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1

Peng, Changkang, Ya Gao, Yaqin Tan, et al. "Pollution and Release Characteristics of Nitrogen, Phosphorus and Organic Carbon in Pond Sediments in a Typical Polder Area of the Lake Taihu Basin." Water 14, no. 5 (2022): 820. http://dx.doi.org/10.3390/w14050820.

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There is currently a lack of knowledge on the release characteristics of nutrients from artificial pond sediments in polder areas, resulting in problems in future management of such environments, including converting polders to lakes. In this study, sediment samples were taken from a fish pond and a lotus pond in a typical polder area of the Lake Taihu Basin in China. The total nitrogen (TN, 1760–1810 mg/kg), total phosphorus (TP, 1370–1463 mg/kg) and total organic carbon (TOC, 10.1–21.2 g/kg) contents were significantly higher than those found in sediments from the adjacent aquatic system, wh
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2

SULTANA, AFRIN, MD NAZRUL ISLAM, MD FARHAN TAZIM, MD BADIUL ALAM SHUFOL, MD NAIM UDDIN, and FARAH TASNOVA NATASHA. "Bacteriological study of bottom soil of three extensive fish farm ponds." Bangladesh Journal of Fisheries 33, no. 1 (2021): 75–80. http://dx.doi.org/10.52168/bjf.2021.33.09.

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The study was conducted for bacteriological assessment of pond bottom soil (sediment) from three selected fish ponds of Bangladesh Agricultural University. Samples were collected both in winter and summer seasons to see the seasonal variations of some bacterial genera. Physicochemical parameters of the pond water and sediment were also estimated monthly. Sediment samples were collected from the shore and middle zone of the ponds. All sediment samples were acidic. The total viable count of bacteria in pond sediment ranged from (8.5×106) to (4.9×109) cfu/g and bacterial count were higher in summ
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3

Yan, Leiming, Hong Zhang, Xiaohui You, Zhifang Zhu, Shiwen Zhao, and Yicheng Wang. "Analysis of Sediment Nutrient Pollution Characteristics of Enclosed Fish Ponds in Baiyangdian Lake." Journal of Life Sciences and Agriculture 2, no. 1 (2025): 5–13. https://doi.org/10.62517/jlsa.202507102.

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In order to solidly promote the governance and protection of the ecological environment of Baiyangdian Lake, taking the bottom sediment of the enclosed fish ponds in three areas of Baiyangdian Lake as the research object, the plane and vertical distribution characteristics of nutrients such as total nitrogen (TN), total phosphorus (TP) and organic matter in different layers (0~60cm) in the bottom sediment were analyzed with Nemerow index method, and the pollution degree of sediment in each area was evaluated. The results showed that the TN concentration of the fish pond bottom sediment in the
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4

Zhang, Zhimin, Qinghui Deng, Lingling Wan, Xiuyun Cao, Yiyong Zhou, and Chunlei Song. "Bacterial Communities and Enzymatic Activities in Sediments of Long-Term Fish and Crab Aquaculture Ponds." Microorganisms 9, no. 3 (2021): 501. http://dx.doi.org/10.3390/microorganisms9030501.

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Aquaculture is among the most important and fastest growing agriculture sectors worldwide; however, it generates environmental impacts by introducing nutrient accumulations in ponds, which are possibly different and further result in complex biological processes in the sediments based on diverse farming practices. In this study, we investigated the effects of long-term farming practices of representative aquatic animals dominated by grass carp (GC, Ctenopharyngodon idella) or Chinese mitten crab (CMC, Eriocheir sinensis) on the bacterial community and enzyme activity of sediments from more tha
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5

Adepoju, Samuel Adebowale, Ibrahim Adewale Gbadegesin, Oluwaloni Peter Oluwanisola, and Adama Bola Saadu. "Effects of Fish Pond Sediment on Yield and Productivity of Two Varieties of Amaranths (Amaranthus spp.)." Journal of Agriculture, Aquaculture, and Animal Science 2, no. 1 (2025): 1–6. https://doi.org/10.69739/jaaas.v2i1.189.

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The rising costs of inorganic fertilizers have rendered them inaccessible to many farmers, resulting in reduced crop yields. An affordable alternative for enhancing soil fertility is the use of organic materials such as fish pond sediments. These sediments are nutrient-rich and have the potential to enhance soil quality, promote crop growth, and increase yields. This study examined the effect of fish pond sediments on the yield and productivity of two amaranth varieties. The research was conducted at the University of Ilorin Teaching and Research Farm. A 2x6 factorial experiment was employed u
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6

M.M. Mu’azu, M. Bashir, Y. Sani, M. Kasim, and R.Y. Atiribom. "Characterization and heavy metals concentration of sediments from catfish ponds in Monai Cluster Fish Farm, Southern Basin of Kainji Lake, Niger State, Nigeria." Journal of Agriculture and Environment 20, no. 2 (2025): 165–76. https://doi.org/10.4314/jagrenv.v20i2.15.

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Fishpond sediments play a crucial role in aquaculture systems because they act as both sinks and sources for various nutrients and potential contaminants. In Nigeria's growing aquaculture sector, particularly in cluster fish farms, an understanding the characteristics of pond sediments characteristics particularly sediment quality is essential for sustainable management and environmental protection. This study focused on the Monai cluster fish farm, located in the Southern Basin of Kainji Lake, New Bussa, Niger State, Nigeria, where intensive catfish farming is practiced. The study aimed to ch
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7

Nepejchalová, L., Z. Svobodová, J. Kolářová, K. Frgalová, J. Valová, and D. Némethová. "Oxytetracycline Assay in Pond Sediment." Acta Veterinaria Brno 77, no. 3 (2008): 461–66. http://dx.doi.org/10.2754/avb200877030461.

