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Individual Transferable Effort: A Fishery Management Tool for Achieving Sustainability and Conservation Objectives

机译:个人可转让努力:实现可持续性和保护目标的渔业管理工具

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Individual transferable effort (ITE) management regimes have recently been utilized in a number of Australian fisheries. They differ from other input controls (typically fixed or variable levels of gear usage in a fixed season) by limiting the amountof time that a vessel can access a fishery resource, but without the need for fixed seasonal controls. However, they can also be teamed with measures of gear usage to provide a time-gear form of control. Individual transferable efforts are managed through a vessel monitoring system (VMS), which records the period of time that a vessel is in the waters of a fishery and allows for flexibility in usage of the access entitlement. Individual transferable efforts have a number of characteristics which producemore satisfactory outcomes for sustainability and conservation—particularly in multispecies fisheries. Access levels can be based on the exploitation rates of the more vulnerable species in the catch, ensuring that "at-risk" species are not overexploited. This avoids some of the traditional risks of ITQ systems, such as high grading and trashing of exhausted-quota species in the pursuit of species which have not reached quota limits. Individual transferable efforts also have the advantage that they are more likely to respond naturally to variations in stock abundance, unlike fixed quotas which can result in the quota being taken irrespective of the stock abundance. They are also more flexible than management systems which specify a particular gear allowance within a fixed season. However, because levels of access are based on "at risk" species, they can result in the total productivity of the fishery being underexploited. Also, as an input control, ITEs suffer from some of the ills of other input controls, such as overinvestment in equipment ("capital stuffing").
机译:个人可转让的努力(ITE)管理制度最近被利用在澳大利亚渔业中。它们通过限制船舶可以访问渔业资源的时间,但不需要固定季节性控制,它们与其他输入控制(通常在固定季节的齿轮使用水平的齿轮使用水平)不同。但是,它们也可以与齿轮使用措施合作,以提供时间齿轮的控制形式。通过船舶监测系统(VMS)管理各个可转让努力,该系统记录了船舶在渔业的水域中的时间段,并允许灵活地使用访问权利。个人可转让努力具有许多特征,这些特征是可持续性和保护的令人满意的成果 - 特别是在多数渔业中。访问级别可以基于捕获中更脆弱的物种的开发率,确保“风险”种类不过度释放。这避免了一些传统的ITQ系统风险,例如在追求尚未达到配额限制的物种中的耗尽配额种类的高分度和垃圾。个人可转让的努力也有优势,它们更有可能自然地响应储蓄丰富的变化,与固定配额不同,这可能导致股票丰富而导致配额。它们也比管理系统更灵活,在固定季节内指定特定的齿轮津贴。但是,由于访问水平基于“风险”种类,因此它们可能导致渔业的总生产率是潜在的。此外,作为输入控制,ITES患有其他输入控制的一些弊病,例如设备中的过度投资(“资本填充”)。

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