aquaculture design Articles

  • Root vegetables harvest and farm development

    Root vegetables season The autumn start is the time when vegetable producers have a lot of work. A collection of vegetables begins. Tension and nerves are often associated with it. All because the priority for farmers is to collect crops for which they worked hard all year round. It is important to make a good choice and select the machines suitable to your needs and four farm ...


    By Weremczuk Agromachines

  • Estimating preferences for non-market attributes of aquaculture and sustainable seafood production: methods and empirical applications

    If aquaculture is to promote sustainable seafood production, the public must be willing to accept associated tradeoffs. Tradeoffs may include impacts on a variety of environmental and social attributes. Public preferences for aquaculture may differ according to type of operation, species, region, and other factors. Stated preference methods can assist policymakers in designing balanced, ...


    By Inderscience Publishers

  • Bioeconomic modelling and salmon aquaculture: an overview of the literature

    Bioeconomic models can be used to assist producers and decision-makers in identifying optimal production system designs, operation management strategies, and alternative development and policy approaches. This paper reviews the literature on bioeconomic modelling in aquaculture since 1993 and builds on an earlier article by Leung (1994) which examines this literature for the 1974-1993 period. In ...


    By Inderscience Publishers

  • Enhancing competitiveness, product quality and market integration of small mussel growers: a South African case study

    The key proposition in this paper is that the competitiveness of small firms operating in emerging economies and producing highly perishable products (e.g. mussels) is largely contingent on their ability to contend with high Transaction Costs (TC). The study examines the role of contracting in reducing TC associated with small-scale mussel farming in South Africa. Market risks, uncertainties, ...


    By Inderscience Publishers

  • Model of an aquaponic system for minimised water, energy and nitrogen requirements

    Water and nutrient savings can be established by coupling water streams between interacting processes. Wastewater from production processes contains nutrients like nitrogen (N), which can and should be recycled in order to meet future regulatory discharge demands. Optimisation of interacting water systems is a complex task. An effective way of understanding, analysing and optimising such ...


    By IWA Publishing

  • Aquaculture induced erosion of tropical coastlines throws coastal communities back into poverty

    Shallow tropical coastlines harbour unique mangrove ecosystems, which support livelihoods and provide a natural barrier against coastal flooding. Non-sustainable land-use practices, such as large-scale clear cutting of mangroves for aquaculture, ground water withdrawal and alteration of river flows, result in rapid subsidence. The collapse of aquaculture production, due to pollution and disease, ...


    By Wetlands International

  • 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.

  • Reasonably Priced Fish Feed Pellet Machine in Nigeria

    Currently, fisheries and aquaculture continue to be crucial sources of food, nourishment, earnings and sustenance for hundreds of millions of people all over the world, especially for Nigerians. Fortunately, all the above datum also tell that there are big profits for Nigerian fishery, fish farmers, fish feed manufacturers and suppliers if they can use scientific methods to develop aquaculture, ...


    By Fanway Fish Feed Machinery

  • CO2 Removal and Stripping Column Ventilation Rate at Bell Aquaculture

    Monitoring and controlling CO2 level in Recirculating Aquaculture Systems (RAS) is crucial not only for fish health but it is used increasingly for efficient management. Under supervision of Steve Summerfelt, a joint project has studied costs savings with optimizing ventilation based on CO2 continuous monitoring. The CO2 probe used in that project came from ...


    By Franatech GmbH

  • Ghana Fish Farming and Fish Feed Production

    There are two main ways to obtain feed for fish farming in Ghana: locally produced feed and imported feed. However, fish feeds locally produced are in bad quality as most of them are not extruded. Imported feed is appropriately 30% more expensive than locally produced. So importation is not a quick fix. On average the costs for Tilapia farming in Ghana consist of 70% of the feed cost. Therefore, ...

  • Measurement of the amount of DissolvedOxygen

    Dissolved Oxygen (DO) is the term used for the measurement of the amount of oxygen dissolved in a unit volume of water. In water quality applications, such as aquaculture (including fish farming) and waste water treatment, the level of DO must be kept high. For aquaculture if the DO level falls too low the fish will suffocate. In sewage treatment, bacteria decompose the solids. If the DO ...