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The fate of drug residues and their metabolites in the environment is relatively rarely investigated in the conditions of the Czech Republic, resulting in limited availability of scientific information. To demonstrate one example, we prepared a model study with medicated feedstuff containing oxytetracycline hydrochloride (OTC HCl), which was used in fish under normal conditions of use. The oxytetracycline (OTC) contents were determined in the sediments of the pond where the fish were treated. The ELISA method was used for OTC detection and the HPLC method was used for final quantification of O
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8

Ha, Le Thai. "DETERMINATION OF ARSENIC CONTENT IN WASTEWATER-FED FISH POND IN HOANG MAI DISTRICT, HANOI, VIETNAM." Vietnam Journal of Science and Technology 54, no. 2A (2018): 321. http://dx.doi.org/10.15625/2525-2518/54/2a/11948.

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Aquaculture in pond fed with wastewater has been practiced since the 1960s in Hoang Mai and Thanh Tri districts in Hanoi, Vietnam. Wastewater after directly discharged in to Kim Nguu and To Lich river is currently used for cultivation of vegetables and fishes. According to the previous studies, the content of some heavy metals in water and sediments from Kim Nguu and To Lich river exceeded the Vietnamese standard values. In this study, arsenic concentration in water, sediment, fish and plant collected from a wastewater fed-fish pond in Hoang Mai district, Ha Noi, Vietnam were determined by gra
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9

Agustian Fareza, Achmad, and Emenda Sembiring. "Occurence of Microplastics in Water, Sediment and Milkfish (Chanos chanos) in Citarum River Downstream (Case Study: Muara Gembong)." E3S Web of Conferences 148 (2020): 07005. http://dx.doi.org/10.1051/e3sconf/202014807005.

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Microplastics in aquatic environment can possibly enter into the aquatic organism, so this study aims to identify the microplastic concentrations in water, sediment, and milkfish. The samples are taken in downstream Citarum river at Muara Gembong. Water samples were taken using a manta trawl pulled by a boat while sediment and milkfish samples were taken using the grab sampling method. Organic removal and cleaning was conducted by using the Fenton Oxidation method which use Fe and H2O2. The average of microplastic concentrations in river water, seawater ponds, mixed water, and seawater consecu
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10

LEUNG, CHEONG-KIT, YAO-WEN HUANG, and OSCAR C. PANCORBO. "Bacterial Pathogens and Indicators in Catfish and Pond Environments." Journal of Food Protection 55, no. 6 (1992): 424–27. http://dx.doi.org/10.4315/0362-028x-55.6.424.

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Channel catfish (Ictalurus punctatus) fed a diet containing 26 or 38% protein with restricted and satiety feeding methods were examined for microorganisms on the fish surface and viscera. Water, sediment, and fish samples from the ponds were tested for fecal streptococci, fecal coliforms, Aeromonas hydrophila, and Pseudomonas aeruginosa, while fish samples were also analyzed for presumptive Listeria spp. (count on m-VJ agar) and psychrotrophic bacteria. There were no significant differences (P<0.05) in the fecal streptococci and fecal coliform counts for the water, sediment, and fish vi
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11

Yang, Zhen, Yanhong Yao, Meng Sun, Gu Li, and Jianqiang Zhu. "Metagenomics Reveal Microbial Effects of Lotus Root–Fish Co-Culture on Nitrogen Cycling in Aquaculture Pond Sediments." Microorganisms 10, no. 9 (2022): 1740. http://dx.doi.org/10.3390/microorganisms10091740.

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Feed input leads to a large amount of nitrogen-containing sediment accumulating in the substrate in the pond culture process, threatening the safety of aquaculture production. Planting lotus roots (Nelumbo nucifera Gaertn.) in ponds can accelerate the removal of bottom nitrogen, while the role of nitrogen cycle-related microorganisms in the removal is still unclear. In this study, eight yellow catfish (Pelteobagrus fulvidraco) culture ponds with the same basic situation were divided into fishponds with planted lotus roots and ponds with only fish farming. Sediment samples were taken from the f
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12

Nahdhlia, Badi'ah Lailun, Ahmad Syauqi, and Hasan Zayadi. "Isolasi, Keanekaragaman Koloni dan Karakterisasi Bakteri Metanogenik pada Sedimen Kolam Ikan Lele (Clarias sp.)." BIOSAINTROPIS (BIOSCIENCE-TROPIC) 6, no. 1 (2020): 1–9. http://dx.doi.org/10.33474/e-jbst.v6i1.274.

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Bakteri metanogenik adalah bakteri penghasil gas metan. Bakteri ini digolongkan sebagai Archaebacteria yang secara alami hidup di rawa-rawa, tanah becek, kolam dan dalam alat pencernaan hewan besar. Sedimen pada kolam ikan mengandung elemen nutrien yang terbentuk dari aktivitas makhluk hidup seperti sisa pakan dan kotoran ikan sehingga menjadi habitat yang sangat mendukung pertumbuhan mikroorganisme. Penelitian bertujuan untuk mengetahui adanya bakteri metanogenik dan nilai indeks keanekaragaman pada sedimen kolam ikan lele (Clarias sp.) serta karakter bakteri metanogenik. Pengambilan sampel b
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13

Han, Dengfeng, Zhenyi Hu, Dapeng Li, and Rong Tang. "Nitrogen Removal of Water and Sediment in Grass Carp Aquaculture Ponds by Mixed Nitrifying and Denitrifying Bacteria and Its Effects on Bacterial Community." Water 14, no. 12 (2022): 1855. http://dx.doi.org/10.3390/w14121855.

