Bioturbation coefficients and organic carbon degradation rates of deep-sea sediments in the central-eastern tropical Pacific

Feng Lin; Cai Lin; Xiuwu Sun; Hui Lin; Li Lin; Fangfang Deng; Kaiwen Tan; Peng Lin

doi:10.1007/s13131-024-2413-9

Volume 43 Issue 10

Oct. 2024

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Feng Lin, Cai Lin, Xiuwu Sun, Hui Lin, Li Lin, Fangfang Deng, Kaiwen Tan, Peng Lin. Bioturbation coefficients and organic carbon degradation rates of deep-sea sediments in the central-eastern tropical Pacific[J]. Acta Oceanologica Sinica, 2024, 43(10): 100-106. doi: 10.1007/s13131-024-2413-9

Citation:

Feng Lin, Cai Lin, Xiuwu Sun, Hui Lin, Li Lin, Fangfang Deng, Kaiwen Tan, Peng Lin. Bioturbation coefficients and organic carbon degradation rates of deep-sea sediments in the central-eastern tropical Pacific[J]. Acta Oceanologica Sinica, 2024, 43(10): 100-106. doi: 10.1007/s13131-024-2413-9

Citation:

Feng Lin, Cai Lin, Xiuwu Sun, Hui Lin, Li Lin, Fangfang Deng, Kaiwen Tan, Peng Lin. Bioturbation coefficients and organic carbon degradation rates of deep-sea sediments in the central-eastern tropical Pacific[J]. Acta Oceanologica Sinica, 2024, 43(10): 100-106. doi: 10.1007/s13131-024-2413-9

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Bioturbation coefficients and organic carbon degradation rates of deep-sea sediments in the central-eastern tropical Pacific

doi: 10.1007/s13131-024-2413-9

1.
Laboratory of Marine Ecological Environmental Early Warning and Monitoring, Third Institute of Oceanography, Xiamen 361005, China
2.
Savannah River Ecology Laboratory, University of Georgia, Aiken 29802, USA

Funds: The Scientific Research Foundation of Third Institute of Oceanography, Ministry of Natural Resources under contract No. 2020012; the Guiding Project of the Science and Technology Plan of Fujian Province under contract No. 2020Y0081; the Natural Science Foundation of Xiamen, China under contract NO. 3502Z20227246

More Information

Corresponding author: E-mail: lincai@tio.org.cn
Available Online: 2024-01-13
Publish Date: 2024-10-01

Abstract

Abstract

The biogeochemical processes of marine sediments are influenced by bioturbation and organic carbon decomposition, which is crucial for understanding global element cycles and climate change. Two sediment cores were acquired in 2017 from abyssal basins in the central-eastern tropical Pacific to determine the bioturbation and organic carbon degradation processes. The radioactivity concentrations of ²¹⁰Pb and ²²⁶Ra in the sediment cores were measured, indicating the presence of significant excess ²¹⁰Pb (²¹⁰Pb_ex) signals in the sediment cores. Besides, a manganese nodule was discovered in one core, which had a substantial influence on the distribution of ²¹⁰Pb_ex. With the exception of this anomalous finding, the bioturbation coefficients in the remaining core were estimated to be 10.6 cm²/a using a steady-state diffusion model, greater than most of the deep-sea sediments from the Equatorial Eastern Pacific. By using a bio-diffusion model, we further calculated the degradation rates of organic carbon (8.02 ka^-1), which is also higher than other areas of the Pacific. Our findings displayed the presence of a biologically active benthic ecosystem in the central-eastern tropical Pacific.
- ²¹⁰Pb,
- ²²⁶Ra,
- bioturbation,
- Tropical Pacific,
- organic carbon,
- degradation rate

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References(42)

References

Aller R C. 1994. Bioturbation and remineralization of sedimentary organic matter: Effects of redox oscillation. Chemical Geology, 114(3-4): 331–345, doi: 10.1016/0009-2541(94)90062-0

Alperin M J, Suayah I B, Benninger L K, et al. 2002. Modern organic carbon burial fluxes, recent sedimentation rates, and particle mixing rates from the upper continental slope near Cape Hatteras, North Carolina (USA). Deep-Sea Research Part II: Topical Studies in Oceanography, 49(20): 4645–4665, doi: 10.1016/S0967-0645(02)00133-9

Arndt S, Jørgensen B B, LaRowe D E, et al. 2013. Quantifying the degradation of organic matter in marine sediments: A review and synthesis. Earth-Science Reviews, 123: 53–86, doi: 10.1016/j.earscirev.2013.02.008

Banta G T, Giblin A E, Hobbie J E, et al. 1995. Benthic respiration and nitrogen release in Buzzards Bay, Massachusetts. Journal of Marine Research, 53(1): 107–135, doi: 10.1357/0022240953213287

Blöthe M, Wegorzewski A, Müller C, et al. 2015. Manganese-cycling microbial communities inside deep-sea manganese nodules. Environmental Science & Technology, 49(13): 7692–7700

