freshwater contaminants
DESCRIPTION
Freshwater Contaminants. Glacier Bay National Park and Preserve Klondike Gold Rush National Historical Park Sitka National Historical Park. M. Humling /USFS. Justification. Airborne contaminants. Marine contaminants. Freshwater contaminants. Justification. ?. M. Humling /USFS. - PowerPoint PPT PresentationTRANSCRIPT
Southeast Alaska NetworkInventory and Monitoring Program
Freshwater Contaminants
Glacier Bay National Park and PreserveKlondike Gold Rush National Historical Park
Sitka National Historical Park
M. Humling/USFS
Justification
Southeast Alaska NetworkInventory and Monitoring Program
Marineenterprises
G eolog ic patte rnsand processes
O cean pa tte rnsand processes
Islandbiogeography
Climatechange
H um an activ ity
Glaciers
G loba l andreg iona l c lim ate
M arine Freshwater
Terrestrial
Airborne contaminantsMarine contaminantsFreshwater contaminants
Justification
Southeast Alaska NetworkInventory and Monitoring Program
M. Humling/USFS
?
Objectives
Southeast Alaska NetworkInventory and Monitoring Program
Initial assessment: baselines, geographic and landscape variability?
Create long-term status and trends monitoring program for Hg and POPs
T. McCabe/USDA NRCS
P. Kaiser/USFWS
NPS Photo
Source: Wikipedia.com
Logistics and Budget
2007 initial assessment (Nagorski et al.) = $85K
FY12 funding for protocol development (O’Hara et al.) = $55K(incl. initial literature review)
Southeast Alaska NetworkInventory and Monitoring Program
Andres Lopez, UAF
Grad student(protocol
development)
Todd O’Hara Lab, UAF
Lisa Hoferkamp, UAS
What we’re learning
Southeast Alaska NetworkInventory and Monitoring Program
Generally, the watersheds of SEAN parks are quite cleanMercury and POPs found in all watersheds, but no human or wildlife health exceedances
Streamwater and sediments extremely low levels
Age-1 coho elevated mercury levels (up to 80 ng/g)
But…
What we’re learning
Southeast Alaska NetworkInventory and Monitoring Program
OR, WI, & FL Sherman Cr. SEAN
Total Mercury (ng/g)
0
50
100
150
200Mayflies
What we’re learning
Southeast Alaska NetworkInventory and Monitoring Program
Watershed age (years)
10 100 1000 10000
Total mercury (ng/g)
0
2
4
6
8
10
12
14
16
YoungMedium
Old
Age-0 coho salmon
watershed age = methylmercury
What we’re considering
Southeast Alaska NetworkInventory and Monitoring Program
(from Van Metre and Mahler 2005)
Lakebed sediments
(from McIntyre 2004)
Fish tissue
Southeast Alaska NetworkInventory and Monitoring Program
Program Delivery
+ SEAN staff
