Lakes and Rivers
Change in freshwater discharge into the Arctic and North Atlantic
Freshwater discharge from Canadian rivers into the Arctic and North Atlantic Oceans has decreased by about 10% over the past 40 years. This has been attributed to a decrease in precipitation over the same period.11, 12 In spite of this, an overall 5.3% increase in river discharge to the Arctic Ocean has been documented. The net increase is due to significant increases in annual discharge from the six largest Eurasian rivers.13, 14 Freshwater discharge to northern seas can influence ocean processes that, in turn, influence the population dynamics of marine species.
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