Some Like It Dark: Light Pollution And Salmon Survival

June 4, 2018

FISHBIO

The interaction between light pollution and predation could deal a heavy blow to species already struggling to survive. Bridges, in particular, often have lighting that shines into rivers at night, and attraction to these stationary lights can stop juvenile fish in their tracks as they migrate downstream, making them vulnerable to predators. Fish also frequently migrate and feed at night to hide from predators in the darkness, and bright lights shining on the water eliminate their protective cover. In rivers where salmon spawn, juvenile salmon can be especially impacted by bright nighttime lights or reflections on the surface of the water because predation is a major contributing factor to the high mortality of juvenile salmon. Light pollution from the iconic Sundial Bridge in Redding, California (shown above), was a suspected factor that contributed to the near loss of Sacramento River fall-run Chinook salmon from 2011–2013.

Click here to read the full article.

City Light Impacts on Declining Salmon Populations

March 21, 2017

ECOS submitted the following letter with concerns about outdoor lighting on the Sacramento riverfront and its effects on local salmon populations, such as the endangered Sacramento River winter-run Chinook salmon, which are particularly important among California’s salmon runs because they exhibit a life-history strategy found nowhere else on the West Coast.

Read the full letter by clicking here.

American Medical Association warns of health and safety problems from ‘white’ LED streetlights

June 17, 2016

By Richard G. ‘Bugs’ Stevens

The Conversation

The American Medical Association (AMA) has just adopted an official policy statement about street lighting: cool it and dim it.

The statement, adopted unanimously at the AMA’s annual meeting in Chicago on June 14, comes in response to the rise of new LED street lighting sweeping the country. An AMA committee issued guidelines on how communities can choose LED streetlights to “minimize potential harmful human health and environmental effects.”

Can communities have more efficient lighting without causing health and safety problems?

Read more here: https://theconversation.com/american-medical-association-warns-of-health-and-safety-problems-from-white-led-streetlights-61191