This Toolkit offers a suite of simple tools for collecting the sound scientific data needed for the conservation and sustainable management of shark and ray populations. The kit has been designed for use in regions with limited capacity and resources, and it contains practical step-by-step guidelines for collecting data by a range of methods. Appropriate tools can be selected depending on the particular data gaps relevant to local waters. The data collected will give a baseline for studying future trends in shark and ray populations, so fisheries authorities can address areas of particular concern and determine the effectiveness of their management efforts.