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Nitrification and denitrification are important for nitrogen (N) cycling in fish ponds culture, but the effects of nitrifying and denitrifying bacteria concentrations on pond water and sediments remain largely unknown. Here, we used 0, 0.15, 0.30, 0.60 mg/L different concentrations of mixed nitrifying and denitrifying bacteria to repair the pond substrate through an enclosure experiment lasting 15 days. The results showed that the purification effect of nitrifying and denitrifying bacteria was most obvious on pond nitrogen from day 4 to day 7. The optimal relative concentration was 0.60 mg/L f
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14

Bello, Aisha A., Ulu Jamus Ewuga, Stephen M. Orkaa, and Joseph Z. Dlama. "Heavy Metal Contamination and Physiochemical Parameters of Water, Fishes and Sediments in Jos South Plateau State, North Central, Nigeria using X-ray Fluorescence (XRF) Spectrometer." Nigerian Journal of Physics 34, no. 2 (2025): 74–84. https://doi.org/10.62292/10.62292/njp.v34i2.2025.395.

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Consumers health may be in danger if exposed to heavy metals, particularly in food. Water, biota, and sediments in and around abandoned mining ponds could be polluted with heavy metals which may impact the well-being of fish consumers from these ponds. This study aimed to determine the physiochemical parameters of water samples and the level of heavy metals in two abandoned mining ponds in Jerek community, Jos South Local Government Area of Plateau State, Nigeria. Water samples were collected from two ponds (Ponds 1 and 2) and analyzed to measure the concentrations of five heavy metals (Ni, Mn
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15

Iskandar, Norman, M. Faoji, Sulardjaka, Widayat, and Sri Nugroho. "Analysis of the Influence of Pond Design on the Efficiency of Residual Feed Disposal in Inland Fisheries Farming Ponds." International Research Journal of Innovations in Engineering and Technology 08, no. 11 (2024): 194–99. http://dx.doi.org/10.47001/irjiet/2024.811023.

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Failure in inland fisheries farming with artificial pond mechanisms made of tarpaulin is closely related to water quality issues. Water problems contaminated with dirt, temperature, and acidity levels trigger mass fish deaths. One source of water pollution is the sediment of uneaten feed by fish, which has been at the bottom of the pond for too long. Removing sediment periodically, accurately, and quickly can maintain water quality and reduce production costs for adding replacement water to the pond that is wasted with sediment. This study aims to determine the effect of variations in pond des
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16

Liu, Qianfu, Zini Lai, Yuan Gao, et al. "Connection between the Gut Microbiota of Largemouth Bass (Micropterus salmoides) and Microbiota of the Pond Culture Environment." Microorganisms 9, no. 8 (2021): 1770. http://dx.doi.org/10.3390/microorganisms9081770.

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The vital role of the gut microbiota in fish growth, development, immunity, and health has been largely confirmed. However, the interaction between environmental microbiota and the gut microbiota of aquaculture species remains unclear. Therefore, we analyzed the gut microbiota of largemouth bass (Micropterus salmoides) collected from subtropical ponds in southern China, as well as the pond water and aquatic sediment microbiota, using high-throughput sequencing of the 16S rRNA gene. Our results demonstrated significant differences in the compositions of pond water, sediment, and the gut microbi
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17

Araujo, J. C., M. M. S. Correa, E. C. Silva, et al. "Investigation of aerobic and anaerobic ammonium-oxidising bacteria presence in a small full-scale wastewater treatment system comprised by UASB reactor and three polishing ponds." Water Science and Technology 61, no. 3 (2010): 737–43. http://dx.doi.org/10.2166/wst.2010.955.

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This work applied PCR amplification method and Fluorescence in situ hybridisation (FISH) with primers and probes specific for the anammox organisms and aerobic ammonia-oxidising β-Proteobacteria in order to detect these groups in different samples from a wastewater treatment system comprised by UASB reactor and three polishing (maturation) ponds in series. Seven primer pairs were used in order to detect Anammox bacteria. Positive results were obtained with three of them, suggesting that Anammox could be present in polishing pond sediments. However, Anammox bacteria were not detected by FISH, i
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18

Jaeger, Christophe, and Joël Aubin. "Ecological intensification in multi-trophic aquaculture ponds: an experimental approach." Aquatic Living Resources 31 (2018): 36. http://dx.doi.org/10.1051/alr/2018021.

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As aquaculture production is increasing considerably, it needs to become more environment-friendly. Based on a participatory process, an ecologically intensive pond system was designed to test three hypotheses: a combination of intensive and extensive areas provides more ecosystem services than an intensive or extensive area alone; coupling a planted lagoon with an intensive pond decreases the latter's environmental impacts and maintains or increases its fish productivity; and using formulated feed in polyculture increases growth of all fish species. To test these hypotheses, we designed a spe
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19

Zhang, Zhongqiang, Shuzhen Wei, and Jianxiao Liu. "Pollution Characteristics and Risk Assessment of Heavy Metal Elements in Sediment in the West Lake of Hengshui Lake." Advances in Materials Science and Engineering 2021 (September 13, 2021): 1–6. http://dx.doi.org/10.1155/2021/8178966.

