AAP Project 4501: Mapping, predicting and monitoring ecological change in the Southern Ocean - HIMI Demersal Fish

The demersal fish assemblages on the Kerguelen Plateau has changed through time. This study aimed to detect, quantify, and map these changes. This study uses existing data collected from the Random Stratified Trawl Survey (RSTS) program administered through the Australian Antarctic Divisions (AAD). Raw RSTS data between 2000 and 2016 was extracted from the AAD database. The RSTS data contains information on the abundance (catch per unit effort, CPUE) on fish. RSTS data were paired with environmental data to be modelled. Hierarchical models of species communities (HMSC) were used to make inferences and predictions in the changes of demersal fish distribution. This record contains all the environmental data, R code, and outputs from this project. Raw RSTS data needs to be requested from the AAD under the authorization of AFMA.

克尔格伦高原的底层鱼类群落随时间发生了变化。本研究旨在检测、量化并绘制这些变化的分布图。本研究使用的现有数据来自澳大利亚南极局（Australian Antarctic Division，AAD）管理的随机分层拖网调查（Random Stratified Trawl Survey，RSTS）项目。2000年至2016年的原始RSTS数据从AAD数据库中提取。RSTS数据包含鱼类丰度（单位捕捞努力量渔获量，catch per unit effort，CPUE）的信息。RSTS数据与环境数据配对以进行建模。物种群落分层模型（Hierarchical models of species communities，HMSC）被用于对底层鱼类分布变化进行推断和预测。本记录包含该项目的所有环境数据、R代码和输出结果。原始RSTS数据需在澳大利亚渔业管理局（Australian Fisheries Management Authority，AFMA）授权下向AAD申请获取。