aquaculture system Articles | Agriculture XPRT

Next Generation Recirculating Aquaculture System (RAS) Technology

The increasing number of aquaculture facilities based on RAS, or Recirculating Aquaculture Systems technology, is testament to the fact that this technology is proving highly advantageous. AquaMaof, a leader in recirculating aquaculture systems, brings a unique, multidisciplinary approach to indoor fish production, and is leading the way in developing innovative recirculating aquaculture system ...

Aug. 11, 2020

By AquaMaof Aquaculture Technologies, Ltd.

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

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

Anaerobic biodegradability of fish remains: experimental investigation and parameter estimation

The generation of organic waste associated with aquaculture fish processing has increased significantly in recent decades. The objective of this study is to evaluate the anaerobic biodegradability of several fish processing fractions, as well as water treatment sludge, for tilapia and sturgeon species cultured in recirculated aquaculture systems. After substrate characterization, the ultimate ...

Mar. 27, 2015

By IWA Publishing

Port McNeil, British Columbia- Kuterra - Case Study

The K’udas Limited Partnership was formed to develop a land-based facility using Recirculation Aquaculture System (RAS) technologies as an alternative to existing net pen salmon farming methods predominantly used in British Columbia, ...

Jan. 1, 2013

By PR Aqua, ULC

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 ...

Nov. 15, 2016

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

Mini RAS for Bangladesh Catfish Farm - Case Study

AquaLifeNet partnered with JAK International to bring the latest biological filtration technology to a Catfish farm in Mymensingh, Bangladesh. The team installed a Biofishency Mini Re-circulation Aquaculture System (Mini RAS) to treat and re-circulate the water. Biofishency’s project partner, Upgrade Solutions, provided eight corrugated metal fish tanks with PVC liners suitable for high ...

Aug. 4, 2016

By AquaLifeNet

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

Land-Based Aquaculture: Seven Tips for Investing Successfully

According to the United Nations Food and Agriculture Organization, aquaculture has become the world’s fastest growing food-producing industry, currently producing over 50 percent of consumed seafood worldwide. Out of all existing aquaculture methods, Recirculating Aquaculture Systems (RAS), a land-based aquaculture technology, offers significant advantages. What is a Land-Based Aquaculture ...

May 15, 2020

By AquaMaof Aquaculture Technologies, Ltd.

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

A prawn in the game - Case Study

The UK’s demand for king prawns is, apparently, insatiable. Most have travelled, frozen, 6,000 miles from the Far East and Central America leaving a massive carbon footprint, but Great British Prawns is changing that. The company opened its first sustainable king prawn farm in the Scottish village of Balfron, Stirlingshire, in the summer of 2019 and is now supplying fresh prawns to hotels ...

Jan. 12, 2021

By Warden Biomedia

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 ...

Nov. 20, 2012

By IWA Publishing

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

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

Land-based Aquaculture: Meeting the Challenge of the UN Sustainable Development Goals (SDGs)

In 2015, all United Nations Member States agreed to 17 Global Goals, officially known as the Sustainable Development Goals, or SDGs. These goals serve as a call to action aimed at ending poverty, fighting inequality and addressing the urgency of climate change, by 2030. They are part of a broader global movement encouraging all industries — including aquaculture — to adopt more ...

Aug. 2, 2020

By AquaMaof Aquaculture Technologies, Ltd.

Fish Farm Upgrade in India - Case Study

AquaLifeNet has helped the Sultan Fish Farm in India to upgrade and expand their fish farming operation to produce a more valuable crop using our unique aquaculture system. The Sultan Farm is located in the town of Butana in the Haryana district north of Delhi. They had been growing an annual crop of 15-20 tonnes of carp fish in earth ponds, but they decided to expand and create a more efficient ...

Jul. 5, 2019

By AquaLifeNet

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 – protected from hungry predators. Farmed ...

Nov. 25, 2016

By Deep Trekker Inc.

Intensive Aquaculture - What Are the Benefits? - Case Study

Land-based aquaculture involves farming fish and shrimp in contained tanks or ponds by pumping in water. It is usually characterized by significant land use, high water consumption and low productivity. AquaLifeNet has developed a system of free-standing fish tanks and mini-RAS biological filters that make intensive land-based fish farming possible even in places where land and water are ...

Aug. 24, 2016

By AquaLifeNet

Sustainable Aquaculture in Earthen Ponds - Case Study

As aquaculture becomes more popular and sophisticated, many companies are offering exciting new technologies that require major infrastructure investment. But what about existing local fish farms – how can fish farmers keep up with developments without going into debt? The majority of land-based aquaculture centers around the world use earthen ponds. This traditional extensive farming ...

Oct. 10, 2016

By AquaLifeNet

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