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21 sampling points were set in the West Lake of Hengshui Lake including 20 fish ponds and 1 natural pond to analyze the contents distribution of heavy metal elements including Cr, Zn, Pb, Cu, Cd, Hg, As, and Sb in sediment. The degree of heavy metal pollution was evaluated by the geoaccumulation index (Igeo) method. The results showed that the concentrations of Cr, Zn, Pb, Cu, Cd, and Hg at in all sampling points of the fish ponds were lower than soil risk screening values of agricultural land in soil environmental quality: risk control standard for soil contamination of agricultural land (tri
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20

Yogi, Yonita Nabila, Achmad Noerkhaerin Putra, and Desy Aryani. "Identification of microplastic content in milkfish ponds in Lontar Village, Serang Regency." Acta Aquatica: Aquatic Sciences Journal 11, no. 2 (2024): 166. http://dx.doi.org/10.29103/aa.v11i2.15369.

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Microplastics measuring < 5 mm can easily enter the fish's body through the respiratory system and digestive system. The aim of this research is to calculate the abundance of microplastics and determine the types contained in the bodies of milkfish, water and sediment in the Lontar Village Pond, Serang Regency. There are 6 stations, 4 fish samples were taken from each station, water samples were taken using a plankton net and sediment samples were taken using individual pipes at each station. The number of fish samples was 24 fish, meat, intestine, stomachs and gills were taken. Fish organs
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21

Queiroz, Julio Ferraz de, Gilberto Nicolella, Charles Wesley Wood, and Claude Elson Boyd. "Lime application methods, water and bottom soil acidity in fresh water fish ponds." Scientia Agricola 61, no. 5 (2004): 469–75. http://dx.doi.org/10.1590/s0103-90162004000500001.

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Although some methods for determining lime requirement of pond soils are available and commonly used, there is still no consensus on whether it is more effective to apply liming materials to the bottoms of empty ponds or to wait and apply them over the water surface after ponds are filled. There is also little information on how deep lime reacts in pond sediment over time, and whether the depth of reaction is different when liming materials are applied to the water or to the soil. Therefore, three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with claye
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22

Deng, Yale, Fan Zhou, Yunjie Ruan, et al. "Feed Types Driven Differentiation of Microbial Community and Functionality in Marine Integrated Multitrophic Aquaculture System." Water 12, no. 1 (2019): 95. http://dx.doi.org/10.3390/w12010095.

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Integrated multi trophic aquaculture (IMTA) improves the production of aquatic animals by promoting nutrient utilization through different tropical levels. Microorganisms play an important role in elements cycling, energy flow and farmed-species health. The aim of this study was to evaluate how feed types, fresh frozen fish diet (FFD) or formulated diet (FD), influence the microbial community diversity and functionality in both water and sediment in a marine IMTA system. Preferable water quality, higher animal yields and higher cost efficiency were achieved in the FD pond. Feed types changed t
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23

Tang, Bunga, Raghel Yunginger, Muhammad Yunus, et al. "Analysis of Magnetic Susceptibility in Vertical Sediments in the Fish Pond Area of Limboto Lake." Jurnal Pijar Mipa 19, no. 6 (2024): 1003–9. https://doi.org/10.29303/jpm.v19i6.7829.

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Limboto Lake is one of the lakes in Indonesia that has been degraded due to sedimentation and waste disposal, which will affect the lake ecosystem and its surroundings. This research aims to analyze the Magnetic Susceptibility in Vertical Sediments in the fish pond area of ​​Limboto Lake. Efforts must be made to trace sediment's contribution, which is controlled by lithogenic and anthropogenic components. Vertical sediment samples from Fish Ponds in Limboto Lake were taken at one point with a depth of 15 meters using an XY-1A Spindle drilling machine. This type of research uses survey techniqu
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24

Thi Da, Chau, Phan Anh Tu, John Livsey, Van Tai Tang, Håkan Berg, and Stefano Manzoni. "Improving Productivity in Integrated Fish-Vegetable Farming Systems with Recycled Fish Pond Sediments." Agronomy 10, no. 7 (2020): 1025. http://dx.doi.org/10.3390/agronomy10071025.

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The increasing intensification of aquaculture systems requires the development of strategies to reduce their environmental impacts such as pollution caused by the discharge of nutrient rich sediments into local water bodies. Recycling of fish pond sediments (FPS) as fertilizer has been proposed as a possible solution that may also reduce the reliance on synthetic fertilizers. With a case study in the Mekong Delta, Vietnam, we determined suitable mixtures of striped catfish (Pangasianodon hypophthalmus) pond sediment (PPS) and locally sourced organic amendments of rice straw (RS), or common wat
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25

Dang, Son Thi Thanh, Andreas Petersen, Dung Van Truong, Huong Thi Thanh Chu, and Anders Dalsgaard. "Impact of Medicated Feed on the Development of Antimicrobial Resistance in Bacteria at Integrated Pig-Fish Farms in Vietnam." Applied and Environmental Microbiology 77, no. 13 (2011): 4494–98. http://dx.doi.org/10.1128/aem.02975-10.

