Saturday, March 26, 2016

Mass fish die off in Florida, Chile

Mass-mortality events are sudden, unusual crashes in a population. They fill the space between the regularity of background death rates and the flare of species burning out into extinction. If you think that you are hearing about them more often, you’re right.
Air pollution, runoff from fertilizers and septic tanks, higher temperatures, among other things, is helping fuel a large algal bloom in Florida's Space Coast region that has caused millions of fish to die. The brown tide algal bloom is not toxic. It kills the fish by depleting the amount of oxygen in the water.
An unusually warm mass of water in the Pacific Ocean known as The Blob has had close ties to much of the weather making news in North America.

Nothing this extraordinary has been seen before and it could be a precursor to what climate change will bring.
A massive algae bloom is responsible for the deaths of 23 million salmon in Chile. Temperatures are 2 to 4 degrees (Celsius) above average for this time of the year, there's a lot of sunlight, a lack of rain and very mild winds, all of which are conditions for the micro algae.

20 per cent of the country's annual production has been lost so far.