Aquaculture Ponds Articles

  • Study on method and mechanism of deep well circulation for the growth control of Microcystis in aquaculture pond

    In order to control the growth of Microcystis in aquaculture ponds and reduce its adverse effect on water quality and aquaculture, a production-scale experiment of deep well circulation treatment was carried out in an aquaculture pond with water surface area of 63,000 m2 and water depth of 1.6–2.0 m. Compared with the control pond, the experiment pond had better water quality as ...


    By IWA Publishing

  • Prevent Fish Kill in the Spring

    Pond Deicing Can Help Prevent Fish Kill Keeping the pond open will help keep oxygen in the water, attract water fowl and help prevent fish kills in the spring. The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water ...


    By Keeton Industries, Inc.

  • Water budgets for freshwater fish ponds of Andhra Pradesh, Orissa and West Bengal, India

    The water budgets for some aquaculture systems in three states viz. Andhra Pradesh, Orissa and West Bengal were determined in the present study. The average evaporation and seepage loss from the aquaculture ponds throughout the year in Cuttack, Kendrapara, Jajpur, and Puri districts of Orissa were 164 ± 8.3 and 73 ± 16.5 cm, respectively; 152 ± 10 and 90 ± 16 cm, respectively, in South and ...


    By IWA Publishing

  • Ecological impacts of fluridone and copper sulphate in catfish aquaculture ponds

    Fluridone and copper sulphate are often used for controlling macrophytes and algae in aquaculture ponds. The present study examined the ecological effects of these chemicals on macrophyte, phytoplankton, and zooplankton biomass, plankton community structure, water quality parameters, and fish survival and yield in catfish culture ponds using a randomized complete block design. The estimated ...


    By John Wiley & Sons, Ltd.

  • Modifications of macrobenthos assemblages on land–based fish farm phytotreatment basins in the Orbetello lagoon

    In the Orbetello lagoon basin there are some intensive land–based fish–farming facilities which contribute to cause a significant cyclic development of the opportunistic chorophycea Ulva laetevirens, and consequent serious decay events in spring and summer. To minimise the nutrients' impact, fish farming was supplied with phytotreatment system. The purpose of this study was to evaluate the ...


    By Inderscience Publishers

  • Taenia eggs in a stabilization pond system with poor hydraulics: concern for human cysticercosis?

    The objective of this study is to compare the removal of Taenia eggs to the removal of Ascaris eggs in a wastewater stabilization pond system consisting of three ponds in series, where the hydraulic residence time distribution has been characterized via a tracer study supported by computational fluid dynamics modeling. Despite a theoretical hydraulic retention time of 30 ...


    By IWA Publishing

  • Farm pond cleanup case study

    Midwestern US Farm Pond Cleanup Using Microcat AL3 Pond Cleaner Problem A three-acre farm pond containing approximately 9 million gallons of spring water and rainwater runoff in the Midwestern United States is experiencing high suspended solids with related fish die off. The fish population includes 5 lb bass, blue gill and crappie bass. The problem is more acute in ...


    By Bioscience, Inc.

  • Previous exposure of predatory fish to a pesticide alters palatability of larval amphibian prey

    Habitat preferences of organisms are reliant upon a variety of factors. Specifically with amphibians, preferences can depend on factors such as food availability, water quality, or the presence of potential predators. Because some amphibians breed in permanent bodies of water (e.g., ponds), the threat of predation (e.g., from fish) is constant. Thus, some amphibians are unpalatable to many ...


    By John Wiley & Sons, Ltd.

  • Mangrove coasts: a muddy story (Part 3)

    In my first blog, I introduced the term “ecosystem services”, which has become a popular way to refer to the value of ecosystems. This is an important concept as it provides a counter-argument to the often narrow-minded and short-eyed approach of ...


    By Wetlands International

  • Aquatic environment and yield of sea bass (Lates calcarifer, Bloch) in ponds

    This study was conducted for three years to investigate the aquatic parameters and growth of sea bass at varying stocking densities and sizes and requirement of quantity of forage fish for its culture in ponds. Two separate experiments were conducted: one for determining growth and seed stocking density and the other for ascertaining of quantity of forage fish. Under experiment 1, two trials ...