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ABSTRACTIntegrated livestock-fish aquaculture utilizes animal excreta, urine, and feed leftovers as pond fertilizers to enhance the growth of plankton and other microorganisms eaten by the fish. However, antimicrobial-resistant bacteria may be transferred and develop in the pond due to selective pressure from antimicrobials present in animal feed, urine, and feces. In an experimental pig-fish farm located in periurban Hanoi, Vietnam, nine piglets were provided feed containing 5 μg of tetracycline (TET)/kg pig weight/day and 0.45 μg of enrofloxacin (ENR)/kg pig weight/day during the second and
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26

Coldebella, Anderson, Antonio Cesar Godoy, André Luis Gentelini, et al. "Nitrogen and phosphorus dynamics in Nile tilapia farming in excavated rearing ponds." Research, Society and Development 9, no. 11 (2020): e1319119699. http://dx.doi.org/10.33448/rsd-v9i11.9699.

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The purpose of this study was to determine the total nitrogen (TN) and total phosphorus (TP) balance during intensive tilapia farming in excavated ponds. To quantify TN and TP released into the environment, the supply water, effluents at the harvest time, fish composition, feed, and sediment were analysed. The mass balance between the amount of nutrients that is inserted through the feed, which is transformed into biomass by the fish and is retained in the sediment was calculated based on dry matter. The nutrient load arriving from the supply water was calculated as a function of the concentra
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27

Alam, MR, MM Haque, KR Sumi, and MM Ali. "Proximate composition of para-grass (Brachiaria mutica) produced in integrated fish-fodder culture system." Bangladesh Journal of Animal Science 44, no. 2 (2015): 113–19. http://dx.doi.org/10.3329/bjas.v44i2.26011.

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An experiment was conducted to evaluate the effects of Pangasius pond sediment on the nutrient uptake by para-grass (Brachiaria mutica) during the period from March to October, 2011 in a Pangasius farm, Dhanikhola, Trishal, Mymensingh. Initially soil chemistry of Pangasius pond sediment and para-grass producing virgin soil was analyzed at the laboratory. The fodder was cultivated at various level of inorganic fertilizer with Pangasius pond sediment having three replications in each treatment. The size of each replication was 25 m2 (5m×5m). The fodder was harvested at the pre-flowering stage (4
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28

Abdulkareem, T. Yesser, and M. Al-Taee Anaam. "The concentration of Some Heavy Metals in the Water, Sediment, and Fish Muscles of Tilapia Fish in Two Different Natural Water Southern Iraq." INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGICAL SCIENCES 4, Sep & Oct 2020 (2020): 127–33. https://doi.org/10.5281/zenodo.4286967.

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<em>The concentration of certain heavy metals (Pb, Zn, Cu, Mn, and Cd) was determined in the water, sediments, and tilapia fish (Coptodon zilli, and Oreochromis niloticaus) from the Tigris River and the fish ponds of Marine Science Centre, University of Basrah, Southern Iraq, during the period April-June 2019. Pb and Zn have the highest concentrations (0.51466 mg/100L) in fish ponds and (0.63 mg/100L) in the Tigris River. Heavy metal concentrations were generally higher in sediment samples than in water samples. Zn recorded a high level of heavy metals in fish pond sediments and the Tigris Riv
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29

Zulham, Armen, Nensyana Shafitri, Budi Wardono, Radytio Pramoda, Cristina Yuliati, and Agus Heri Purnomo. "Collective actions to support sustainable aquaculture: Evidence from brackish water ponds area in Aceh Tamiang." BIO Web of Conferences 74 (2023): 01008. http://dx.doi.org/10.1051/bioconf/20237401008.

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Our research focuses on establishing and improving farmers’ organization in areas with brackish water aquaculture. This research aims to promote sustainable aquaculture enterprises in Aceh Tamiang by engaging fish farmer organizations and promoting collective action. Managing a brackish water region covering a total land area of 3,624.5 hectares requires collective action measures. There is no local governing body that manages water resources or the environment and surroundings of the ponds. Farmers who require knowledge about pond waste and sediment management in the context of fish farming c
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30

Tien, Hai Ly, Thi Kieu Nguyen, Thi Thuy Nhi Nguyen, et al. "Assessing environmental pollutionfrom shrimp farming activities in Soc Trang province." Ministry of Science and Technology, Vietnam 66, no. 6 (2024): 67–72. http://dx.doi.org/10.31276/vjst.66(6).67-72.

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The study aimed to evaluate the level of environmental pollution from shrimp farming in coastal areas of Soc Trang province. A total of 10 shrimp farming households and 50 neighbouring households were interviewed about emissions and environmental sanitation conditions. At the end of the shrimp season, pond water samples were collected from 5 semi-intensive ponds and 5 intensive ponds, bottom sediment samples were collected from 5 semi-intensive ponds to evaluate the level of pollution. Interview results indicated that wastewater and bottom sediment from shrimp farming are the main causes of de
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31

Reza, Shaheed. "Sources of off-flavor in pangasius catfish (Pangasianodon hypophthalmus) ponds." Journal of Aquaculture & Marine Biology 10, no. 3 (2021): 138–44. http://dx.doi.org/10.15406/jamb.2021.10.00315.

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With the intensification of aquaculture system, off-flavor in cultured pangasius catfish (Pangasianodon hypophthalmus) has become a problem in Bangladesh, resulting in poor acceptability and reduced market price. Since water quality parameters and sediment have greater implications on fish quality, studies were undertaken to identify potential off-flavor agents by investigating water temperature, dissolved oxygen (DO) pH, phytoplankton diversity and sediment organic carbon in 3 randomly selected ponds of 3upazilain Mymensingh district viz., Sadar, Trishal and Muktagachha. Water temperature and
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32

Jim-Halliday, Tarinimi Tamunosa, Charles I. Osu, and Godson Ndubuisi Iwuoha. "Evaluation of Heavy Metals in Water, Sediments and African Catfish (Clarias gariepinus) Obtained from Earthen and Concrete Fish Ponds in Port Harcourt, Nigeria." Scholars International Journal of Chemistry and Material Sciences 7, no. 11 (2024): 168–77. https://doi.org/10.36348/sijcms.2024.v07i11.004.

