Mg-isotopic fractionation in the manila clam (Ruditapes philippinarum): New insights into Mg incorporation pathway and calcification process of bivalves

Regarding the large physiological effects, the δ26Mg record in the Manila clam shell offers limited potential as a proxy of temperature or seawater Mg isotopic composition. In contrast, the sensitivity of its δ26Mg to the salinity regime may offer an interesting tool to track changes in clam biological activity in estuarine environments.