Cammen L M. 1979. Ingestion rate: An empirical model for aquatic deposit feeders and detritivores. Oecologia, 44(3): 303–310, doi: 10.1007/BF00545232

Canfield D E. 1994. Factors influencing organic carbon preservation in marine sediments. Chemical Geology, 114(3-4): 315–329, doi: 10.1016/0009-2541(94)90061-2

Cochran J K, Krishnaswami S. 1980. Radium, thorium, uranium, and ²¹⁰Pb in deep-sea sediments and sediment pore waters from the North Equatorial Pacific. American Journal of Science, 280(9): 849–889, doi: 10.2475/ajs.280.9.849

Cullen D J. 1973. Bioturbation of superficial marine sediments by interstitial meiobenthos. Nature, 242(5396): 323–324, doi: 10.1038/242323a0

Cutshall N H, Larsen I L, Olsen C R. 1983. Direct analysis of ²¹⁰Pb in sediment samples: Self-absorption corrections. Nuclear Instruments and Methods in Physics Research, 206(1-2): 309–312, doi: 10.1016/0167-5087(83)91273-5

Díaz-Asencio M, Herguera J C, Schwing P T, et al. 2020. Sediment accumulation rates and vertical mixing of deep-sea sediments derived from ¹⁴C and ²¹⁰Pb in the southern Gulf of Mexico. Marine Geology, 429: 106288, doi: 10.1016/j.margeo.2020.106288

Guinasso N L Jr, Schink D R. 1975. Quantitative estimates of biological mixing rates in abyssal sediments. Journal of Geophysical Research, 80(21): 3032–3043, doi: 10.1029/JC080i021p03032

Guo Laodong, Macdonald R W. 2006. Source and transport of terrigenous organic matter in the upper Yukon River: Evidence from isotope (δ¹³C, Δ¹⁴C, and δ¹⁵N) composition of dissolved, colloidal, and particulate phases. Global Biogeochemical Cycles, 20(2): GB2011

Hyeong K, Seo I, Lee H B, et al. 2018. Variability in particle mixing rates in sediments with polymetallic nodules in the equatorial eastern pacific as determined from measurements of excess ²¹⁰Pb. Ocean Science Journal, 53(2): 355–368, doi: 10.1007/s12601-018-0026-y

Jumars P A, Wheatcroft R A. 1989. Responses of benthos to changing food quality and quanitity, with a focus on deposit feeding and bioturbation. In: Berger W H, Smetacek V S, Wefer G, eds. Productivity of the Ocean: Present and Past. New York: John Wiley Sons Press, 235–253

Kristensen E, Hansen T, Delefosse M, et al. 2011. Contrasting effects of the polychaetes Marenzelleria viridis and Nereis diversicolor on benthic metabolism and solute transport in sandy coastal sediment. Marine Ecology Progress Series, 425: 125–139, doi: 10.3354/meps09007

Kuang Fangfang, Cha Jing, Zhang Junpeng, et al. 2022. Intra-seasonal variability of the abyssal currents in COMRA’s contract area in the Clarion-Clipperton Zone. Acta Oceanologica Sinica, 41(11): 1–11, doi: 10.1007/s13131-021-1945-5

Lin Feng, Lin Cai, Lin Hui, et al. 2021. ²¹⁰Pb-Derived bioturbation rates in sediments around seamounts in the tropical Northwest Pacific. Frontiers in Marine Science, 8: 701897, doi: 10.3389/fmars.2021.701897

Lin Cai, Liu Yang, Jiang Ronggen, et al. 2022. Baseline establishment for metals in the western Clarion-Clipperton Zone. Acta Oceanologica Sinica, 41(11): 12–22, doi: 10.1007/s13131-021-1908-x

Martens C S, Kipphut G W, Klump J V. 1980. Sediment-water chemical exchange in the coastal zone traced by in situ Radon-222 flux measurements. Science, 208(4441): 285–288, doi: 10.1126/science.208.4441.285

Mukhopadhyay R, Naik S, De Souza S, et al. 2019. The economics of mining seabed manganese nodules: A case study of the Indian Ocean nodule field. Marine Georesources & Geotechnology, 37(7): 845–851

Murray J W, Kuivila K M. 1990. Organic matter diagenesis in the northeast Pacific: transition from aerobic red clay to suboxic hemipelagic sediments. Deep-Sea Research Part A. Oceanographic Research Papers, 37(1): 59–80

Müller P J, Mangini A. 1980. Organic carbon decomposition rates in sediments of the Pacific manganese nodule belt dated by ²³⁰Th and ²³¹Pa. Earth and Planetary Science Letters, 51(1): 94–114, doi: 10.1016/0012-821X(80)90259-9

Nozaki Y, Cochran J K, Turekian K K, et al. 1977. Radiocarbon and ²¹⁰Pb distribution in submersible-taken deep-sea cores from Project FAMOUS. Earth and Planetary Science Letters, 34(2): 167–173, doi: 10.1016/0012-821X(77)90001-2