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This study investigates the concentrations of heavy metals and physicochemical properties of water, sediment, and African catfish (Clarias gariepinus) from earthen and concrete ponds used for aquaculture in Port Harcourt, Rivers State, Nigeria. Physicochemical analysis showed that water from earthen ponds had a pH of 5.60-7.52, salinity of 0.06-1.03 ppt, conductivity of 170-1671 μScm⁻¹, and turbidity of 38.71-163 NTU. In contrast, concrete ponds had a pH of 6.75-7.56, salinity of 0.18-0.71 ppt, and conductivity of 325-1442 μScm⁻¹, indicating differences in water quality. Water samples from ear
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33

Kumar Das, Basanta, Hena Chakraborty, Ranjan Kumar Manna, Subhendu Mandal, Amiya Kumar Sahoo, and Uttam Kumar Sarkar. "Assessing growth performance and survival of wild shad Tenualosa ilisha fry in two earthen ponds with different feeding regime: A new insight for conservation." Journal of Aquaculture and Marine Biology 11, no. 1 (2022): 9–15. http://dx.doi.org/10.15406/jamb.2022.11.00330.

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The present study describes the rearing and growth performance of Hilsa (Tenualosa ilisha) fry in experimental trial performed in earthen pond ecosystem located adjacent to river Rupnarayan for developing in-situ rearing protocol of fry collected from the wild sources. The seed was collected during May, 2020 from the river and stocked in two different rearing ponds. One of the ponds was provided with artificial feed and another fed with chicken offal to raise the production of zooplankton. Routine monitoring of water and soil quality parameters as well as other biotic communities like plankton
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34

Petersen, Andreas, Jens Strodl Andersen, Tawatchai Kaewmak, Temdoung Somsiri, and Anders Dalsgaard. "Impact of Integrated Fish Farming on Antimicrobial Resistance in a Pond Environment." Applied and Environmental Microbiology 68, no. 12 (2002): 6036–42. http://dx.doi.org/10.1128/aem.68.12.6036-6042.2002.

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ABSTRACT Integrated fish farming combines livestock production with fish farming. Animal manure is shed directly into a fish pond as fertilizer and supports the growth of photosynthetic organisms. The livestock, mainly chickens and pigs, is often fed feed containing growth promoters. In this study we investigated the impact of integrated fish farming on the levels of antimicrobial-resistant bacteria in a pond environment. One integrated broiler chicken-fish farm was studied for 2 months immediately after the start of a new fish production cycle. A significant increase over time in the resistan
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35

Yan, Yifeng, Junbo Zhou, Chenghao Du, et al. "Relationship between Nitrogen Dynamics and Key Microbial Nitrogen-Cycling Genes in an Intensive Freshwater Aquaculture Pond." Microorganisms 12, no. 2 (2024): 266. http://dx.doi.org/10.3390/microorganisms12020266.

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Intensive aquaculture in high-density hybrid snakehead [Channa maculata (♀) × Channa argus (♂)] fishponds can lead to toxic conditions for fish. This study investigated nitrogen migration and transformation in these fishponds during different cultivation periods. Using qPCR technology, we analyzed the abundance variation of nitrogen-cycling microorganisms in water and sediment to reveal the nitrogen metabolism characteristics of hybrid snakehead fishponds. The results showed that fish biomass significantly impacts suspended particulate matter (SPM) flux. At the sediment–water interface, inorga
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36

Dayo, Farkhanda, and Dr Mushtaque Ali Jakhrani. "RISK ASSESSMENT AND DETERMINATION OF ARSENIC AND HEAVY METALS IN FISH SPECIES COLLECTED FROM FISH PONDS OF KANDHKOT SINDH PAKISTAN: AN IMPACTFUL STUDY." Kashf Journal of Multidisciplinary Research 1, no. 12 (2024): 36–45. https://doi.org/10.71146/kjmr148.

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Assessing risks and quantifying arsenic and other toxic metals in species of fish are essential for protecting public health and ensuring the safety of seafood consumption. Using a microwave digestion technique and inductively coupled plasma optical emission spectroscopy, this study provides the first report of toxic metal concentration in two fish species found in Pakistan, Cirrhinus Mrigala (Mrigal) and Labeo Rohita (Rohu) fish species caught from Muhamadani and Baloach ponds from District Kandhkot, Sindh, Pakistan. The sediment, water, bioaccumulation factor, contamination factor, pollution
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37

BHARDWAZ, KASHISH, T. K. GHOSH, S. ADHIKARI, et al. "CARBON BALANCES IN SELECTED AQUACULTURE PONDS OF GUMLA DISTRICT, JHARKHAND, INDIA." Journal of the Inland Fisheries Society of India 55, no. 3 (2024): 347–54. http://dx.doi.org/10.56093/jifsi.55.3.2023.148766.

