Suggestions for a feasible and simple ecosystem indicator of sea turtles and available data

With regard to the indicator for sea turtle bycatch in the Ecosystem Report Card, the SC-ECO has been discussing the method of creating the indicator, but currently there is no consensus on the indicator values. Therefore, this document attempts to organize the conditions necessary for an appropriate sea turtle indicator and the data necessary for the development of the indicator in order to facilitate the discussion. The most important thing is to be clear on the targets of the indicators you will be updating on an ongoing basis―how can the pressure of fishing on the sea turtle population be measured? Since many CPCs are regularly involved in the calculation of indicators, it is desirable to use data that is as simple as possible and does not require additional data collection efforts to calculate indicators. The document presents and discusses candidate management targets targeted by the sea turtle indicator and the data currently available.