Results 61 to 70 of about 2,360 (216)

Relationship of Atmospheric Nitrogen Deposition to Soil Nitrogen Cycling Along an Elevation Gradient in the Colorado Front Range

Earth's Future, Volume 13, Issue 1, January 2025.
Abstract Microbial processing of atmospheric nitrogen (N) deposition regulates the retention and mobilization of N in soils, with important implications for water quality. Understanding the links between N deposition, microbial communities, N transformations, and water quality is critical as N deposition shifts toward reduced N and remains persistently
Deborah A. Repert, Ruth C. Heindel, Sheila F. Murphy, Kaitlyn M. Jeanis   +3 more
wiley   +1 more source

Current Status of the Propagation of Basil in Aquaponic Systems: A Literature Review

Aquaculture Research, Volume 2025, Issue 1, 2025.
Basil (Ocimum sp.) is a commercially important herb that has been coupled with several aquatic organisms in aquaponic systems. The goal of this literature review was to aggregate the current knowledge on the status of basil production in aquaponic systems by identifying the different aquatic organisms cultured with basil and hydroponic subsystems ...
Aya S. Hussain, Paul B. Brown, Christyn Bailey   +2 more
wiley   +1 more source

Purification and characterization of ATPase fromNitrobacter winogradskyi [PDF]

FEMS Microbiology Letters, 1991
An ATPase was purified from Nitrobacter winogradskyi, and some of its molecular and enzymatic properties were determined. The enzyme was composed of two subunits of 64 and 59 kDa, respectively. The enzyme had its pH optimum at 9.5 and showed a specific activity of 7 units per mg protein.
T, Hara, A P, Villalobos, Y, Fukumori, T, Yamanaka   +3 more
openaire   +2 more sources

Impact of Commercial Probiotics on Growth, Prophenoloxidase, Superoxide Dismutase, and Digestive Enzyme Activity in Macrobrachium rosenbergii Cultured at Different Stocking Densities

Aquaculture Research, Volume 2025, Issue 1, 2025.
An experiment using a 4 × 3 factorial design was conducted to evaluate the impact of three commercial probiotics and a control (no probiotic treatment) on the growth, digestive, and immune enzymatic indices of prawns (Macrobrachium rosenbergii) at three stocking densities (2, 4, and 6 m−2).
Shikder Saiful Islam, Ramisa Nowshin, Joyanta Bir, Sadia Samiha Sarmin, Md. Rofiqul Islam, Afrin Sultana, Jannatul Ferdose, Airin Sultana, Fatima Tuz Zohora, Momotaz Khanom, Md Rony Golder, Md. Fahad Al Zobayer, Kishur Kumar Das, Mst. Anika Khatun, Sayma Sadia, Khandaker Anisul Huq, Christyn Bailey   +16 more
wiley   +1 more source

A relation between the temperature of atmosphere and the sludge in the wastewater treatment aeration tank [PDF]

Acta Montanistica Slovaca, 2006
Processes in the aeration tank remove nitrogen from organic substances from wastewater by using bacteria. Nitrification utilizes the metabolism of aerobic bacteria Nitrosomonas, Nitrococus, Nitrospira, Nitrobacter Nitrocystis and Nitrosobolus and the ...
Tomáš Bakalár, Eliška Horniaková
doaj  

Comparative Evaluation of the Zootechnical Performance, Body Composition, Haemato‐Biochemical Profile, and Enzymatic Activity of Nile tilapia (Oreochromis niloticus) Cultured in Biofloc and Conventional Rearing Systems

Aquaculture Research, Volume 2025, Issue 1, 2025.
This study compared the impacts of three aquaculture systems, a biofloc tank system (BTS) without sludge removal, a clear water (non‐biofloc) tank system (CTS), and an earthen pond system (EPS), on the zootechnical, biochemical, haematological, and enzymatic activities of Nile tilapia (Oreochromis niloticus). Monosex (male) fish (initial weight: 22.01 ±
Sharmin Aktar, Md. Shahin Parvez, Nirjhar Roy, Israt Jahan, Md. Naim Islam, Nusrat Jahan, Mst. Muslima Khatun, Sheikh Mustafizur Rahman, Md. Nazmul Ahsan   +8 more
wiley   +1 more source

Adaptive Biofiltration Strategy for an Evolutionary Relic: Assessing Bacterial Consortia for Nitrogen Management in Huso huso Aquaculture

Journal of Zoological Systematics and Evolutionary Research, Volume 2025, Issue 1, 2025.
Recirculating aquaculture systems (RASs) represent a sustainable solution for intensive fish production, offering 90%–99% water savings compared to conventional systems while preventing nutrient contamination of natural waterways. The accumulation of nitrogenous compounds, driven by factors, like overfeeding, fish waste, and insufficient water exchange,
Peyman Bagherian, Hamid Faghani Langarudi, Mohammad Reza Ghomi, Masood Ghane, Masoud Hashemi, Dharmendra K. Meena, Bushra Khan   +6 more
wiley   +1 more source

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod

Scientific Reports
Establishing microbiome signatures is now recognized as a critical step toward identifying genetic and environmental factors shaping animal-associated microbiomes and informing the health status of a given host.
Fanny Fronton, Richard Villemur, Dominique Robert, Yves St-Pierre   +3 more
doaj   +1 more source

Removal of nitrate and phosphate by aquatic plants during aquarium‐based ornamental fish production

North American Journal of Aquaculture, Volume 86, Issue 4, Page 413-423, October 2024.
Abstract Objective The rising demand for ornamental fish and plants in aquariums is met through industrial production. However, higher production densities may negatively impact water quality (such as ammonia, nitrate, nitrite, and dissolved oxygen levels), thus impacting production. This can be mitigated by utilizing specific aquatic plants to promote
Dániel Csontos, Zsuzsa Petra Bartal, László Bakacsy   +2 more
wiley   +1 more source

BIẾN ĐỘNG MẬT ĐỘ VI KHUẨN HỮU ÍCH TRONG AO NUÔI TÔM SÚ (PENAEUS MONODON) THÂM CANH

Tạp chí Khoa học Đại học Cần Thơ, 2010
Tổng vi khuẩn, Vibrio và một số nhóm vi khuẩn hữu ích đã được xác định trong ao nuôi tôm thâm canh tại tỉnh Sóc Trăng. Phương pháp thu mẫu được áp dụng theo (Huy 2003 và Chinabut et al., 2003).
Phạm Thị Tuyết Ngân, Nguyễn Hữu Hiệp   +1 more
doaj