NESP MaC Project 3.11 - Multi- fishery collaboration to assess population abundances and post release survival of threatened sawfish in northern Australia, 2023-2026 (CSIRO, CDU)

本记录概述了国家环境保护计划海洋和沿海中心研究--项目3.11--评估澳大利亚北部受威胁锯鱼种群丰度和放生后生存的多种渔业合作。有关此项目的特定数据输出，请参阅与此元数据关联的子记录。<br/> <br/> 为了改进锯鱼报告，并获得锯鱼丰度和种群结构的估计，工业、州和联邦机构以及主要研究机构之间提出了一个大规模合作项目，以收集整个澳大利亚北部的组织样本。该项目将侧重于发展研究与商业捕鱼业之间的信任，以实现以下目标：<br/> <br/> -行业主导的报告和抽样计划将在整个澳大利亚北部渔业地区建立。<br/> -组织样本将用于评估锯鱼丰度和种群结构，使用近亲标记-重新捕获(CKMR)。<br/> -将通过卫星标记和改进报告来估计释放后的存活率。<br/> -将使用关于丰度和放生后存活的数据来评估锯鱼副渔获物的可持续性。<br/> <br/> 这项研究还旨在改善对澳大利亚北部渔业中锯鱼和其他EPBC名录物种的报告。如果收集了足够的组织样本，重新捕获近亲标记将能够估计四种锯鱼的成年种群数量。放生后的存活率和丰度估计将用于确定作为副渔获物在州、领地和英联邦渔业捕获的锯鱼的可持续性。改进对副渔获量、种群连通性、成鱼丰度和放生后存活率的估计被确定为锯鱼和河鲨多物种恢复计划的最高研究优先事项。<br/> <br/> 在澳大利亚境内，根据EPBC法案，四个正在发生的物种中有三个被列为脆弱和迁徙物种(Pristis Pristis、P.zijsron和P.clavata)。澳大利亚的第四种狭长锯鱼(Anoxyprtis Cupidata)被列为迁徙物种。根据EPBC法案，A.cupidata和P.Pristis目前都被提名为濒危物种。淡水锯鱼Pristis Pristis也被列入濒危物种战略--100个优先鱼类物种。<br/> <br/> 计划产量<br/> ·锯鱼渔获量数据[空间数据集]<br/> ·组织样本和测序数据<br/> ·最后一份技术报告，包括分析的数据和对关键发现向政策制定者提出的建议的简短摘要[书面]

This record provides an overview of the NESP Marine and Coastal Hub study - Project 3.11 - Multi- fishery collaboration to assess population abundances and post release survival of threatened sawfish in northern Australia. For specific data outputs from this project, please see child records associated with this metadata.<br /> <br /> To improve sawfish reporting and obtain an estimate of sawfish abundance and stock structure, a large-scale collaborative project is proposed between industry, State and Commonwealth agencies and lead research institutions to gather tissue samples from across northern Australia. The project will have a focus on developing trust between research and the commercial fishing industry that will achieve the following:<br /> <br /> - Industry led reporting and sampling programs will be established throughout Australia’s northern fisheries. <br /> - Tissue samples will be used to assess sawfish abundance and stock structure using Close-Kin Mark-Recapture (CKMR). <br /> - Estimates of post-release survival will be obtained from satellite tagging and improved reporting. <br /> - Data on abundance and post release survival will be used to assess the sustainability of sawfish bycatch. <br /> <br /> The research also aims to improve reporting of sawfish along with other EPBC listed species in northern Australian fisheries. If enough tissue samples are collected, close kin mark recapture will enable estimates of adult population size for four species of sawfish. Post release survival and abundance estimates will be used to determine the sustainability of sawfish captured as bycatch in state, territory and Commonwealth Fisheries. Improved estimates of bycatch, population connectivity, adult abundance and post release survival were identified as the highest research priorities in the Sawfish and River Shark multispecies recovery plan. <br /> <br /> Within Australia, three out of the four occurring species are listed as Vulnerable and Migratory under the EPBC act (Pristis pristis, P. zijsron and P. clavata). The fourth Australian species, narrow sawfish (Anoxypristis cuspidata) is listed as a Migratory species. Both A. cuspidata and P. pristis are currently under nomination to be up-listed to Endangered under the EPBC act. The Freshwater Sawfish Pristis pristis is also listed in the Threatened Species Strategy - 100 priority species for fish. <br /> <br /> Planned Outputs<br /> • Sawfish catch data [spatial dataset]<br /> • Tissue samples and sequencing data <br /> • Final technical report with analysed data and a short summary of recommendations for policy makers of key findings [written]