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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