Aquaculture System Articles on agriculture-xprt.com

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 and sustainable development: a regulatory or governance system?

Governance is defined as a process allowing actors to contextualise the regulatory system and, as a result, to transform sustainable development (SD) into an instrument of action. It will be all the easier for actors to familiarise themselves with SD and its implementation measures if these measures are similar to their representation on SD and its consequences on their activity and social life. ...

Jun. 18, 2009

By Inderscience Publishers

Carbon footprint of aquaculture in eastern India

The present study was conducted to determine the carbon (C) footprint of different aquaculture production systems in India. The total input (kg CE/ha) in different cultures, respectively, was 1,811 to 4,144 for scampi, 4,417 to 5,913 for polyculture, 4,090 to 8,873 for shrimp and 2,417 to 2,786 for carp. Of the total inputs, feed accounts for around 90% of carbon equivalent (CE), in all ...

Dec. 13, 2013

By IWA Publishing

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

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 ...

Oct. 1, 2008

By Inderscience Publishers

Performance of an <italic>in-situ</italic> rotating biological contactor in a recirculating aquaculture system

Performance of an in-situ rotating biological contactor in a recirculating aquaculture system

The start-up and activation of a nitrifying rotating biological contactor (RBC) and its performance inside a culture tank of rainbow trout were studied. First, in a lab-scale operation, the system was fed with a synthetic medium containing a high ammonia concentration (567 mg NH4+-N L−1) and operated at a high hydraulic retention time (HRT) (6.5 days) to minimize the wash-out of the biomass and ...

Dec. 1, 2011

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 ...

Feb. 25, 2016

By IWA Publishing

Open sea-based Aquaculture case study

Salmon farming is a multi-billion dollar global industry facing considerable difficulties posed by growing pressure from environmental regulatory bodies. Because marine organisms grow on and “foul” synthetic nets, oxygen available to fish is reduced and infectious diseases and parasites can spread among the fish. A test to study the reduction of fouling formation on netting of fish ...

Dec. 27, 2011

By LG Sonic

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.

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 ...

Jul. 16, 2015

By Franatech GmbH

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

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

Phosphatase activity and specific methanogenic activity in an anaerobic reactor treating sludge from a brackish recirculation aquaculture system

Anaerobic treatment of high salinity sludge from marine/brackish recirculation aquaculture systems is potentially limited by inhibition of enzymatic activities and cell lysis resulting from high osmotic pressures. To further address these limitations the following investigations were conducted: effect of salinity on phosphatase activity (PA), soluble microbial products (SMP) production, and ...

Jul. 19, 2013

By IWA Publishing

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

Monitoring Ozone (in the air) in Hatchery & Fish Farm Ozone Injection Systems

Hatcheries, fish farms and such in the aquaculture industry require clean water to maintain a high survival rate while rearing aquatic animals. Contaminated water increases the risk of infection which in turn can compromise production. A common way to disinfect water is by generating ozone on-site with an ozone generator, which is commonly inside an ozone generator room. For human safety, ...

Nov. 4, 2015

By Critical Environment Technologies Canada Inc. (CETCI)

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 ...

Mar. 24, 2016

By IWA Publishing

The advantages and disadvantages of culturing fish.

The advantages and disadvantages of culturing fish. Experts develop practical recommendations for decision-makers, scientists and producers for a sustainable development of Mediterranean aquaculture. Human demand for fish is growing steadily. With fisheries decreasing worldwide, aquaculture is becoming an important socio-economic alternative and a source of proteins and healthy oils. ...

Jul. 13, 2007

By International Union for Conservation of Nature (IUCN)

Effects of different management regimes on mangrove ecosystem services in Java, Indonesia

This new report, published by Wageningen University and Wetlands International, seeks to fill a significant gap in mangrove ecosystem service estimates. While several studies have sought to measure and value the ecosystem services provided by mangrove ecosystems in general, this new piece of research has for the first time conducted separate evaluations for zones that are characterised by ...

Aug. 20, 2015

By Wetlands International

Building with Nature Indonesia, Securing Eroding Delta Coastlines - Design and Engineering Plan

This design and engineering plan is produced during the inception phase (result 1) of the project and should be understood as a preparation for result 2 in which we aim to implement a large scale demonstration project in Demak. As such, this plan provides the concepts, reasoning, design and practicalities for the timely implementation of Building with Nature measures in Demak district. It sets ...

May 1, 2015

By Wetlands International

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