fish eggs 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 ...

  • 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 ...

  • Ohio State Offers Aquaponics Fish Farming Workshop July 10-11

    An innovative aquaculture program offered by the College of Food, Agricultural, and Environmental Sciences at The Ohio State University will hold a workshop July 10-11 to provide an in-depth look at the increasingly popular fish farming industry. Held at the Ohio Center for Aquaculture Research and Development at Ohio State University South Centers in Piketon, the workshop will offer current and ...


    By Ohio State University

  • Aquaculture Water Quality Workshop Offers Tips to Boost Profitability of Fish Farming

    Healthy water leads to healthy fish and increases the potential for healthy profits for fish farmers. On the other hand, poor water quality can lead to stressed fish, increasing the chance for the animals’ illness and death, and resulting in income losses for farmers, says Matthew Smith, an Ohio State University Extension aquaculture specialist. Water quality management for fish farmers is ...


    By Ohio State University

  • Sting operation - jellyfish `blooms` may endanger fish stocks

    Surges in jellyfish populations may be one reason for a drop in fish stocks observed in the Mediterranean and Black Sea, according to a new report published by FAO. Overfishing, which removes top predators from the sea, is one of the factors behind jellyfish "blooms", or suddenly increased numbers. A "vicious circle" can then follow in which large numbers of medusae feed on fish larvae and ...

  • Salmon Watch: Fish crime crackdown aims to protect Solent salmon stocks

    The Environment Agency is launching a new initiative to protect Solent salmon stocks and is calling on the public and businesses to help play a major role in safeguarding their future. The new Salmon Watch campaign is part of the Environment Agency’s ongoing crackdown against fish theft and illegal angling. Since a previous anti-poaching campaign was launched across Hampshire in October ...

  • Knowledge of spatial dynamics is critical when determining harvest strategies for fish in meta-populations

    New research published in the Marine Stewardship Council’s Science Series highlights the importance of understanding spatial structure and connectivity of meta-population fish stocks when assessing the sustainability of fisheries. Unlike many self-sustaining ‘closed’ populations, meta-populations are interconnected networks encompassing a number of distinct sub-populations that ...

  • Ohio State Aquaculture Research Program Looking to Recruit New or Beginning Fish Farmers

    An innovative program offered by the Ohio State University’s College of Food, Agricultural, and Environmental Sciences is looking to recruit, mentor and grow a new crop of fish farmers. The Ohio Center for Aquaculture Research and Development at the Ohio State University South Centers is offering 25 new and beginning fish farmers a hands-on approach to aquaculture and the business of fish ...


    By Ohio State University

  • Pesticides may affect all stages of aquatic life

    Ecotoxicity tests that are used to understand the impacts of chemical pollutants on aquatic organisms and ecosystems could be improved by including all life stages of the test animals. These are the conclusions of a study by Belgian researchers, who found that the apparent absorption of some pesticides by the dormant eggs of water fleas may have negative effects on the invertebrates’ later ...

  • Applied Plasma Physics AS (APP) exhibiting at VIV Asia, Bangkok, Thailand.

    Applied Plasma Physics AS (APP) will be exhibiting at VIV Asia, Bangkok, Thailand between March 13th-15th, 2013. We look forward to meeting you in Hall 104, Booth D086.  About VIV Asia Professionals in animal production and processing of meat, eggs fish and milk with healthy growth ambitions will all head to Bangkok for the 11th edition of VIV Asia. No other trade ...


    By Schenck Process Germany

  • Salmon and sea trout close season on Hampshire rivers starts today

    The Environment Agency is reminding anglers that today (Thursday 31 October) sees the start of the close season for salmon and sea trout fishing in Hampshire. This means that rivers such as the Lymington, Meon, Test and Itchen will close to anglers who traditionally fish for either of these species. The fishing season for salmon runs from 17 January until 2 October and the season for Sea Trout ...

  • Jellyfish infestations caused by human activities

    A huge rise in jellyfish populations around the world appears to be caused by human activities, according to recent research. Early action is essential to prevent marine ecosystems from changing to unhealthy states that favour destructive jellyfish blooms. Although large numbers of jellyfish can occur in healthy marine ecosystems, destructive jellyfish blooms are being observed more frequently in ...

  • Increased oestrogen pollution in European rivers could affect development of brown trout

    Brown trout (Salmo trutta) embryos exposed to oestrogen during development hatched earlier, grew more slowly and had a lower heart rate than unexposed individuals, according to a recent Swiss study. These findings may indicate that oestrogen pollution in some European rivers is contributing to the decline of wild populations of such species. Endocrine disrupting compounds (EDCs) affect ...

  • 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 ...

  • Technology Revolutionizing Chilean Aquaculture on View at Watec

    Atlantium Technologies Ltd., global leader in UV water disinfection solutions, today announced that attendees at Watec in Tel Aviv will be able to view the RZ300 – the disinfection system that uses light to protect against IPN – at booth #24, Hall 1. Atlantium, following the Watec ‘11 theme of innovation, will demonstrate how its unique UV technology ...


    By Atlantium Ltd.

  • Maps reveal secret life of marine turtles in urgent need of protection

    A series of conservation maps produced by WWF reveal for the first time the secret life of endangered turtles in the world’s most diverse marine region – the Coral Triangle. The maps are the first to bring together the different life cycle movements, migration routes, foraging grounds, and nesting sites of green, hawksbill and leatherback turtles. The maps were produced with the help of satellite ...


    By WWF International

  • People want to buy healthy, local food, survey shows

    Seven in every ten people say that buying sustainable fish is important, but only 30 per cent say that they buy sustainable fish, because a third of people aren’t sure how to choose sustainable fish products and are confused by labelling, according to research published by Defra today. The figures show the need for retailers and producers to make sure labels are clear and effective, ...

  • Surrogate sushi: Japan biotech for bluefin tuna

    Of all the overfished fish in the seas, luscious, fatty bluefin tuna are among the most threatened. Marine scientist Goro Yamazaki, who is known in this seaside community as "Young Mr. Fish," is working to ensure the species survives. Yamazaki is fine-tuning a technology to use mackerel surrogates to spawn the bluefin, a process he hopes will enable fisheries to raise the huge, torpedo-shaped ...


    By Associated Press

  • U.S. Government to spend $3.2 million to help monarch butterfly

    The federal government on Monday pledged $3.2 million to help save the monarch butterfly, the iconic orange-and-black butterfly that can migrate thousands of miles between the U.S. and Mexico each year. In recent years, the species has experienced a 90 percent decline in population, with the lowest recorded population occurring in 2013-2014. About $2 million will restore more than 200,000 acres ...


    By Associated Press

  • Loblaws will ban microbeads from its products

    As the latest announcement in its ongoing journey to improve consumer products through its private brands, Loblaw Companies Limited (TSX:L) has committed that by the end of 2018. Life Brand® and President’s Choice® household, beauty and cosmetic products will no longer be formulated using Triclosan, phthalates or micro beads. ”Emerging science and public opinion suggest a ...


    By GLOBE Foundation

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