CTD Data for the 2022 COR2212 Cruise in the Saint-Lawrence Estuary

The objective of mission COR2212 (id: 2022_26) is to monitor natural risks during sediment remobilization and impacts on primary production dynamics in the St. Lawrence Estuary.

As part of this mission, vertical CTD (conductivity, temperature, depth) profiles were taken in several areas between Forestville and Pointes-des-Monts (St-Lawrence Estuary). The CTD was also equipped with sensors to measure dissolved oxygen, fluorescence (chl-a), and water clarity in the water column.

In addition, surface sediment samples and sediment cores were taken (mainly using a box corer) to determine the sources of the main terrigenous inputs into the estuary, to determine the concentrations of major and trace elements in surface sediments, to document the recurrence of turbidity currents over the last millennium, and to map the distribution of A. catenella in sediments.

In addition, samples were taken using a plankton net to determine the abundance and spatial variability of harmful algae (A. catenella).

This dataset is part of the EDMS-ISMER-QO collection