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Proactive approach proved key to survival for the Australasian Pacific oyster industry









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    Booklet
    Proactive approach proved key to survival for the Australian Pacific oyster industry
    Genetics in aquaculture: a case studies
    2023
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    The global Pacific oyster aquaculture sector is plagued by a disease caused by the Ostreid herpesvirus, known in some countries as Pacific oyster mortality syndrome (POMS). POMS first arrived in Australasia in 2010 and caused massive mortalities, especially of young oysters, sometimes bringing about close to 100 percent mortality. At that time the Pacific oyster industries in Australia and New Zealand had already initiated genetic breeding programmes for commercially important growth-related traits. As POMS arrived in the region and started to spread throughout the two countries, these breeding programmes were able to pivot to breeding for POMS resistance, which turned out to be a highly heritable trait and responded very well to selection such that by 2018, selected oysters had average survival rates of around 80 percent during POMS outbreaks. This case study traces the development of oyster breeding programmes in Australia and New Zealand and describes how the industry sectors were able to respond quickly to the new and immediate threat of POMS and how the existence of ongoing breeding programmes, supported by both public and private sector, was critical to saving the industry from being completely decimated by POMS and how the breeding programmes enabled relatively rapid recovery from POMS-related losses. The study identifies the critical role of public–private partnership in the success of the breeding programmes and identifies some of the funding mechanisms that ensured ongoing success of these programmes.
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    Book (series)
    Case studies on the effects of transferable fishing rights on fleet capacity and concentration of quota ownership 2001
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    This report describes how the introduction of transferable fishing (effort) or fish (catch) quotas has affected the capacity of the fleet prosecuting the target fishery for which the harvesting rights apply. It consists of 16 national, or national fishery, studies, describes how the introduction of transferable fishing (effort) or fish (catch) quotas has affected the capacity of the fleet prosecuting the target fishery for which the harvesting rights apply. The case studies include two fro m the European Union (the U.K. and the Netherlands) and for Iceland. Two studies are presented for fisheries along the eastern seaboard of the United States Seven accounts are included from Australia, two of which describe fisheries managed by the Commonwealth Government through the Australian Offshore Constitutional Settlement (the Northern Prawn Fishery and the fishery for southern bluefin tuna). The other five accounts of Australian experiences describe the (unique?) Pilbara Trap Fishery in the northern region of Western Australia, Western Australia’s rock lobster fishery and the fishery for the same species and that for abalone and pilchards in South Australia. In Tasmania an account is given for the rock lobster fishery while for New South Wales, a description is given for another invertebrate fishery, that for abalone. An omnibus account is given for the situation in New Zealand. In the Western Pacific, accounts are given for the Pacific Halibut and Sablefish fisheries in Ala ska, the marine trawl fisheries of British Columbia and Chile's Patagonian toothfish fishery.
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    Book (series)
    Pacific oyster farming
    A practical manual
    2024
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    The purpose of this manual is to give the reader a foundation of practical knowledge regarding all aspects of Pacific oyster cultivation. It is targeted at new entrants to the market wishing to establish a farm, and existing operators who wish to develop their farms and explore new cultivation techniques. The methodologies described can be applied both to low-tech, low budget, small-scale farming operations and to high-tech, big budget, industrial-scale aquaculture production enterprises. This guide focuses on the functional expertise and technical equipment required to construct and manage an operational farm in the diverse environmental and physical locations in which they can be situated, from the initial stages of finding and selecting a suitable site, to the conclusion of the first production cycle and harvesting the crop. The manual contains a brief introduction which describes the relevance of the species with regards to global aquaculture production figures and how it can form an important part of future food production strategies. Chapter 2 describes the anatomy and biology of Crassostrea gigas and gives an indication as to the environmental conditions in which the species thrives as well as the pathologies and predators that can result in poor health leading to potential mortalities. Chapter 3 deals with all aspects of undertaking a survey of potential oyster farming sites and what data should be collected and examined to assess a site’s suitability, but also which areas are best suited to different cultivation techniques. After this, Chapter 4 introduces the main farming techniques that will be described in detail in the following chapters, which includes off-bottom cultivation, on-bottom cultivation, and suspended cultivation, and gives details of some of the most common cultivation equipment necessary to undertake these operations. The techniques and strategies necessary to procure seed oysters and how to develop them through the nursery stage are also introduced. This includes the basic principles of upwelling, which then leads into Chapter 5, which provides a detailed description of how to build and operate one particular example of a Floating Upwelling System (Flupsy) which is suitable for use in remote but sheltered conditions. Chapters 6, 7 and 8 constitute the main body of the manual and provide an in-depth look into the three major cultivation techniques that this guide concentrates on: “Farming with trestles and bags in the intertidal zone”, “On-bottom cultivation in the intertidal or subtidal zone” and “Offshore longline cultivation”.

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