fish counting system Articles

  • Setting up a composting system at school

    THE Portland, Oregon metropolitan area generates an estimated 280,000 tons per year of organic residuals — comprised of plants, food and food-soiled paper. To reclaim this material, the Portland Office of Sustainable Development launched the “Portland Composts” program. Since its inception in 2005, Portland Composts has recruited over 250 participants and this year will capture a projected 12,000 ...


    By BioCycle Magazine

  • Effects of anionic polyacrylamide products on gill histopathology in juvenile rainbow trout (Oncorhynchus mykiss)

    Anionic polyacrylamide (PAM) products are commonly used to remove suspended materials from turbid waters and to help mitigate soil erosion. In the present study, juvenile rainbow trout (Oncorhynchus mykiss) were exposed to between 3 to 300 mg/L of ten commercially available PAMS (Clearflow Water Lynx Polymer Log and Clearflow Soil Lynx Granular Polymer; Clearflow Enviro Systems Group Inc.) and ...


    By John Wiley & Sons, Ltd.

  • Creating a Sustainable Food Future: Interim Findings - A menu of solutions to sustainably feed more than 9 billion people by 2050

    The world’s agricultural system faces a great balancing act. To meet different human needs, by 2050 it must simultaneously produce far more food for a population expected to reach about 9.6 billion, provide economic opportunities for the hundreds of millions of rural poor who depend on agriculture for their livelihoods, and reduce environmental impacts, including ecosystem degradation and ...

  • Let the kids go wild outdoors

    A number of international studies have shown that children in developed nations spend an average of 55 hours a week indoors using electronics. Even though this means that the youth in these countries are techno-savvy, it often results in them spending less and less time outdoors. How do we change this, and get our kids to experience the wonders of nature, develop creativity and learn to ...


    By green24

  • Urban farming is booming, but what does it really yield?

    City-based agriculture produces 15 to 20 percent of food globally. In the U.S., its benefits go far beyond nutrition. This story was produced in collaboration with the Food & Environment Reporting Network, a non-profit investigative news organization. ...


    By Ensia

  • Focus on Australia & New Zealand: Composting Developments In Australia And New Zealand

     Composting Developments In Australia And New Zealand An Emerging Industry Takes Shape To deal with the waste stream in Australia and New Zealand, all strategies refer to organics recycling as a “fundamental vehicle for reaching future waste reduction targets,” notes Edmund Horan of RMIT University in Melbourne. “Composting provides a mechanism, not only for ...


    By BioCycle Magazine

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