Narragansett Bay Areal Extent of Hypoxia in 2009 October 8, 2009 NOAA CHRP Managers Meeting...
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Transcript of Narragansett Bay Areal Extent of Hypoxia in 2009 October 8, 2009 NOAA CHRP Managers Meeting...
Narragansett Bay Areal Extent of Hypoxia in 2009
October 8, 2009
NOAA CHRP Managers Meeting
Christopher Deacutis
Narragansett Bay Estuary Program
URI Coastal, Institute
& Warren Prell & David Murray
Brown Univ.
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1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53
% o
f A
rea S
urv
eyed
Year
Suboxic (<=4.8 mg/L) Hypoxic (<= 2.9 mg/L) Severely Hypoxic (<=1.2 mg/L)
1999 2000 2001 2002 2003 2005 2006 2007 2008 20092004
Narragansett Bay Summer Dissolved Oxygen Spatial Surveys- Botttom DO
• % of Survey Area at various hypoxic levels since 1999 (Total area surveyed ~ 150 km2)
• Sulfidic waters Greenwich Cove
August 18 2009
Fish kill Chepiwanopxet Greenwich Bay August 1,2009
Juv. Winter Flounder
8-1-09
Piscivore Feast