us epa, great lakes national program office collaborations- lake erie 2014 cooperative science and...
TRANSCRIPT
US EPA, Great Lakes National Program Office
Collaborations- Lake Erie 2014Cooperative Science and Monitoring Initiative
Intensive Sampling Year
CSMI Rotational CycleCSMI Rotational Cycle
LakeSuperior
LakeHuron Lake
Ontario
LakeErie*
LakeMichigan
Cooperative Science and Monitoring
Cycle
Cooperative Science and Monitoring
Cycle
LaMP Management Committee identifies key Science and Monitoring
Needs** for Lake
CSMI-SC will facilitate coordination of
priority ONGOING science
CSMI-SC vets list to
determine how science
priorities can be
addressed: ONGOING
work or NEW work
required
Feedback: binational CSMI workplan presented to
LaMP Management Committee and CGLRM
and GLRRIN
ONGOING ScienceNEW Science
CSMI -SC vets list to determine what NEW
science can be initiated to address priority information needs, based on available
resources and expertise
Laboratory Analysis Phase
Data Analysis and Report Writing Phase
Each LaMP, with BTS, GLFC and SOLEC and support from CGLRM, GLRRIN organizes Lake Based Forum to discuss Science of the lake
Communicating Out
CSMI -SC will identify
where multiple
agencies are
conducting ONGOING
science that will benefit
from coordination
CSMI facilitates the development and
implementation of NEW science activities
Year of Field Activity
YEAR 2:
YEAR 3:
YEAR 4:
YEAR 5:
YEAR 1:
YEAR 1:
Cooperative Science and Monitoring Initiative Process
1. BEC
2. Primary literature publications;
3. Conference presentations/posters; joint synthesis reports
4. Outreach – CGLRM/GLRRIN
Subproject 1: Quantifying the internal nutrient loads to the water column in the western basin.
Assessing Nutrient / Eutrophication Dynamics in Western Lake Erie
Ohio Lake Erie Commission Gail P. Hesse, Executive Director
Sample/experimental sites for internal load measurements
Subproject 2: Evaluating the important factors of river hydrology and/or seasonality of loads to harmful algal bloom formation and dynamics in the western basin of Lake Erie, including the effects of storm and other meteorological/climatological forcing events
This project will couple a Bayesian Hierarchical SPARROW (BH-SPARROW) fit for the Great Lakes region and SWAT models calibrated for the Maumee and Sandusky River basins to quantify both N and P loadings.
Subproject 3: Developing a nutrient mass budget for the western basin of Lake Erie which includes sub-watersheds AND overall modeling synthesis
This is a fine-scale linked hydrodynamic –sediment transport –advanced eutrophication model suite for the lower Maumee River and the entire Western Basin of the lake. The model, called the Western Lake Erie Ecosystem Model (WLEEM)
11
19821986
19901994
19982002
20062010
0
5
10
15
20
25
Central Basin of Lake ErieSpring Annual Basin Averages for
Total Phosphorus1983-2012
TPTarget ConcLinear (Target Conc)
μg
P•L
-1
Dissolved oxygen data loggers
• At all ten Lake Erie Central Basin stations• Depths of ½ and 3 meters from bottom• Will be in place all season, June through September• Provide information on rate of oxygen loss, changes over season
US Geological Survey
• Ring Lake Erie’s central basin to look at extent of hypoxic zone.• Transects (not shown) to look at extent and potential effect of hypoxic
zone on fish• Lower food web and fisheries work requiring several ships/boats
Long-Term Water Quality Monitoring, Offshore – consistent sampling and analyses.
• Lakes Michigan, Huron and Erie started in 1983
• Ontario began in 1986• Lake Superior began in 1992
TRIAXUS 3D Towed Undulating Vehicle
Specifications
• Triaxus is a towed instrument platform that houses several sensors:• SeaBird CTD & D.O. probe• Active Fluorometer• Laser Optical Plankton Counter (LOPC)• Nitrate Analyzer• Side-Scan Sonar• Fluoroprobe• Transmissometer
• Towed behind the R/V Lake Guardian
Benthos survey – Buffalo State University and U.S. Geological Survey
140+ stations
Mussel population estimates
Entire benthic community
US Geological Survey – David Krabbenhoft• Mercury monitoring/research to take place in September• Where is the mercury coming from• How is it becoming methylated (made more toxic)?
Total Mercury by Lake Layer in the Great Lakes (note: these do not include Western Lake Erie)
Same results plotted with Western Lake Erie included
US Geological Survey – Dale Robertson• Developing techniques to estimate the load of
nutrients entering Lake Erie from the main rivers.
• Extending work of Dr. Dave Dolan, whose last estimates are from 2008.
• SPARROW model, but stepped down to a daily estimate
Lake of the Year (LOY) Program
Pushing the Science
Perform a detailed bioaccumulation study• Water (dissolved and particulate) • Phytoplankton• Zooplankton• Mussels • Benthic macro invertebrates• Forage fish• Lake trout
Started with Lake Superior in the summer of 2011
Top to bottom lake snapshot
Great Lakes Fish Monitoring Program (GLFMP) Contaminant List
• PCB congeners
• PCB co-planers
• Hexachlorobenzene
• Octachlorostyrene
• Lindane
• Alpha BHC
• Dieldrin
• Heptachlor epoxide-b
• Cis-chlordane
• Trans- chlordane
• Oxychlordane
• Cis-nonachlor
• Trans- nonachlor
• pp,-DDT
• pp,-DDE
• pp,-DDD
• Endrin
• Mirex (Lake Ontario Only)
• Toxaphene& homologs
• PBDEs
• Hg
• PCDD/Fs
PFOA, PFOS* Fluorotelomer alcoholsPolychlorinated naphthalenesDacthalMusksAlkyphenolsNon-PBDE BFRs Polybrominated BiphenylsPharmaceuticalsSiloxanesTrace metals including thallium
Comprehensive and Quantitative Screening for Emerged and Emerging Contaminants of
Concern
Pushing the Science
* Also measured in routine samples
Sediment Survey
• Sediment cores taken throughout lake.• Cores sectioned, dated and analyzed for contaminants.• Determines history and current inventory of contaminants in the lake.