Nutrient regeneration susceptibility under contrasting sedimentary conditions from the Rio de Janeiro coast, Brazil

Matos, Christiene R.L.; Mendoza, Ursula; Díaz, Rut; Moreira, Manuel; Belem, André L.; Metzger, Édouard; Albuquerque, Ana Luíza Spadano; Machado, Wilson

doi:10.1016/j.marpolbul.2016.04.046

Cited by 19 publications

(8 citation statements)

References 41 publications

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“…According to Yang et al () nitrite‐N, nitrate‐N, ammoniacal nitrogen and phosphate concentrations in the sediment pore water were higher than the water column indicating that the pond sediment acted as a net source of nutrients to the water column. The nutrients in pore water are typically derived from the degradation of organic matter (Lee, Porubsky, Feller, McKee, & Joye, ; Zhang et al, ) and the concentration of nutrients increase with the accumulation of degradable organic matter in sediment (Lacoste & Gaertner‐Mazouni, ; Matos et al, ). The increase in accumulated organic matter leads to a reduction in redox potential (moving towards reduced condition), which is an index of the degree of oxidation and reduction condition of pond sediment (Wilding, ).…”

Section: Introductionmentioning

confidence: 99%

Changes in soil and water quality at sediment–water interface ofPenaeus vannameiculture pond at varying salinities

et al. 2019

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The health of the pond environment in shrimp farming is important for sustainable and profitable aquaculture, in which sediment–water interface is the most important influencing area. With this objective, the key parameters of water and sediment at the interface was studied in shrimp ponds with varying salinities and compared with the surface water and soil to understand the variations and the underlying causes. Total ammonia nitrogen and total alkalinity were higher in water at the interface as compared to surface water, whereas pH, nitrite, oxide forms of nitrogen (NO3), phosphorus (PO4) and oxidizing bacteria were observed to be lower. There was no significant difference with respect to macrominerals such as sodium, potassium, calcium and magnesium between water at the interface and surface. These changes are profoundly influenced by the uppermost 1.0‐cm thick sediment layer, where the maximum transition of nutrients takes place with the water column. The outcome of the study highlights the effectiveness of water sampling for metabolites at the interface, which reflects at an early stage any potential deterioration of pond environment, which will help the farmer to initiate timely mitigation measures.

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Section: Introductionmentioning

confidence: 99%

Changes in soil and water quality at sediment–water interface ofPenaeus vannameiculture pond at varying salinities

et al. 2019

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“…Porewater was extracted from the rest of the sediment by centrifugation (4,000 rpm, 10 min Hereaus Omnifuge 2000 RS), and then divided into two subsamples in nitrogen‐filled glove bags in order to inhibit oxidation (Matos et al, ). One set of porewater subsamples was filtered through cellulose acetate filters with a pore size of 0.45 μm (Biotrans™ nylon membranes; De Vittor et al, ), and the filtrates were analyzed for the concentrations of TOC, DOC, and DIC by a total organic carbon analyzer.…”

Section: Methodsmentioning

confidence: 99%

Methane Dynamics of Aquaculture Shrimp Ponds in Two Subtropical Estuaries, Southeast China: Dissolved Concentration, Net Sediment Release, and Water Oxidation

et al. 2019

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Aquaculture ponds are potentially large sources of atmospheric methane (CH4) that can exacerbate climate change. A thorough understanding of various CH4 biogeochemical processes occurring in the ponds is essential for the prediction and management of CH4 emissions arising from aquaculture. However, the variations in pond CH4 biogeochemical processes among estuaries and aquaculture stages remain poorly understood. In this study, we assessed the net sediment release, oxidation, and dissolved concentrations of CH4 in aquaculture ponds in two subtropical estuaries among three shrimp growth stages in Southeast China. Overall, porewater CH4 concentrations and sediment CH4 release rates varied greatly among different stages in the order: middle stage > final stage > initial stage. Water column CH4 concentrations and overlying water CH4 oxidation rates showed an increasing trend over the study period. Sediment CH4 release rates and dissolved CH4 concentrations also varied considerably between the two estuaries. In the more saline Jiulong River Estuary, sediment CH4 release rate was lower while the shrimp survival rate and yield were higher as compared to the Min River Estuary with a lower water salinity. Our results suggest that both high water salinity and feed utilization efficiency can effectively mitigate CH4 emissions from the coastal shrimp ponds. Overall, the large magnitude of net CH4 emissions observed in our shrimp ponds highlights the urgency of formulating appropriate policies and building sustainable institutions that can strike a balance between land‐based aquaculture development and greenhouse gas mitigation in the subtropical coastal regions.

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“…As one of the important processes, the biogeochemical cycle of sedimentary biogenic elements under the influence of shellfish farming has attracted widespread attention in recent years (Lee et al, 2016;Huang et al, 2018). The increased sedimentary organic matter (SOM) affected by shellfish farming activities has been shown to significantly increase sediment oxygen consumption (SOC) and the turnover of nutrients (Matos et al, 2016). These regenerated nutrients play an important role in phytoplankton production and could meet up to 100% of phytoplankton demand in some coastal waters (Van Broekhoven et al, 2014;Foster and Fulweiler, 2019;Kim et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…) in anaerobic environments can be removed through the denitrification process (Rysgaard et al, 2004;Matos et al, 2016;Foster and Fulweiler, 2019). It is widely believed that DO is one of the most important parameters controlling the biogeochemical cycle of phosphorus (P) in aquatic ecosystems, which is mainly driven by the iron-bound P (FeeP) migration in sediments (Liu et al, 2020).…”

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confidence: 99%

Potential linkage between sedimentary oxygen consumption and benthic flux of biogenic elements in a coastal scallop farming area, North Yellow Sea

et al. 2021

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Nutrient regeneration susceptibility under contrasting sedimentary conditions from the Rio de Janeiro coast, Brazil

Cited by 19 publications

References 41 publications

Changes in soil and water quality at sediment–water interface ofPenaeus vannameiculture pond at varying salinities

Changes in soil and water quality at sediment–water interface ofPenaeus vannameiculture pond at varying salinities

Methane Dynamics of Aquaculture Shrimp Ponds in Two Subtropical Estuaries, Southeast China: Dissolved Concentration, Net Sediment Release, and Water Oxidation

Potential linkage between sedimentary oxygen consumption and benthic flux of biogenic elements in a coastal scallop farming area, North Yellow Sea

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