterygius across most of its geographic range by screening variation at nine nuclear microsatellite DNA markers (n ¼ 745) and in a 468-base-pair segment of the mitochondrial DNA (mtDNA) control region (n ¼ 119). Samples from Japan to the western Gulf of Alaska were collected between 2004 and 2006 at six locations, including temporal replicates at two sites. Microsatellite allele frequency homogeneity across the North Pacific indicated an apparent lack of genetic population substructure. While levels of polymorphism at microsatellite loci were typical for marine fishes (haplotype diversity h ¼ 0.34-0.96), mtDNA control region diversity was extremely low (nucleotide diversity ¼ 0.00007; h ¼ 0.033). Only three mtDNA haplotypes, two occurring as singletons, were detected among 119 individuals. The strong contrast between microsatellite and mtDNA diversities appears to be due to the smaller N e for mtDNA, perhaps resulting from population bottlenecks during postglacial colonizations of the central North Pacific or the effects of natural selection on mtDNA.

show abstract

Wisconsin—Holocene paleoenvironment of the Bering Sea: Evidence from diatoms, pollen, oxygen isotopes and clay minerals

Cited by 94 publications

References 20 publications

Late pleistocene sedimentation history of the Shirshov Ridge, Bering Sea

Late pleistocene sedimentation history of the Shirshov Ridge, Bering Sea

Transport and burial rates of10Be and231Pa in the Pacific Ocean during the Holocene period

Highly Discordant Nuclear and Mitochondrial DNA Diversities in Atka Mackerel

Contact Info

Product

Resources

About