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Maruya Y, Nakayama K, Sasaki M, Komai K. Effect of dissolved oxygen on methane production from bottom sediment in a eutrophic stratified lake. J Environ Sci (China) 2023; 125:61-72. [PMID: 36375943 DOI: 10.1016/j.jes.2022.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 06/16/2023]
Abstract
Clarifying the role of sulfate and dissolved oxygen (DO) in methane production may allow for precise and accurate modeling of methane emissions in eutrophic lakes. We conducted field observations of sulfate, methane, and DO concentrations in Lake Abashiri, a typical brackish and eutrophic lake in a cold region, to develop a DO-based method for quantitively estimating methane production in a eutrophic lake and analyzed the results. We found that sulfate concentrations decreased rapidly from 900.0 mg/L in water overlying the sediments to nearly 0.0 mg/L in the bottom sediment. Methane production was almost uniform across sediment depths of 0.05 to 0.25 m, ranging from 1400 to 1800 µmol/m2/day. Also, methane production was found to be a function of DO concentrations in water overlying the bottom and could be modeled by a logistic function: constant production at 1,400 µmol/m2/day for DO concentrations of 0.0 to 3.0 mg/L, rapidly decreasing to 0 µmol/m2/day for DO concentrations of 3.0 to 6.0 mg/L. This methane model was verified using a simple one-dimensional numerical model that showed good agreement with field observations. Our results thus suggest that the proposed methane model reduces uncertainty in estimating methane production in a eutrophic lake.
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Affiliation(s)
- Yasuyuki Maruya
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan.
| | - Keisuke Nakayama
- Graduate School of Engineering, Kobe University, Rokkodai-Cho 1-1, Nada-Ku, Kobe 657-8501, Japan
| | - Masafumi Sasaki
- Department of Engineering, Kitami Institute of Technology, Kohen-Cho 165, Kitami 090-8507, Japan
| | - Katsuaki Komai
- Department of Engineering, Kitami Institute of Technology, Kohen-Cho 165, Kitami 090-8507, Japan
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Thalasso F, Sepulveda-Jauregui A, Cabrol L, Lavergne C, Olgun N, Martinez-Cruz K, Aguilar-Muñoz P, Calle N, Mansilla A, Astorga-España MS. Methane and carbon dioxide cycles in lakes of the King George Island, maritime Antarctica. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157485. [PMID: 35870597 DOI: 10.1016/j.scitotenv.2022.157485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/14/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Freshwater ecosystems are important contributors to the global greenhouse gas budget and a comprehensive assessment of their role in the context of global warming is essential. Despite many reports on freshwater ecosystems, relatively little attention has been given so far to those located in the southern hemisphere and our current knowledge is particularly poor regarding the methane cycle in non-perennially glaciated lakes of the maritime Antarctica. We conducted a high-resolution study of the methane and carbon dioxide cycle in a lake of the Fildes Peninsula, King George Island (Lat. 62°S), and a succinct characterization of 10 additional lakes and ponds of the region. The study, done during the ice-free and the ice-seasons, included methane and carbon dioxide exchanges with the atmosphere (both from water and surrounding soils) and the dissolved concentration of these two gases throughout the water column. This characterization was complemented with an ex-situ analysis of the microbial activities involved in the methane cycle, including methanotrophic and methanogenic activities as well as the methane-related marker gene abundance, in water, sediments and surrounding soils. The results showed that, over an annual cycle, the freshwater ecosystems of the region are dominantly autotrophic and that, despite low but omnipresent atmospheric methane emissions, they act as greenhouse gas sinks.
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Affiliation(s)
- Frederic Thalasso
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Av. IPN 2508, Mexico City 07360, Mexico; Cape Horn International Center, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile
| | - Armando Sepulveda-Jauregui
- Cape Horn International Center, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile; Centro de Investigación Gaia Antártica (CIGA), Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile; Network for Extreme Environment Research (NEXER), Universidad de Magallanes, Punta Arenas, Av. Bulnes 01855, Punta Arenas 6210427, Chile
| | - Léa Cabrol
- Aix Marseille University, CNRS, IRD, Mediterranean Institute of Oceanography (MIO), 163 avenue de Luminy, Marseille 13288, France; Millenium Institute "Biodiversity of Antartic and Subantarctic Ecosystems" (BASE), Universidad de Chile, Las Palmeras 3425, Nunoa, Santiago de Chile 7800003, Chile
| | - Céline Lavergne
- HUB ambiental UPLA and Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, Universidad de Playa Ancha, Subida Leopoldo Carvallo 207, Valparaíso 234000, Chile; Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica Valparaíso, Av. Brasil 2085, Valparaíso 2340000, Chile
| | - Nazlı Olgun
- Climate and Marine Sciences Division, Eurasia Institute of Earth Sciences, Istanbul Technical University, İTÜ Ayazaga Campus, Maslak, Istanbul 34469, Turkey
| | - Karla Martinez-Cruz
- Network for Extreme Environment Research (NEXER), Universidad de Magallanes, Punta Arenas, Av. Bulnes 01855, Punta Arenas 6210427, Chile; Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile; Environmental Physics, Limnological Institute, University of Konstanz, Mainaustrasse 252, Konstanz 78464, Germany
| | - Polette Aguilar-Muñoz
- HUB ambiental UPLA and Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, Universidad de Playa Ancha, Subida Leopoldo Carvallo 207, Valparaíso 234000, Chile; Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica Valparaíso, Av. Brasil 2085, Valparaíso 2340000, Chile
| | - Natalia Calle
- Departamento de Química, Universidad Técnica Federico Santa María, Av. España 1680, Valparaiso 234000, Chile
| | - Andrés Mansilla
- Cape Horn International Center, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile; Laboratorio de Ecosistemas Marinos antárticos & subantártico, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile
| | - María Soledad Astorga-España
- Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas 6210427, Chile.
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