‘When the Glaciers Disappear, Those Species Will Go Extinct’

Studying food webs in different kinds of streams will lead to a better understanding of what will happen as glaciers like the Herbert continue to retreat and meltwater flows eventually decline, replaced by water from other sources. Salmon and similar fish are born in freshwater streams, then head to sea to grow, often for years, before returning to fresh water to spawn and die. Water temperatures must be just right for salmon to develop, so, as glacial meltwater declines and stream temperatures rise, populations may be affected.

Source: www.nytimes.com