Évaluation 2025 du stock de crevettes Peneides de Guyane

This report presents the 2025 assessment of the penaeid shrimp stock exploited in French Guiana. It is set against a backdrop of a historically sharp decline in catches and fishing effort, with a now greatly  reduced fleet and a TAC that is significantly higher than actual catches, rendering it ineffective and non-precautionary. Analyses show that the fishery primarily targets a cryptic species, Penaeus isabelae, long confused with P. subtilis, which complicates the biological assessment of the stock. Available data (catches, effort, CPUE, sizes, spatial information) indicate a recent decline in apparent abundance and a concentration of fishing effort in restricted areas of the Guiana Shelf. Several assessment methods adapted to short-life-cycle stocks with limited data have been tested. The analytical model suggests a stock that is generally in good condition but with very high uncertainties, while more conservative approaches recommend catch levels significantly lower than the current TAC. The overall results highlight that current management is not suited to the biological characteristics and available data for this fishery. The report concludes that there is a need to adopt simpler management rules based on recent indicators, and to strengthen data collection through regular surveys and improved monitoring of the fishery. These improvements are essential to reduce uncertainty. This english version is an automated translation of the original report in French. Not all figures have been translated.