This study contributes to the understanding of EDCs and their environmental effects. In the spring of 1997, the research team began to compare data collected from spray maps of the Canadian Wildlife Service's annual reports of the Forest Pest Control Forum and other provincial monitoring reports with data on Atlantic salmon runs collected from DFO reports and Canadian Atlantic Fisheries Advisory Committee reports. There was also a broader event of unusually heavy salmon smolt mortality in 1977. 1.8D and blueback herring catches in New Brunswick. 1.8F and salmon returns.
Atlantic salmon are anadromous and have a complex life history.
Eggs are deposited in freshwater nests made on the gravel bottom in late October and early November. This process requires two to three years. After reaching a certain size, the parr undergo a series of physiological changes to adapt to seawater and are then called smolts. The smolts live in pools or the mouth of the river before migrating to sea in May or June. Once the smolts have left the river system, monitoring of their progress at sea is difficult.