Annual record of particle fluxes, geochemistry and diatoms in Effingham Inlet, British Columbia, Canada, and the impact of the 1999 La Niña event

► Only sediment trap study done in a western Canadian inlet facing the open Pacific ► Deposition of settling particles is clearly seasonal. ► Deposition of settling particles is also influenced by the 1999 La Niña event. ► 1999 La Niña had a strong oceanographic and biological effect on the coast. ► Sediment trap data can be used as benchmarks recording anomalous climatic events.