Schmidt N, Dellapenna T, Lin Peng. 2021. ⁷Be/²¹⁰Pbxs ratio-derived age and residence time of suspended sediments in Galveston Bay. Frontiers in Marine Science, 8: 703945, doi: 10.3389/fmars.2021.703945

Smith C R, Berelson W, Demaster D J, et al. 1997. Latitudinal variations in benthic processes in the abyssal equatorial Pacific: control by biogenic particle flux. Deep-Sea Research Part II:Topical Studies in Oceanography, 44(9-10): 2295–2317, doi: 10.1016/S0967-0645(97)00022-2

Smith J N, Boudreau B P, Noshkin V. 1986. Plutonium and ²¹⁰Pb distributions in northeast Atlantic sediments: subsurface anomalies caused by non-local mixing. Earth and Planetary Science Letters, 81(1): 15–28, doi: 10.1016/0012-821X(86)90097-X

latitude in the central equatorial Pacific. Deep-Sea Research Part II: Topical Studies in Oceanography, 43(4–6): 1309–1338

Smith C R, Maybaum H L, Baco A R, et al. 1998. Sediment community structure around a whale skeleton in the deep Northeast Pacific: Macrofaunal, microbial and bioturbation effects. Deep-Sea Research Part II:Topical Studies in Oceanography, 45(1-3): 335–364, doi: 10.1016/S0967-0645(97)00043-X

Smith J N, Schafer C T. 1984. Bioturbation processes in continental slope and rise sediments delineated by Pb–210, microfossil and textural indicators. Journal of Marine Research, 42(4): 1117–1145, doi: 10.1357/002224084788520738

Soetaert K, Herman P M J, Middelburg J J, et al. 1996. Modeling ²¹⁰Pb-derived mixing activity in ocean margin sediments: Diffusive versus nonlocal mixing. Journal of Marine Research, 54(6): 1207–1227, doi: 10.1357/0022240963213808

Song Shasha, Santos I R, Yu Huaming, et al. 2022. A global assessment of the mixed layer in coastal sediments and implications for carbon storage. Nature Communications, 13: 4903, doi: 10.1038/s41467-022-32650-0

Steiner Z, Lazar B, Levi S, et al. 2016. The effect of bioturbation in pelagic sediments: Lessons from radioactive tracers and planktonic foraminifera in the Gulf of Aqaba, Red Sea. Geochimica et Cosmochimica Acta, 194: 139–152, doi: 10.1016/j.gca.2016.08.037

Suckow A, Treppke U, Wiedicke M H, et al. 2001. Bioturbation coefficients of deep-sea sediments from the Peru Basin determined by gamma spectrometry of ²¹⁰Pbexc. Deep-Sea Research Part II:Topical Studies in Oceanography, 48(17-18): 3569–3592, doi: 10.1016/S0967-0645(01)00057-1

Teal L, Bulling M T, Parker E, et al. 2008. Global patterns of bioturbation intensity and mixed depth of marine soft sediments. Aquatic Biology, 2(3): 207–218, doi: 10.3354/ab00052

Thiel H, Tiefsee-Umweltschutz F. 2001. Evaluation of the environmental consequences of polymetallic nodule mining based on the results of the TUSCH Research Association. Deep-Sea Research Part II:Topical Studies in Oceanography, 48(17-18): 3433–3452, doi: 10.1016/S0967-0645(01)00051-0

Wang Fan, Li Yuanlong, Zhang Yanhui, et al. 2013. The subsurface water in the North Pacific tropical gyre. Deep-Sea Research Part I:Oceanographic Research Papers, 75: 78–92, doi: 10.1016/j.dsr.2013.01.002

Wheatcroft R A, Jumars P A, Smith C R, et al. 1990. A mechanistic view of the particulate biodiffusion coefficient: step lengths, rest periods and transport directions. Journal of Marine Research, 48(1): 177–207, doi: 10.1357/002224090784984560

Yang Zifei, Qian Qiankun, Chen Min, et al. 2020. Enhanced but highly variable bioturbation around seamounts in the northwest Pacific. Deep-Sea Research Part I:Oceanographic Research Papers, 156: 103190, doi: 10.1016/j.dsr.2019.103190

Yang Weifeng, Zhang Xinxing, Chen Min, et al. 2011. Bioturbation in the western Pacific Ocean: use of ²¹⁰Pb to evaluate intensity and POC transport. Journal of Central South University (Science and Technology) (in Chinese), 42(S2): 189–195

Yang Qunhui, Zhou Huaiyang. 2004. Bioturbation in near-surface sediments from the COMRA Polymetallic Nodule Area: evidence from excess ²¹⁰Pb measurements. Chinese Science Bulletin, 49(23): 2538–2542

Yu Wen, Lin Feng, Lin Longshan. 2023. Bioturbation in sediment cores from the Clarion-Clipperton Zone in the northeast Pacific: Evidence from excess ²¹⁰Pb. Marine Pollution Bulletin, 188: 114635, doi: 10.1016/j.marpolbul.2023.114635

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