Aquaculture Cages Articles

  • Pasture Trial – Waroona (2014/2015) - Case Study

    At Waroona in the Peel region of Western Australia in 2014, 12 by 1m square wire cattle cages were placed at random to evaluate the effects of Hibrix pasture treatment combined with 50kg/ha of super phosphate versus the growers standard fertiliser usage of 100kg/ha of super phosphate. The Hibrix treated plots produced significantly higher amounts of dry matter without any reduction in pasture ...


    By NW Solutions

  • In the fishing industry, gear recycling is finally catching on

    In 2013, Joel Baziuk had a problem. He had too many fishing nets, and no good way to get rid of them. But that was about to change. As operations supervisor of Steveston Harbour Authority, or SHA, just south of Vancouver, British Columbia, Baziuk is responsible for Canada’s largest commercial fishing harbor. At any given time, more than 400 vessels call ...


    By Ensia

  • Fish Farms - Inspections below the surface

    Fish farms are tackling the increased demand for aquatic food, while underwater drones are tackling regular and ongoing inspections to ensure fish health and the integrity of the enclosures. According to the Food and Agriculture Organization of the United Nations, by the year 2050, there will be nearly 2 billion more humans populating the earth. Meaning that we will need to produce ...


    By Deep Trekker Inc.

  • Derelict Fishing Net Removal - Case Study

    Over 5,600 derelict fishing nets had been removed from Puget Sound water by volunteer divers from depths up to 105 feet. Yet there remains many more in deeper water. Global Diving, working with Natural Resources Consultants for the Northwest Straits Foundation developed custom tooling and a ‘plan’ to remove the nets using a SAAB Cougar and Falcon ROV. First the ROV’s surveyed ...

  • 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

  • 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

  • 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 ...

  • Towards climate-responsible peatlands management

    Peatlands are lands with a naturally accumulated peat layer at their surface. They are found all over the world and come in many forms, display many different characteristics and are used in many different ways. Even though peatlands extend over a relatively small portion of the earth’s land surface, they hold a large pool of carbon. There is no universal definition of peatlands. For the ...


    By Wetlands International

  • Nets That Save Fish - Ocean bycatch isn’t inevitable — it’s a design challenge.

    Six years ago, the Norwegian coast guard filmed a Scottish fishing vessel riding gray swells, dumping 5 metric tons of dead fish back into the North Sea. Over the European Union catch quota, and so unable to keep all the fish they’d caught, the fishermen had to ditch some. To the Norwegians, who aren’t ...


    By Ensia

  • COOL: A salute to consumers in the International Year of Family Farming

    This month we are celebrating one particular aspect of the International Year of Family Farming: the consumer. In order to be successful, family farmers must always have consumers and their needs in mind, which is why NFU has been a long-time champion of Country-of-Origin Labeling (COOL) for meat, poultry and seafood. More than 90 percent of consumers want to know the origin of their food, and ...


    By National Farmers Union

  • Modern strains put Lake Victoria in critical condition

    Pollution and overfishing in Lake Victoria have become so severe that scientists believe they threaten the health and livelihoods of millions of East Africans.   And researchers in the three countries bordering the ...


    By SciDev.Net

  • Nets, nature and national parks

    Invitation to Bohuslän by Evert Taube Like blue-grey swell the Bohus mountains roll in desolate majesty against the rim of the Sea. But between its ancient bare hills is fertile land and ancient pastures. Here penetrates the Skagerrak with blue wedges and strong currents flow clear as crystal. And birch and willow stand lush and ash and oak by the barn and stables. Come, ...

  • 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 ...

  • 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 ...


    By LG Sonic

  • Green catering tips

    It's that time of the year again - party time. Whether it's St Patrick's Day, Easter, birthdays, Christmas, weddings, Thanksgiving, Halloween or Hanukkah, we all enjoy letting our hair down and having fun with friends and family! And with these events, come the mountains of munch-ables - tasty treats of every shape, colour and ingredient. But how green is our spinach really, and should we be ...


    By green24

  • Alternative futures for Southern Bluefin Tuna

    This paper examines the outcomes of alternative management scenarios for the Southern Bluefin Tuna (SBT) fishery over the next 30 years. Two criteria are used to characterise outcomes: economic efficiency as measured by the present value of net benefits generated and conservation as measured by the predicted size of the spawning stock biomass in 20 years' time (SSB20). A bioeconomic model, ...


    By Inderscience Publishers

  • Valuation and Management of Fishing Resources Under Price Uncertainty

    The traditional expected-net-present-value methods cannot properly capture the management flexibility and strategic value aspects of a fishery, and may understate its value. Instead, this paper develops a Real Options model to conceptualize and evaluate fishery exploitation flexibility. Specifically, general models to value the opportunity to either exploit or invest in a fishery are presented. ...


    By Springer

  • Contained Composting Systems Rewiew

    Having gained success in recycling yard trimmings, composters and recycling coordinators are reaching deeper into the organic residuals pile to capture other feedstocks. In particular, their sights are set on source separated food materials, from institutions (e.g. schools, hospitals), grocery stores and produce markets, food processors and commercial food service facilities (e.g. restaurants). A ...


    By BioCycle Magazine

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