fish tank News

  • For lively fish in the water

    For 30 years, trout have been cultivated at the Winkelmann farm in Wietzendorf (Lower Saxony), southeast of the city of Soltau. What started out as a hobby ultimately became a business. Since then, the main goal has been the preparation of fish eggs, caviar (roe). The female trout are brought up in concrete semi-circulating basins and slaughtered after 26 to 29 months as salmon trout. The annual ...

  • Scientists say feeding fish soy, not fish, more sustainable

    Research supported by the soybean industry is looking to convert some farm-raised fish into vegetarians. A South Dakota State University fisheries scientist is developing a soy protein feed that's tasty and easily digestible to eventually reduce the industry's need for using wild-caught fish as food for farm-raised fish. Much of the tilapia, Atlantic salmon and catfish that Americans toss into ...


    By Associated Press

  • Hormones in wastewater disrupt fish reproduction over generations

    Synthetic oestrogens in wastewater from contraceptive pills can have effects on fish reproduction and survival that worsen over several generations, new research has found. The study suggests that some fish populations may not be able to recover from levels of oestrogen pollution found in many freshwater environments. Freshwater ecosystems are increasingly under threat from both climate change ...

  • Fishing boat wastewater shown to be potentially harmful

    Wastewater emptied from commercial fishing boats is an overlooked source of marine pollution, a new US study shows. The researchers suggest that this type of pollution should be given further consideration when assessing the overall environmental impact of fishing, as it may pose a risk to human health and marine life. Life-cycle assessments that analyse the environmental impacts of ...


    By European Commission

  • Tighter controls rejected on Pacific tuna fishing

    Pacific island nations and conservation groups have failed to persuade the body that oversees tuna fishing in the Pacific to introduce more stringent measures to protect tuna supply. Negotiations broke down at a meeting in Guam last month (March 26-30) of the Western and Central Pacific Fisheries Commission (WCPFC), as Pacific island nations – backed by Australia – failed to reach ...


    By SciDev.Net

  • OSHA cites US Fish and Wildlife Service for serious, repeated violations at Pendills Creek National Fish Hatchery

    U.S. Fish and Wildlife Service employees at Pendills Creek National Fish Hatchery faced atmospheric, water, amputation and asbestos hazards while working in tanks and pits, a recent federal safety and health investigation found. U.S. Department of Labor Occupational Safety and Health Administration inspectors determined that the Fish and Wildlife Service, an agency of the ...

  • Spain criticized for towing burning fishing boat out to sea

    Greenpeace on Thursday criticized Spain's government for towing a burning Russian fishing boat full of fuel out to sea after it caught fire in a Canary Islands port, saying the fuel oil in the ship that ended up sinking poses an environmental threat. The group demanded that Spain make plans to extract about 1,400 metric tons of thick fuel oil ...


    By Associated Press

  • Primozone gets repeat sales of unique and cost-efficient ozone generation solution for Bell Aquaculture’s sustainable fish farm in IN, USA.

    Swedish ozone generator supplier Primozone has been selected to, for the second time, provide an ozone generator solution for Bell Aquaculture who is the largest yellow perch aquaculture facility in the US. Bell Aquaculture is a sustainable fish farmer operating in Albany, IN and who is expanding its production with 3 million more fish per year to meet the growing demand. Bell Aquaculture ...


    By Primozone Production AB

  • The Aquarama Jigsaw Takes Shape

    As the pace towards Aquarama 2013 steadily quickens, the various pieces of the complex jigsaw are beginning to fall into place. Two key components of what promises to be a fascinating and all-embracing programme are ...


    By UBM Built Environment

  • Freshwater Institute helps protect and restore healthy populations of Salmon

    “We have to keep finding new ways to increase the supply of healthy seafood,” said Joe Hankins, vice president at The Conservation Fund. “Because we continuously filter and clean the water in our tanks, our fish are healthy, and we’ve never had to use antibiotics, pesticides or other treatments to keep them that way. With the new water quality monitoring equipment and ...


    By YSI - a Xylem brand

  • Herring organs damaged by acidified seawater

    Ocean acidification could damage the organs of Atlantic herring, as well as slow their growth and development, recent experiments show. It adds to the list of pressures currently threatening this commercially important species, including over-fishing and marine pollution. Our oceans are changing as high levels of atmospheric CO2 dissolve into seawater and lower its pH to become more acidic. The ...

  • Much-in-demand common sole can now be reproduced all year round

    Common sole in the North Sea only spawns in April and May. Because the next generation of this much-in-demand fish cannot be reproduced well in captivity, it cannot be raised profitably in fish farms. However, researchers at IMARES Wageningen UR managed to select the conditions for farm-raised sole in such a way that the fish started reproducing even outside the season. By selecting the right ...

  • Primozone supplies super-efficient ozone generator for European project improving ozone technology at aquaculture applications

    Primozone is one of four equipment suppliers for a European project for improving the efficiency and safety of ozone use in the management of water quality in the aquaculture sector including Recirculation Aquaculture Systems (RAS). Ozone has a number of advantages when it comes to improving water quality at RAS. At land based fish farms, where fish is raised in tanks, there is often a ...


    By Primozone Production AB

  • Nepal sees potential in aquaponics

    Nepal sees food security potential in aquaponics, a combination of aquaculture and hydroponics. Aquaculture efficiently ...


    By SciDev.Net

  • Floating vegetative mats may help clean fishery wastewater

    The feasibility of using floating vegetation to remove nutrients from fishery wastewater is being tested by Agricultural Research Service (ARS) scientists. The researchers' long-term goal is to develop a system to treat the wastewater, return it to ponds for reuse, and use the nutrients to produce biomass or plant material. The floating mats act as filters to remove the nutrients from the water. ...

  • Weeding out of water invaders

    Defra and the Scottish Government today (Wednesday 24 February) called on Britain’s gardeners to help stop the spread of invasive aquatic plants that damage the natural environment and cost the economy millions with a new campaign to highlight the plight of Britain’s waterways. The Be Plant Wise campaign highlights five of the worst offenders currently wreaking havoc on our wildlife and ...


  • New Species Recovery Credits Intended to Offset Harm

    The U.S. Fish and Wildlife Service is seeking public comment on a new program designed to help federal agencies conserve imperiled species on non-federal lands while allowing them to suffer harm on federal lands. The recovery crediting system gives federal agencies flexibility to offset the impact of their actions on threatened and endangered species on federal lands by undertaking conservation ...

  • World`s environment ministers meet to mobilize global green economy

    A green economy is emerging worldwide as growing numbers of companies embrace environmental policies and investors pump hundreds of billions into clean technology and renewable energies, finds the 2008 United Nations Environment Programme Year Book.  The Year Book was presented here today at the opening of the largest gathering of environment ministers since the UN climate conference in ...

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