Sedimentary loadings and ecological significance of polycyclic aromatic hydrocarbons in a typical mariculture zone of South China

Yu, Huanyun; Bao, Lian-Jun; Wong, Charles S.; Hu, Yuanan; Zeng, Eddy Y.

doi:10.1039/c2em30292f

Cited by 6 publications

(4 citation statements)

References 49 publications

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“…China is the largest aquaculture producer in the world, with a total production of 34.1 million tons, which accounts for 62% of total global production and 51% of the global value (Yang et al 2005, FAO 2010, Yu et al 2012. The area devoted to aquaculture increased from 11.2 × 10 4 ha in 1977 to 218 × 10 4 ha in 2012 (The People's Republic of China Ministry of Agriculture Fisheries Bureau 2013).…”

Section: Introductionmentioning

confidence: 99%

Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China

Li¹,

Liu²,

Zhang³

et al. 2016

Aquacult. Environ. Interact.

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Field observations were made from 2012 to 2014 at an integrated multi-trophic aquaculture (IMTA) site in Sanggou Bay (SGB), China, to characterize the nutrients associated with aquaculture activities, and to assess the effects of aquaculture on nutrient cycles in the bay. Dissolved inorganic and organic nutrient levels were measured in rivers, groundwater, and SGB. Seasonal variations in nutrient concentrations were detected in the rivers, particularly enrichment of dissolved inorganic nitrogen (DIN) and silicate (DSi). Nutrient concentrations showed considerable seasonal variation, with higher and significantly different concentrations occurring in autumn than in the other seasons. The composition and distribution of nutrients were also affected by the species being cultured. Dissolved organic nitrogen and phosphorus (DON and DOP) accounted for 27 to 87% of total dissolved nitrogen and 34 to 81% of total dissolved phosphorus, respectively. Phosphorus may be a potentially limiting nutrient for phytoplankton growth in summer. Nutrient budgets were developed based on a simple steady-state box model. These showed that bivalve aquaculture was the major source of PO 4 3− (contributing 64% of total influx) and led to increased riverine fluxes of PO 4 3− . The results indicated that substantial quantities of nitrogen and DSi accumulated in sediments or were transformed into other forms (e.g. phytoplankton cell composition or particles). Large quantities of DIN and PO 4 3− were removed from the bay through harvesting of seaweeds and bivalves, which represented up to 64 and 81% of total outflux, respectively. The results show that aquaculture activities play the most important role in nutrient cycling in SGB.

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Section: Introductionmentioning

confidence: 99%

Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China

Li¹,

Liu²,

Zhang³

et al. 2016

Aquacult. Environ. Interact.

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“…Macroalgal culture is reputed as an environmentally sound form of mariculture because of its extractive properties that can help to alleviate eutrophication and restore ecosystem services (Edwards 2015); however, impacts from suspended macroalgal culture are plausible and include the inhibition of water flow and light penetration, and the deposition of large amounts of tissue from breakage and drop-off (Zhang et al 2012; Zhou 2012). The potential for cultivating echinoderms in suspended systems remains experimental and so the impacts caused by suspended echinoderms have not been investigated (e.g., Yu et al 2012). This review grouped the impacts from all trophic levels as either chemical, ecological, physical, or socioeconomic ( Figure 5).…”

Section: Trophic-level Impactsmentioning

confidence: 99%

“…The release of synthetic compounds has included polycyclic aromatic hydrocarbons that have been linked to the operation of boats supporting aquaculture infrastructure (Klumpp et al 2002;Yu et al 2012). Various persistent halogenated compounds (PHCs), pesticides such as DDT (dichlorodiphenyltrichloroethane), and pharmaceuticals have originated in feed (Yu et al 2011b;Chen et al 2015;Fang, Bao and Zeng 2016).…”