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The present work of carbon balances in some aquaculture ponds in Gumla district, Jharkhand was conducted from July 2021 to November 2022 in three ponds with feeding and three ponds in non-feeding systems of fish culture. The pond sizes varied from 0.7 to 1.62ha, and the water depth of ponds varied from 1.5 to 1.8 m. The fish culture practices consisted with Labeo rohita (Rohu), Catla catla (Catla), and Cirrhinus mrigala (Mrigal). The average fish production was 3000kg ha-1 yr-1 in feeding ponds and 1520 kg ha-1 yr-1 in non-feeding ponds. The physicochemical parameters were optimal in these pon
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38

Roy, Sangeeta, and Surjya Kumar Saikia. "Characterization of Some Physico-Chemical Parameters of Water Bodies Inhabited by Small Indigenous Fish Species (SIFs): A Case Study." European Journal of Aquatic Sciences 2, no. 3 (2023): 1–7. http://dx.doi.org/10.24018/ejaqua.2023.2.3.16.

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The physico-chemical properties of water bodies play crucial role in determining the life history as well as assemblage of inhabitant fish. The aim of this study was to analyse some water and sediment content parameters of inhabitant water bodies and investigate if there persists any correlation between physico-chemical parameters and fish assemblage. Freshwater ponds around Birbhum district, West Bengal (India) were selected for collection of water, sediment, and fish species samples. Temperature (°C), dissolved oxygen (DO), pH, nitrogen and phosphorous contents of water and sediment were ana
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39

Pelić, Miloš, Željko Mihaljev, Milica Živkov Baloš, et al. "Health Risks Associated with the Concentration of Heavy Metals in Sediment, Water, and Carp Reared in Treated Wastewater from a Slaughterhouse." Water 16, no. 1 (2023): 94. http://dx.doi.org/10.3390/w16010094.

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The use of purified slaughterhouse wastewater in carp ponds, and the use of wastewater from the pond for the irrigation of agricultural fields, was the basis for the construction of an integrated system of agricultural production as a sustainable solution for the food and fish production industries. The negative side of such integrated production systems is the concern related to the safety of fish meat produced in such a system. The aim of this research was to determine the concentration of heavy metals and metalloids in the wastewater from the slaughterhouse, in the pond water and sediment,
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40

Y., H. Hsu, M. Kao C., F. Chen K., and R. Ho J. "Causes of fish kill in a natural water purification system." International Journal of Management Sciences and Business Research 3, no. 9 (2014): 09–16. https://doi.org/10.5281/zenodo.3457675.

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An incident of fish kill occurred in the detention pond of a natural water purification system. The objective of this study is to reveal the cause of the incident. Novel measurements unprecedentedly employed in this study include: SOD to measure sediment oxygen decay; PCR to find sediment microbial activity. Algal bloom was the main reason for the serious fish kill. Particle size analysis demonstrated that large particles were settling in the upstream region. Chlorophyll A, COD, SS, phosphorus and E coli were following the stream direction. The end of the measuring point, the detention pond, d
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41

Zhang, Xizhao, Yang You, Fei Peng, et al. "Interaction of Microbiota between Fish and the Environment of an In-Pond Raceway System in a Lake." Microorganisms 10, no. 6 (2022): 1143. http://dx.doi.org/10.3390/microorganisms10061143.

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Due to its ability to collect and remove aquaculture waste, an in-pond raceway system (IPRS) has been used to decrease the uncontrolled waste discharge in the traditional cage aquaculture method in large water bodies. However, when applied to large water bodies, its environmental performance is still lacking. This study focused on analyzing the microbial characteristics and the interaction between largemouth bass (gill and gut) microbiota and the environment (water and sediment) microbiota of an IPRS. Further, it revealed the primary relationship from the perspective of microbiota in the IPRS.
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42

Aladesanmi, Omolara T., Isaac F. Adeniyi, and Ibukun M. Adesiyan. "Comparative Assessment and Source Identification of Heavy Metals in Selected Fishpond Water, Sediment and Fish Tissues/Organs in Osun State, Nigeria." Journal of Health and Pollution 4, no. 7 (2014): 42–53. http://dx.doi.org/10.5696/2156-9614-4-7.42.

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Background. The potential toxicity of metals in water may have detrimental effects on the biochemical processes of aquatic organisms, especially fish, which serve as a source of protein in the protein-deficient Nigerian diet. Objective. The present study aimed to determine the concentration of heavy metals in African catfish (C. gariepinus) and investigate the health risk associated with heavy metals in fish. Methods. Heavy metal concentrations in the water samples were determined using atomic absorption spectrophotometry (AAS) and particle induced x-ray emission spectroscopy (PIXE) for sedime
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43

Haider, Md, Md Islam, Md Mukit, and Md Uddin. "Viable bacterial counts of the Pangasius catfish (Pangasianodon hypophthalmus), their responses to seasonal variations of physicochemical parameters, and bacterial counts of the cultured ponds." Journal of Advanced Veterinary and Animal Research 9, no. 4 (2022): 702. http://dx.doi.org/10.5455/javar.2022.i639.

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Objectives: The study was undertaken to evaluate the influences of some physicochemical param¬eters and viable bacterial counts in cultured ponds (water and sediment) on the viable counts of the Pangasius catfish (Pangasianodon hypophthalmus) (gill and intestine) on a seasonal scale. Materials and Methods: Physicochemical parameters, viz., ambient temperature, water tem¬perature, water transparency, pH of the pond waters, and viable bacterial counts of pond water, sediment, fish gills, and intestines, were monitored during four different seasons. The responses of viable counts of bacteria to t
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44

Kukkonen, J. V. K., E. Punta, P. Koponen, et al. "Biomarker Responses by Crucian Carp (Carassius Carassius) Living in a Pond of Secondary Treated Pulp Mill Effluent." Water Science and Technology 40, no. 11-12 (1999): 123–30. http://dx.doi.org/10.2166/wst.1999.0703.

