Aquaculture Water Articles on agriculture-xprt.com

Future Brief: Sustainable Aquaculture

Is sustainable aquaculture possible? Aquaculture is facing a new era of expansion in Europe. What are the environmental implications of this, and how can the sector expand sustainably? This Future Brief from Science for Environment Policy presents an overview of research into aquaculture’s impacts, and considers how it could develop in harmony with environmental goals. The ...

May 1, 2015

By European Commission

Protecting ireland’s aquaculture

Background Mulroy Bay in North West Ireland is a pristine marine environment with a number of rare and sensitive habitats. As a result Mulroy Bay is designated as a Special Area of Conservation under the EU Habitats Directive (92/43/EEC). The sheltered nature of the bay has seen it develop into a major centre for aquaculture producing shellfish and salmon with an annual value of ...

May 6, 2010

By The OTT Hydromet Group

The Scoop on Shellfish Aquaculture

The centerpiece of many culinary gurus''stunning' dishes, a shellfish’s journey often begins on a farm. Found on the coastal shores or in freshwater lakes, you’ll discover suspended shellfish aquaculture systems. Fixed on ropes, plastic trays or in mesh bags, these shelled, aquatic invertebrates are raised in a controlled environment ...

Nov. 25, 2016

By Deep Trekker Inc.

Aquaculture case study

Customer: USDA-ARS Catfish Genetics Research Unit,USA Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA. This research was executed by Ph.D. Paul V. Zimba from the USDA-ARS Catfish Genetics Research Unit, USA and Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA, utilizing the LG Sonic ultrasound technology in channel catfish production. An ...

Dec. 27, 2011

By LG Sonic

Canadian Aquaculture Industry: A Brief Outline

Deep Trekker is closely involved with fish farms around the world providing a reliable and easy to use inspection solution for submerged aquaculture structures. We proudly offer farmers a tool that allows them to keep a closer eye on their operations and ensures that they are also able to enact early measures to keep their sites sustainable. The aquaculture industry is a cause of debate for many. ...

Oct. 19, 2016

By Deep Trekker Inc.

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 ...

Aug. 5, 2016

By Multi Umwelttechnologie AG

Development of Indonesian Fish Farming & Aquaculture Production

Part 1.Fish Farms Market Overview in Indonesia Part 2.Reasons Why Fishery Industry Develops Fast in Indonesia Part 3.Fish Farm Types in Indonesian Part 4.Sustainable Development of the Fishery in Indonesia Fish Farms Market Overview in Indonesia Fish farming is the ...

Oct. 8, 2015

By Azeus Fertilizer Machinery Co.,Ltd.

A new reactor for denitrification and micro-particle removal in recirculated aquaculture systems

A ‘membrane-denitrification’ reactor (MDR) was developed and tested in a semi-technical recirculation aquaculture system in comparison to a double – without MDR – as reference system. The MDR consisted of a reactor with an ultrafiltration membrane unit for removal of micro-particles (e.g. sludge flocs, bacteria and parasites). Specific carrier material provided surfaces for biofilm growth in a ...

Dec. 27, 2016

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, ...

Oct. 1, 2015

By Wetlands International

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 ...

Feb. 25, 2016

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 ...

Sep. 23, 2015

By John Wiley & Sons, Ltd.

Aquaculture Facilities As A Potential Source Of Antibiotic Resistance To The Aquatic Environment

The development and proliferation of antibiotic resistance in pathogenic, commensal, and environmental microorganisms is a major public health concern. The extent to which human activities contribute to the maintenance of environmental reservoirs of antibiotic resistance is poorly understood. Aquaculture facilities are one possible source of resistance to the environment because of their ...

Oct. 13, 2007

By Water Environment Federation (WEF)

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 ...

Mar. 16, 2017

By IWA Publishing

The characteristics of immobilized granular sludge in the laboratory-scale stable partial nitrification-Anammox aquaculture water reactors

Immobilized granular sludge is of key importance for highly effective operation of partial nitrification and anaerobic ammonium oxidation (PN-Anammox) reactors. An observation and analysis on the composition of immobilized granular sludge in each reactor was conducted by using scanning electron microscopy (SEM) and fluorescence in situ hybridization. It was indicated that the diversity of ...

Jan. 4, 2016

By IWA Publishing

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 ...

Mar. 8, 2006

By Inderscience Publishers

Salmon aquaculture could incorporate seaweed and sea urchins to reduce nitrogen enrichment

Farming fish together with seaweed and other species could help improve the sustainability of aquaculture and reduce pollution. A new study provides a tool for designing sustainable fish farming systems and calculates their potential to recycle waste. An example of a salmon farming system incorporating seaweed and sea urchins could reduce nitrogen releases to the environment by 45%. Over half of ...

Jan. 21, 2016

By European Commission, Environment DG

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 ...

Mar. 16, 2017

By IWA Publishing

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 ...

Oct. 1, 2008

By Inderscience Publishers

Nutrient-Balance Modeling as a Tool for Environmental Management in Aquaculture: The Case of Trout Farming in France

The control and prevention of nutrient pollution from fish farming plays an essential role in the French regulatory framework. Assessing nutrient emissions from fish farms is important in terms of farm authorization, taxation, and monitoring. Currently employed strategies involve both water sampling and empirical modeling. This article reports the work and outcomes of an expert panel that ...

Feb. 1, 2005

By Springer

Pilot scale testing of advanced oxidation processes for degradation of geosmin and MIB in recirculated aquaculture

The presence of geosmin and 2-methylisoborneol (MIB) in recirculated aquaculture systems has a significant negative impact on the fish production due to poor flavour quality of produced fish and increased risk of rejection by fish processers. Advanced Oxidation Processes has a high potential for removal of geosmin and MIB in water and in this study UV/H2O2 and UV/O3 has been tested in pilot scale ...

Apr. 1, 2010

By IWA Publishing

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