Background • The temperature of the cold intermediate The waters of the Gulf of St. [...] In the 100-200 m stocks of the Gulf of St. [...] Summary • Dissolved oxygen saturation in the 200- 300 m layer in 1997 was normal at the • Air temperatures over the Gulf were Cabot Strait hydrographic section, but warmer than normal at the beginning of was 3 % below normal at the Honguedo the 1996-1997 winter, but then dropped Strait section. [...] The RIVSUM index is defined as Freshwater discharge the sum of the freshwater flows of the St. [...] Lawrence river at the Cornwall dam, the The index we use to represent the freshwater Ottawa river at the Carillon dam and the Sa- flow entering the estuary and the Gulf of guenay river at the Isle Maligne dam.