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Biochemical and histological biomarkers by the adult crucian carp (Carassius carassius (L.)) living in a biologically treated pulp mill effluent were studied. Enocell pulp mill in Uimaharju, Finland, discharges its effluents through a waste water pond to the River Pielisjoki. This pond harbours an introduced crucian carp population that apparently reproduces on site. The objective of the present study was to measure possible hormonal effects of treated pulp mill effluent on crucian carps living in a wastewater pond. Adult fish were collected for analysis by traps. A reference population was sa
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45

Sapronova, V., R. Novitskyi, O. Kolomiitseva, and A. Buleyko. "Heavy metal contents in water, bottom sediments and fish of water bodies of different purposes in Dnipropetrovsk region." Ribogospodarsʹka nauka Ukraïni., no. 2(68) (June 28, 2024): 23–39. http://dx.doi.org/10.61976/fsu2024.02.023.

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Purpose. Assessment of the dynamics of heavy metal accumulation in water, bottom sediments, and fish of water bodies of different purposes in Dnipropetrovsk region. Methodology. The study on heavy metal contents in water, bottom sediments, and hydrobionts (fish) was conducted at various water bodies (Dnipro-Donbas hydraulic canal), fish ponds (ponds of PrJSC “AgroSoyuz”, PrJSC “Petrykivsky Rybhosp” and PE «Agrofirma «Nakhodka»), and multipurpose reservoirs (Dnipro reservoir, Sholokhivske reservoir) in Dnipropetrovsk region from 2015 to 2024. The determination of heavy metal concentrations (Pb,
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46

Gál, Dénes, Pál Szabó, Ferenc Pekár, Éva Kerepeczki, and László Váradi. "Experiments on the Nutrient Removal and Retention of an Integrated Pond System." Acta Agraria Debreceniensis, no. 16 (December 6, 2005): 18–23. http://dx.doi.org/10.34101/actaagrar/16/3283.

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A combined intensive-extensive fishpond system developed for the purification and re-use of intensive fishpond effluent water was studied during a three-year experimental period. The investigated pond system consists of five small-size intensive culture ponds of 1 ha total water surface area with 1.5 m water depth and a 20 ha extensive culture pond with 1.0 m average water depth. The water was recirculated between the intensive and extensive ponds with around 60 days retention time in the extensive treatment pond.Carbon, nitrogen and phosphorus budget and water purifying capacity were describe
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47

Michel, Jacqueline, Frank Csulak, Deborah French, and Molly Sperduto. "NATURAL RESOURCE IMPACTS FROM THE NORTH CAPE OIL SPILL." International Oil Spill Conference Proceedings 1997, no. 1 (1997): 841–50. http://dx.doi.org/10.7901/2169-3358-1997-1-841.

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ABSTRACT The North Cape spill of 828,000 gallons of home heating oil was unique in that the natural resources most affected by the spill were water column and benthic resources. There was a fishery closure, extensive mortality of offshore benthic organisms (e.g., lobsters, surf clams, crabs), oil contamination of the water and sediments of the coastal salt ponds, and exposure offish in the salt ponds. Studies initiated during the preassessment phase of the natural resource damage assessment included assessment of: direct mortality and reduced reproduction of lobster, winter flounder, and pipin
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48

Homklin, Supreeda, Theerachit Wattanodorn, Say Kee Ong та Tawan Limpiyakorn. "Biodegradation of 17α-methyltestosterone and isolation of MT-degrading bacterium from sediment of Nile tilapia masculinization pond". Water Science and Technology 59, № 2 (2009): 261–65. http://dx.doi.org/10.2166/wst.2009.868.

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The fast growing and highly tolerant fish Nile tilapia is one of the most commonly raised fish in the aquaculture industry. To produce an all-male population, a common practice is to feed the Nile tilapia fry with 17α-methyltestosterone (MT)-impregnated food. Uneaten fish food with MT may accumulate in the masculinization ponds and be released into the receiving waters. Not much is known about the fate of MT in the fish farms and in the receiving streams. The objective of this study is to investigate the biodegradation of MT under aerobic condition and to isolate responsible microorganisms. Ae
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49

Kiyuka Nyaundi, Joseph, Albert Getabu, James Onchieku, et al. "Occurrence and distribution of Organochlorine Pesticide Residues in Water and Sediments of Earthen Fish Ponds in South Western Kenya." Uganda Journal of Agricultural Sciences 19, no. 2 (2021): 47–60. http://dx.doi.org/10.4314/ujas.v19i2.5.

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Persistent organochlorine residues in the environment are a threat to ecological health of aquatic organisms and pose a health risk to both animals and human consumers. Organochlorine pesticides were determined in water and sediments collected during wet and dry season from selected riverine and earthen fish pond sites in high altitude catchment areas within Kuja River (Kenya) between August 2016–May, 2017. Analysis of DDT and metabolites, Hexachlorocyclohexanes (HCHs) isomers and cyclodienes using a gas chromatograph (GC), and electron capture detector (ECD), confirmed using GC - Mass Spectro
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Li, Miaoyu, Bingwen Xi, Ting Qin, Kai Chen, and Jun Xie. "Isolation and characterization of AHL-degrading bacteria from fish and pond sediment." Journal of Oceanology and Limnology 37, no. 4 (2018): 1460–67. http://dx.doi.org/10.1007/s00343-019-8137-6.

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