Thursday 11 July 2013

Chesapeake Bay Dead Zone and Ancient woolly mammoth on display

New Study Reveals Chesapeake Bay Dead Zone Hits Fish Hard
Catherine Griffin
Dead zones that characterize Chesapeake Bay during the summer may be having a major impact on fish. A 10-year study has recently revealed that these low-oxygen areas are impacting the distribution and abundance of fish that live and feed near the Bay bottom, which could be a major issue for fisheries in the area. Dead zones usually form when excessive loads of nitrogen from fertilizers, sewage and other sources are dumped into the water. These nutrients then "feed" algal blooms. While the algae produce oxygen when they're alive, though, they soon die off.  They then sink to the bottom, providing a rich food source for bacteria. Unfortunately, these bacteria take up dissolved oxygen from nearby waters and create a condition called hypoxia, which are extremely low-oxygen conditions. see rest here :

I wonder how that affects Chessie, the sea serpent said to live in the area. Maybe a lack of sightings may be due to a lack of fish due to the dead zones and Chessie is hunting elsewhere.

Ancient woolly mammoth Yuka goes on display in Japan
A woolly mammoth, 39,000 years-old and found incredibly well-preserved in ice in Siberia, Russia, is to go on display in the city of Yokohama, Japan. The animal, which scientists named Yuka, is three metres long and was discovered three years ago. But what made it so remarkable is that the animal's body - and much of its fur - was so well preserved by the ice.

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