Section: Chemical Impactsmentioning

confidence: 99%

“…Although few studies have assessed the applications of IMTA in southern China the region is not short of valuable, commercial species from low trophic levels. For example, the seaweed Gracilaria lemaneiformis (Yang et al 2015), scallop Chlamys nobilis (Guo and Luo 2006), and oyster Crassostrea hongkongensis (Lam and Morton 2003) are all commercially cultivated in southern China and can be tested in largescale IMTA systems, but so far integrating low trophic level species with fed species remains experimental (e.g., Yu et al 2012;Yu et al 2014b). To elucidate potential climatic influences that may act as drivers to the success of commercial IMTA in northern China, new research could focus on commercial-scale IMTA in provinces south of Shandong.…”

Section: Geographic Distribution Of Imtamentioning

confidence: 99%

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The impacts of suspended mariculture on coastal zones in China and the scope for Integrated Multi-Trophic Aquaculture

Wartenberg

Feng

et al. 2017

Ecosyst Health Sustain

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Introduction: China is responsible for more than 60\% of global aquaculture production. As the frontiers of food production have expanded, the cultivation of marine organisms in coastal zones and the open ocean has grown rapidly. The dominant mariculture industry in China is suspended mariculture, which uses net cages, ropes, or other structures suspended in the water column to cultivate aquatic organisms. This systematic, quantitative review provides a clear and comprehensive account of research that has investigated the adverse impacts of suspended mariculture in China and reviews research that has applied Integrated Multi-Trophic Aquaculture (IMTA) systems for mitigating impacts. This work builds on 218 peer reviewed papers that have been published in English-language journals. Outcomes: Eighteen impacts were identified, including chemical, ecological, physical, and socioeconomic impacts. Eighteen measures for improving suspended mariculture were recommended consisting of government department, farm management, and ecological engineering measures. IMTA was the most frequently recommended measure. The capabilities of IMTA for bioremediation and increased farm production were the most frequently studied advantages. Seven other benefits have been explored but remain understudied. The current challenges facing the expansion of commercial IMTA include limited use of new technology, limited skills development, decreasing production of low trophic-level species, biogeographic and temporal barriers, and negative system feedbacks. Conclusion: Despite challenges, implementing commercial IMTA is a promising measure for reducing the impacts of suspended mariculture because it presents a range of secondary benefits that can improve the overall sustainability of aquaculture in the coastal zone

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PCR based fingerprinting techniques to transpire the microbial populations diversity of biofilm based nitrifying packed bed bioreactor in the bioremediation of aquaculture wastewater

Rangaswamy

Singh

2022

GRN TECH RES SUSTAIN

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To deal with the increasing risk of pollutants from the aquaculture practice, wastewater treatment systems are considered to be an ideal strategy, for reducing the impact on the natural ecosystem. Biological treatment systems per se bioreactors involving microorganisms are efficient in the bioremediation process is determined by the reactor design, operational module i.e., structure of the bacterial community, and their diversity which in turn reveals the essential relationship between its ecosystem and the environmental factors. Microbial diversity and the dynamics of the microbial populations illustrate the principal background of different bacterial communal development performing bioremediation. Progression in genome exploration led to multifaceted technical ease in recent with the emergence of different generation sequencing technologies e.g., Sanger sequencing, 454 sequencing, Illumina/Solexa sequencing, Single-molecule real-time sequencing, and Oxford nanopore sequencing. Though the recent advancements provide a greater profile of information for research, using high throughput sequencing could not be a suitable option in all aspects, especially in consideration of the initial research requirement, the low number of targets, minimal samples, and also the diversity scaling methodologies. In this review, we have discussed the PCR-based molecular fingerprinting techniques which go accessible with sanger sequencing methodologies as well as by combining different statistical and bioinformatic algorithms. The systematic analysis with the elementary molecular techniques combining sequence technologies and bioinformatics tools would enable us to understand the overview and diversity structure of the biofilm and further in-depth research by selecting appropriate sequencing platforms results in the dynamics of the microbial community.

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Sedimentary loadings and ecological significance of polycyclic aromatic hydrocarbons in a typical mariculture zone of South China

Cited by 6 publications

References 49 publications

Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China

Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China

The impacts of suspended mariculture on coastal zones in China and the scope for Integrated Multi-Trophic Aquaculture

PCR based fingerprinting techniques to transpire the microbial populations diversity of biofilm based nitrifying packed bed bioreactor in the bioremediation of aquaculture wastewater

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