Flow-MER Fish Age

Age of individual fish collected as part of the Commonwealth Environmental Water Holder (CEWH) Flow-MER program in the Murray-Darling Basin.\r\n\r\nAbundance and diversity of riverine fish populations are monitored annually at fixed sites within six Selected Areas using a standardised sampling regime involving boat or backpack electrofishing and fine mesh fyke nets (referred to as Category 1 sampling). These methods target large-bodied and small-bodied fish species respectively. A sample of measured individuals (length and weight) were collected for otolith sectioning and age determination to construct age vs length and weight relationships.\r\n\r\nThe CEWH’s Flow-MER program examines the contribution of Commonwealth environmental water to the environmental objectives of the Basin Plan 2012 (Basin Plan) and is assisting the CEWH to demonstrate environmental outcomes and adaptively manage the water holdings. Monitoring and evaluation is focused in seven Selected Areas: the Junction of the Warrego and Darling rivers, Gwydir river system, Lachlan river system, Murrumbidgee river system, Edward/Kolety-Wakool river system, Goulburn River and Lower Murray River. \r\n\r\nThis Flow-MER data set includes and extends the long-term data collected at the same sites during the Long Term Intervention Monitoring (LTIM) project (2014-2019).\r\n\r\n###Acknowledgement\r\n\r\nThe Commonwealth Environmental Water Holder and Flow-MER program acknowledge the First Nations peoples as the Traditional Owners and Custodians of the lands, waterways and skies of the Murray-Darling Basin. We respect their continuing connection to culture and Country, and we thank them for their knowledge and science and the values reflected in these data.\r\n\r\n###Citation\r\n\r\nCEWH (2024) Fish Age. Flow-MER Program. Commonwealth Environmental Water Holder, Australian Government Department of Climate Change, Energy, the Environment and Water. Sourced from https://data.gov.au/data/dataset/flow-mer-fish-age on [date-sourced].

作为联邦环境水管理局（Commonwealth Environmental Water Holder, CEWH）墨累-达令盆地Flow-MER项目的一部分，所采集的个体鱼类年龄数据。

在六个选定区域内的固定站点，每年采用标准化采样方案监测河流鱼类种群的丰度与多样性，该方案包括船载或背包式电捕鱼法以及细网目鱼梁网（称为1类采样）。这些方法分别针对大体型和小体型鱼类物种。采集了一批已测量个体（长度和重量）进行耳石切片和年龄测定，以构建年龄与长度、重量的关系模型。

CEWH的Flow-MER项目旨在研究联邦环境水对《2012年盆地计划》环境目标的贡献，并协助CEWH展示环境成果及适应性管理水资源持有量。监测与评估工作集中于七个选定区域：Warrego与Darling河交汇处、Gwydir河系统、Lachlan河系统、Murrumbidgee河系统、Edward/Kolety-Wakool河系统、Goulburn河以及墨累河下游。

本Flow-MER数据集包含并扩展了2014-2019年长期干预监测（Long Term Intervention Monitoring, LTIM）项目期间在相同站点采集的长期数据。

###致谢

联邦环境水管理局及Flow-MER项目认可原住民是墨累-达令盆地土地、水道及天空的传统所有者和守护者。我们尊重他们与文化及Country持续的联系，并感谢他们的知识、科学以及这些数据中所体现的价值观。

###引用

CEWH（2024）鱼类年龄。Flow-MER项目。联邦环境水管理局，澳大利亚政府气候变化、能源、环境与水利部。数据源：https://data.gov.au/data/dataset/flow-mer-fish-age，获取日期：[date-sourced]。