76,282 research outputs found

    The scope for biomanipulation in improving water quality

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    Biomanipulation is a form of biological engineering in which organisms are selectively removed or encouraged to alleviate the symptoms of eutrophication. Most examples involve fish and grazer zooplankton though mussels have also been used. The technique involves continuous management in many deeper lakes and is not a substitute for nutrient control. In some lakes, alterations to the lake environment have given longer-term positive effects. And in some shallow lakes, biomanipulation may be essential, alongside nutrient control, in re- establishing former aquatic-plant-dominated ecosystems which have been lost through severe eutrophication. The emergence of biomanipulation techniques emphasises that lake systems are not simply chemical reactors which respond simply to engineered chemical changes, but very complex and still very imperfectly understood ecosystems which require a yet profounder understanding before they can be restored with certainty

    The Making of Faulty Optic's Dead Wedding: Inertia, Chaos and Adaptation

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    An examination of Faulty Optic's creative process during the devising and construction of their show Dead Wedding. Published by Palgrave Macmillan as Chapter 3 in 'Devising in Process' edited by Alex Mermikides and Jackie Smart, 201

    Boarding the school bus

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    EVERY DAY DURING THE SCHOOL TERM, several thousand buses travel along country roads once marked with distinctive dark yellow bus route signs (now fluorescent green), carrying more than 100,000 pupils to school in the morning and returning them home again in the late afternoon,' Since their inception more than 80 years ago, school buses have changed the educational and social landscapes of rural New Zealand. As with many innovations in education, the service was initiated largely in an effort to save money; part of a process referred to as school consolidation. Before the first buses rolled down the driveway of the first consolidated school at Piopio in the South Waikato on 1 April 1924. the merits of consolidation had been debated in educational and community circles for nearly a decade. Its implementation would bring enormous change to the lives of rural children and their experience of school

    Review essay : Researching children\u27s perspectives : a book review textualised by Liam\u27s sorting drawing

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    Report on eight weeks at the Fisheries Department of the Lancashire River Authority [including a Leeds / Liverpool Canal survey]

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    This report looks at the interests of the Fisheries Department for the Lancashire River Board, focusing on the Liverpool and Leeds Canal Survey. It looks at finding parasites in fish from an electrofishing survey (roach and perch). This was to contribute towards the main survey with a possible view to suggesting whether or not the parasites were one reason for the poor fish population. Methods of finding parasites are given, and results of what parasites that were found in the fish are discussed
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