Smaller Low-Oxygen Levels Predicted for Chesapeake - WBOC-TV 16, Delmarvas News Leader, FOX 21 -

Smaller Low-Oxygen Levels Predicted for Chesapeake

Posted:
(Photo: WBOC) (Photo: WBOC)

WASHINGTON (AP)- Researchers say low oxygen levels should affect smaller-than-average areas of the Chesapeake Bay this year.

Scientists said Tuesday that they are expecting smaller-than-average hypoxic levels this year, meaning a smaller-than-average "dead zone" in the nation's largest estuary.

Hypoxic zones with very low oxygen and anoxic zones with no oxygen are caused by excessive nutrient pollution from fertilizer runoff from farm fields and lawns.

Nutrients like nitrogen and phosphorous can spur algae blooms in the water, consuming oxygen needed by marine life. Weather conditions, including wind speed, wind direction, precipitation and temperature, also play a role in dead zones.

Researchers say the Chesapeake dead zones, which have varied considerably in recent years, threaten an effort to restore the bay's water quality and enhance its production of crabs, oysters, and other fisheries.

 

  • Most Popular StoriesMost Popular StoriesMore>>

  • Updated: Fire Ruins Historical Hebron Church

    Updated: Fire Ruins Historical Hebron Church

    Tuesday, July 22 2014 4:31 PM EDT2014-07-22 20:31:09 GMT
    Fire has destroyed the historical St. Paul's Episcopal Church located on westbound Route 50 in Hebron.More
    Authorities are investigating a Tuesday fire that destroyed the historical St. Paul's Episcopal Church at the corner of Memory Gardens Lane and Route 50 in Hebron, Md. Preliminary damage is estimated at approximately $500,000.More
  • Two Killed in Del. Crash

    Two Killed in Del. Crash

    Tuesday, July 22 2014 11:45 AM EDT2014-07-22 15:45:19 GMT
    Delaware State Police say two Dover men were killed Monday night after the tow truck they were riding in went off the road and crashed into a telephone pole near Little Creek.More
    Delaware State Police say two Dover men were killed Monday night after the tow truck they were riding in went off the road and crashed into a telephone pole near Little Creek. More
  • Federal Appeals Court Deals Blow to Health Law

    Federal Appeals Court Deals Blow to Health Law

    Tuesday, July 22 2014 11:46 AM EDT2014-07-22 15:46:35 GMT
    A federal appeals court has delivered a serious setback to President Barack Obama's health care law, potentially derailing subsidies for many low- and middle-income people who have bought policies.More
    A federal appeals court has delivered a serious setback to President Barack Obama's health care law, potentially derailing subsidies for many low- and middle-income people who have bought policies.More
Powered by WorldNow

All content © Copyright 2000 - 2014 Worldnow and WBOC. All Rights Reserved. For more information on this site, please read our Privacy Policy and Terms of Service