Benthic Biogeochemical Cycling of Ocean Nutrients and Carbon

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Biology".

Deadline for manuscript submissions: closed (10 October 2023) | Viewed by 1101

Special Issue Editor


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Guest Editor
Marine Environment Research Center, Korea Institute of Ocean Science and Technology, Yeongdo-gu, Busan, Republic of Korea
Interests: benthic organic carbon cycling; benthic ecology; development of in situ equipment; benthic-pelagic coupling

Special Issue Information

Dear Colleagues,

Benthic biogeochemical cycling occurs in the benthic boundary layer and plays a critical role in regulating the fluxes of carbon and nutrients between the sediment and bottom water. This process involves the degradation and transformation of organic matter into inorganic nutrients and carbon, which benthic organisms facilitate through organic matter degradation. Understanding the biogeochemistry of sediments and the role of benthic organisms is central to this process.

It is important to consider the impact of human activities, such as coastal eutrophication and deep-sea mining, on benthic biogeochemical cycling. Research on this topic is essential to gain a comprehensive understanding of the biogeochemical processes involved, including the oxidation of organic matter, the cycling of nitrogen and phosphorus, and the production and consumption of various biogenic gases. In situ measurement methods are also used to study this process.

To provide a comprehensive overview of the current state of knowledge in this field, a Special Issue on “Benthic Biogeochemical Cycling of Ocean Nutrients and Carbon” will highlight the latest advances in our understanding of this topic. This Special Issue will serve as an essential resource for researchers and students interested in marine biogeochemistry, oceanography, and environmental science.

Prof. Dr. Jae Seong Lee
Guest Editor

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Keywords

  • organic carbon oxidation

  • nutrient cycling
  • carbon cycling
  • climate change
  • benthic flux
  • in situ measurement
  • anthropogenic impacts

Published Papers (1 paper)

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Research

17 pages, 6478 KiB  
Article
Benthic Respiration and Heavy Metal Benthic Fluxes in Artificial Shihwa Lake: Approaching In Situ Measurement
by Yu-Hyeon Cho, Ju-Wook Baek, Sung-Uk An, Hyun-Ju Yoo, Hyun-Min Baek, Jin Young Choi, Tae Ha Kim, Kyung-Tae Kim, Jae Seong Lee and Sung-Han Kim
J. Mar. Sci. Eng. 2023, 11(11), 2186; https://doi.org/10.3390/jmse11112186 - 17 Nov 2023
Viewed by 728
Abstract
This study assessed the impact of intensive human activities on organic matter (OM) and heavy metal cycles in Shihwa Lake, South Korea. Sediment oxygen demand (SOD), benthic nutrient flux (BNF), and benthic heavy metal flux were estimated using in situ benthic chambers. The [...] Read more.
This study assessed the impact of intensive human activities on organic matter (OM) and heavy metal cycles in Shihwa Lake, South Korea. Sediment oxygen demand (SOD), benthic nutrient flux (BNF), and benthic heavy metal flux were estimated using in situ benthic chambers. The combined analysis of sediment trap and SOD showed that the vertical supply of OM was a major controlling factor for benthic respiration. The BNF accounted for 35–144% and 32–184% of the N and P required, respectively, for primary production (PP) in the water column. The higher SOD may have also accelerated the release of Mn, Fe, Co, and Ni from the sediment. Benthic fluxes of Cr, As, Cd, Pb, Cu, and Zn were highest near the industrial complex, with ranges of 1.3 ± 0.9, 6.4 ± 4.9, 0.2 ± 0.1, 0.5 ± 0.4, 7.7 ± 1.4, and 452 ± 133 μmol m−2 d−1, respectively. Mn, Fe, Co, As, Pb, Ni, and Cu contributed more than 10% of the sediment to the current standing stock at Shihwa Lake. Full article
(This article belongs to the Special Issue Benthic Biogeochemical Cycling of Ocean Nutrients and Carbon)
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