Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records

Glynn, Danielle S.; McMahon, Kelton W.; Guilderson, Thomas P.; McCarthy, Matthew D.

doi:10.1016/j.epsl.2019.03.014

Title: Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ¹⁵N and δ¹³C records

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Abstract

The North Pacific Subtropical Gyre (NPSG) is the largest continuous ecosystem on Earth and is a critical component of global oceanic biogeochemical cycling and carbon sequestration. We report here multi-millennial-scale, sub-decadal-resolution records of bulk stable nitrogen (δ¹⁵N) and carbon (δ¹³C) isotope records from proteinaceous deep-sea corals. Data from three Kulamanamana haumeaae specimens from the main Hawaiian Islands extend the coral-based time-series back ~5000 yrs for the NPSG and bypass constraints of low resolution sediment cores in this oligotrophic ocean region. We interpret these records in terms of shifting biogeochemical cycles and plankton community structure, with a main goal of placing the extraordinarily rapid ecosystem biogeochemical changes documented by recent coral records during the Anthropocene in a context of broader Late-Holocene variability.

Authors:

^[1]; McMahon, Kelton W. ^[2]; Guilderson, Thomas P. ^[3]; McCarthy, Matthew D. ^[1]

Univ. of California, Santa Cruz, CA (United States)
Univ. of California, Santa Cruz, CA (United States); Univ. of Rhode Island, Narragansett, RI (United States)
Univ. of California, Santa Cruz, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Publication Date:: Thu Mar 28 00:00:00 EDT 2019

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1544520

Alternate Identifier(s):: OSTI ID: 1547585

Report Number(s):: LLNL-JRNL-756719
Journal ID: ISSN 0012-821X; 944247

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Earth and Planetary Science Letters

Additional Journal Information:: Journal Volume: 515; Journal Issue: C; Journal ID: ISSN 0012-821X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; carbon; nitrogen; isotopes; paleoclimate; deep-sea coral; Holocene

Citation Formats


                    Glynn, Danielle S., McMahon, Kelton W., Guilderson, Thomas P., and McCarthy, Matthew D. Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records.  United States: N. p., 2019. 
Web.  doi:10.1016/j.epsl.2019.03.014.

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                    Glynn, Danielle S., McMahon, Kelton W., Guilderson, Thomas P., & McCarthy, Matthew D. Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records.  United States.  https://doi.org/10.1016/j.epsl.2019.03.014

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                    Glynn, Danielle S., McMahon, Kelton W., Guilderson, Thomas P., and McCarthy, Matthew D. Thu .  
"Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records".  United States.  https://doi.org/10.1016/j.epsl.2019.03.014.  https://www.osti.gov/servlets/purl/1544520.

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@article{osti_1544520,

  title        = {Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records},

  author       = {Glynn, Danielle S. and McMahon, Kelton W. and Guilderson, Thomas P. and McCarthy, Matthew D.},

  abstractNote = {The North Pacific Subtropical Gyre (NPSG) is the largest continuous ecosystem on Earth and is a critical component of global oceanic biogeochemical cycling and carbon sequestration. We report here multi-millennial-scale, sub-decadal-resolution records of bulk stable nitrogen (δ15N) and carbon (δ13C) isotope records from proteinaceous deep-sea corals. Data from three Kulamanamana haumeaae specimens from the main Hawaiian Islands extend the coral-based time-series back ~5000 yrs for the NPSG and bypass constraints of low resolution sediment cores in this oligotrophic ocean region. We interpret these records in terms of shifting biogeochemical cycles and plankton community structure, with a main goal of placing the extraordinarily rapid ecosystem biogeochemical changes documented by recent coral records during the Anthropocene in a context of broader Late-Holocene variability.},

  doi          = {10.1016/j.epsl.2019.03.014},

  journal      = {Earth and Planetary Science Letters},

  number       = C,

  volume       = 515,

  place        = {United States},

  year         = {Thu Mar 28 00:00:00 EDT 2019},

  month        = {Thu Mar 28 00:00:00 EDT 2019}

}

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https://doi.org/10.1016/j.epsl.2019.03.014

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Title: Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ15N and δ13C records

Abstract

Citation Formats

Title: Major shifts in nutrient and phytoplankton dynamics in the North Pacific Subtropical Gyre over the last 5000 years revealed by high-resolution proteinaceous deep-sea coral δ¹⁵N and δ¹³C records