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Pesticide Mixtures: Deadly Synergy in Salmon

Poisoned waters a toxic brew for salmon
March 04, 2009 - Feature Story ,
West Coast
This graph shows the hypothetical difference between the effects of an individual pesticide and pesticide mixtures on salmon brain function, as indicated by the degree to which the pesticide(s) inhibit function of an important enzyme acetylcholinesterase (AChE). As seen here, the potential neurobehavioral toxicity of the pesticide mixture can be additive or, if greater than the sum of its parts, synergistic.

Success at Redfish Lake

A brief look back at how captive breeding rescued a sockeye population
December 10, 2008 - Feature Story ,
West Coast
Hormone injections are used to advance the spawning time of sockeye. Credit: NOAA Fisheries