  • Processing and Application of Floating and Sinking Fish Feed

    In virtue of mature processing technology and unique advantages in fish farming, extruded floating and sinking fish feed has become the most ideal fish feed in modern aquaculture industry. With the further development of fish farming industry, extruded fish feeds have obtained more and more wide applications in virtue of unique advantages including high nutrient, good palatability, strong ...


    By Fanway Fish Feed Machinery

  • Mangrove Capital

    This paper introduces Mangrove Capital; a programme conceived by Wetlands International and partner organisations, that aims to bring the values of mangroves to the fore and provide the knowledge and tools necessary for the improved management of mangrove forests. The project will enable governments, private sector organisations and local communities in Indonesia to manage mangroves, so that they ...


    By Wetlands International

  • Cultivation of microalgae (Oscillatoria okeni and Chlorella vulgaris) using tilapia-pond effluent and a comparison of their biomass removal efficiency

    The uptake of dissolved nutrients by microalgae is the primary way to remove nitrogen in aquaculture systems. Many authors have studied the use of microalgae to treat wastewater from aquaculture. However, excessive microalgae accumulation may cause high levels of organic matter and suspended solids in the final effluent. Thus, an efficient way to remove excess algae is needed in wastewater ...


    By IWA Publishing

  • Simulations of nutrient emissions from a net cage aquaculture system in a Brazilian bay

    Hydrodynamics and transport simulations were conducted with the modeling software TELEMAC-2D on Icó-Mandantes bay, a branch of the Itaparica reservoir. The bay has a maximal operational water level amplitude of 5 m and is suffering from eutrophication and algae bloom. Therefore, we investigated low and high water level scenarios with two different high resolution meshes, with the purpose to ...


    By IWA Publishing

  • Indonesia: Opportunity for shrimp aquaculture - Case Study

    Great opportunities exist in shrimp culture in Indonesia due to land availability and ideal climate. Already, this country is one of the largest producers in the world. Many farmers use AIRE-O2® aerators as their 'aerator of choice' because the 'performance is better than the paddlewheel and the AIRE-O2® aerators keep the bottom of the ponds cleaner,' said the manager at this farm. The P. ...

  • Development of new methods to assess invertebrate immunology and immunotoxicology in aquaculture: oysters and lobsters as examples

    In order to support healthy aquaculture, we developed assays to assess immune functions and their susceptibility to environmental conditions or toxicants. Flow cytometry allowed the rapid and quantitative analysis of oyster and lobster cell subpopulations and their functions (phagocytosis, peroxide production, natural killer cell-like activity and apoptosis). We demonstrated experimentally that ...


    By Inderscience Publishers

  • Shellfish culture in Chile

    The present situation and future projections regarding shellfish culture in Chile are analysed. Production has increased exponentially, mainly of the 'Chilean mussel' Mytilus chilensis (Hupe) and the 'northern scallop' Argopecten purpuratus (Lamarck). At present, seven species are cultured, two of which were introduced. The total invertebrate production corresponding to cultures has increased ...


    By Inderscience Publishers

  • A conceptual framework for the sustainability assessment procedures of the shrimp aquaculture industry in coastal Bangladesh

    Shrimp aquaculture is now establishing itself as an important aquaculture industry in coastal Bangladesh. However, the benefit of this industry is concentrated to only the interests of a specific group of people who contribute a significant amount of foreign earnings to the nation, while the present development process is posing a challenge to the coastal sustainability, as well as the industry ...


    By Inderscience Publishers

  • Biological water treatment in aquaculture by means of “Mutag BioChip™ RAS Process“

    Aquaculture or fish farming means the artificial breeding and raising of aquatic creatures. They include fish as well as crustaceans and shellfish, which are raised and stocked under controlled conditions by using techniques and technologies offering an increased level of productivity which cannot be realized under natural conditions. Due to the increased demand for freshly caught fish and ...


    By Multi Umwelttechnologie AG

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