Aquaculture Ponds Articles

  • A novel growth method for diatom algae in aquaculture waste water for natural food development and nutrient removal

    Diatom algae are known to play an important role as primary producers in many diverse ecosystems, including artificial aquaculture ponds where they also aid in maintaining water quality by consuming excess nutrients. But factors influencing their growth are still poorly understood. In the present study the effect of micronutrients, N:P ratio and silica concentration on benthic diatom Synedra ...


    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 ...


    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

  • Wild Rose State fish hatchery renovation case study

    Wisconsin Department of Natural Resources Wild Rose, Wisconsin, USA After more than 100 years, the Wild Rose hatchery in central Wisconsin was showing its age. Wastewater discharge to a nearby Class 1 trout stream was also a cause of concern. With HDR as its fisheries consultant, the state decided to replace the facility based on the need to address comprehensive ...


  • State of the Art Information on Mangrove Ecosystems in Indonesia

    Status and Trends of Mangroves in Indonesia GENERAL CONDITION OF MANGROVES IN INDONESIA Indonesia is a tropical archipelago with coastlines measuring a total length of 95,181 km, making it the country with the fourth longest coastline in the world (EarthTrends WRI, 2003, and Rompas, RM.2009). All along the coast are the estuaries of ...


    By Wetlands International

  • ASM proven sonic wave technology remove filamentous algae of fishnets in a environmentally way!

    Fish net cleaning is one of the biggest costs in marine aquaculture management is weed growth on fish cages and the labour and plant costs devoted to cleaning nets is significant. Considerable effort and research has been devoted by ASM to this particular challenge and recent technological advances have been applied. Also,diseases are easily spread among farmed fish due to the ...

  • 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

  • Ecological swimming pond case study

    In spring 2009 LG Sound installed an LG Sonic in an ecological swimming pond in France. This pond has been suffering from the growth of filamentous algae for a long period of time. Even when the algae where removed, they grew back within a couple of days. Swimming or any other recreational use was made impossible in this pond. The LG Sonic products can shift the balance in a watery ecosystem to a ...


    By LG Sonic

  • 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 ...

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