    By Inderscience Publishers

  • Protective role of dietary N‐acetylcysteine on the oxidative stress induced by cylindrospermopsin in tilapia (Oreochromis niloticus)

    Cylindrospermopsin (CYN) is a toxin produced by various cyanobacteria species. Fish can be exposed to this cyanotoxin in their natural environments and in aquaculture ponds, and toxic effects can be derived. The present study investigated the effects of dietary N‐acetylcysteine (NAC) on the oxidative stress induced by pure CYN and CYN from lyophilized cells of Aphanizomenon ovalisporum in tilapia ...


    By John Wiley & Sons, Ltd.

  • Pacific fisheries need tech to track climate impact

    Climate change could benefit some Pacific fisheries, but tracking the success of adaptation needs effective monitoring, says Johann Bell. Climate change could derail plans by Pacific Island countries and territories (PICTs) to use ...


    By SciDev.Net

  • The treatment of (fish) ponds on an environmentally friendly manner with the usage of the LG Sonic case study

    Aquaculture, or aqua farming, is the cultivation of aquatic organisms, such as fish or shrimps, in a controlled environment. Where this happens in a closed water container, algae may occur that pollute the water and may damage the organisms grown. Many of the traditional methods to fight algae are either insufficient, cumbersome, environmentally unfriendly, or all of these. LG Sonic uses ...


    By LG Sonic

  • Estimation of norovirus and Ascaris infection risks to urban farmers in developing countries using wastewater for crop irrigation

    A quantitative microbial risk analysis—Monte Carlo method was used to estimate norovirus and Ascaris infection risks to urban farmers in developing countries watering their crops with wastewater. For a tolerable additional disease burden of≤10−4 DALY loss per person per year (pppy), equivalent to 1 percent of the diarrhoeal disease burden in developing countries, a norovirus reduction of 1–2 log ...


    By IWA Publishing

  • Singapore: red Tilapia spawns profits

    At this research and commercial farm, freshwater red tilapia (Oreochromis , spp.) is a major product, selling live for a premium price. Harvest size is 600 to 700 grams each, following a six month grow-out period. The senior manager reported, 'Operation with AIRE-O2® aerators is quite good and reliable. We are able to sustain good densities of fish in the ponds.' The deputy manager also reported ...

  • Kfar Ruppin, Israel A Case Study

    Case Study: Fish FarmClient: Kibbutz Kfar RuppinStart Up: 2004Capacity: 120 m3/h circulation Overview Kfar Ruppin is one of the leading fish farming coops in Israel. Recent restrictions on water consumption and discharge have led the coop to consider semi intensive closed loop fish ponds. The main objectives in closed loop fish farming applications are ...

  • Case study: Fish farm

    OverviewKfar Ruppin is one of the leading fish farming coops in Israel. Recent restrictions on water consumption and discharge have led the coop to consider semi intensive closed loop fish ponds. The main objectives in closed loop fish farming applications are prevention of Ammonia and Nitrite accumulation, and removal of suspended solids. Usually, the investment in a closed water cycle system ...

  • The improvement of livelihood and rural development by the exotic Pangasiid catfish farming in Bangladesh

    A study was conducted to improve the livelihood and rural development by the catfish (Pangasius hypophthalmus) farming in Mymensingh district in Bangladesh from April 2005 to March 2006 using Participatory Rural Appraisal (PRA) tools. A total of 117 respondents were randomly chosen, among them 7 hatchery owners, 20 nursery pond owners, 20 fingerling traders, 30 Pangus farmers, 40 market ...


    By Inderscience Publishers

  • Minnesota, USA: A challenging climate for fish

    Icy winters and hot summers resulted in fish kills at this Minnesota farm raising walleyes, muskellunge, black crappies and northern pike. In winter, ice and snow on the pond’s surface caused dissolved oxygen levels to drop below 5 ppm, stressing the fish. Summer heat decreased the pond’s capacity to hold dissolved oxygen and caused excessive algae growth. The farm tried fountain aerators to ...

  • Colombia: Tilapia venture doubles yields

    The first red tilapia farm in Colombia, South America gained government approval as a 'high priority project' due to its exportation goals. Since its start-up, production rates have doubled with the addition of AIRE-O2® aerators. Stocking densities increased from 5 to 10 animals per m 2. Dissolved oxygen (D.O.) levels increased from 2-3 ppm to 4.5-5 ppm. Production yields climbed from 30,000 ...

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