wpohead.ppt | us epa archive document · – natuu cove d ve s yral cover diversity – impervious...
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WESTERN PILOT
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Purpose of the Western Pilot• Advance the science of ecosystem monitoring
for western ecological systemsfor western ecological systems– indicators
reference conditions– reference conditions– designs
assessment methods– assessment methods• Build State capacity for long-term monitoring
– monitoring tools– analytical capability– partnerships
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Objectives of the Western Pilot• Demonstrate indicators and designs for
measuring environmental progressg p g– unbiased estimates of condition of ecological
resources – comparative ranking of stressors– tools for biocriteria
• Demonstrate the value of survey based monitoring developed by EMAPmonitoring developed by EMAP– apply to real problems of Regional/State
interestinterest
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Geographic Scope of the Western PilPilot
• EPA Regions 8– States of North Dakota, South Dakota,
Montana, Wyoming, Colorado, Utah• EPA Region 9g
– States of Arizona, Nevada, California• EPA Region 10EPA Region 10
– States of Oregon, Idaho and Washington
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Ecological Resources of the WesternEcological Resources of the Western Pilot
• Coastal systems (estuaries and coastal )waters)
• Surface water systems (rivers and streams)• Landscapes
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Components of the Western Pilot• Coastal
– conditions of estuaries by state– focus areas chosen by EPA regional offices
• Surface waters– conditions of rivers and streams by State– focus areas chosen by EPA regional officesfocus areas chosen by EPA regional offices
• Landscapesland cover atlas for the West– land cover atlas for the West
– quantification of relationship between landscape indicators and aquatic conditionlandscape indicators and aquatic condition
– focus areas chosen by EPA regional offices
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Region 8 Focus Areas
• TBD
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Region 9 Focus Areas
• TBD
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Region 10 Focus AreasRegion 10 Focus Areas
• Coastal– Tillamook Bay and north coast of Oregon
• Surface WatersSurface Waters– Deschutes and John Day basins
Tillamook Bay watersheds (STAR grant)– Tillamook Bay watersheds (STAR grant)• Landscapes
D h b i– upper Deschutes basin – north coast of Oregon (Newport to Seaside)
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Example Coastal Indicatorsp
• Fish communityFish community• Fish pathology
i h i i i• Fish tissue contamination• Benthic community• Sediment contamination (e.g. metals, organics)
• Water physio-chemical (nutrients temperatureWater physio chemical (nutrients, temperature, alkalinity dissolved oxygen, heavy metals, depth)
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Example Surface Water IndicatorsExample Surface Water Indicators
• Fish assemblageg• Fish tissue contamination• Macroinvertebrate assemblage• Macroinvertebrate assemblage• Periphyton• Physical habitat (e.g. riparian characteristics, woody
debris, canopy cover, gradient)• Water physio-chemical (e.g. nutrients, temperature,
alkalinity dissolved oxygen, heavy metals)
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Example Landscape Indicators
• Riparian indicators– land cover along streams– disturbance (e.g. grazing)
• Watershed indicators– land use and cover – upland erosion– natural cover diversityu cove d ve s y– impervious surfaces– population densitypopulation density
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Value of Improved Approaches to i iMonitoring
• Monitoring for resultsMonitoring for results– GPRA objectives
T ti• Targeting– most important areas– most important stressors
• Support development of biocriteria• Support for specific assessments
– 305 (b) reporting( ) p g
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Example Geographic TargetingPoor Fish Integrity
Western AppalachiansValleyRidge & Blue RidgeNorth-Central Appalachians
0 20 40 60 80 100% Stream Length
All
% Stream Length
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Key Elements of the EMAP ApproachKey Elements of the EMAP Approach
• Ecological (i e biological) resources• Ecological (i.e., biological) resources• Direct measures of condition• “Integrated” condition• Reference conditions• Surveys for unbiased results• Ranking of stressors• Ranking of stressors• Spatial comparisons
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Survey Design AdvantagesSurvey Design Advantages• Guarantees representation and inference toGuarantees representation and inference to
systems of interest• Adapted to resource characteristics• Adapted to resource characteristics• Adjusts sample sizes to meet precision
i trequirements • Adaptable to temporal and spatial scales of
resolution
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Lessons from Mid Atlantic Pilot
• True ORD/Regional partnerships necessary– Internal Regional and ORD commitment top to
bottom (long-term)• Biological and habitat indicators compliment
current chemical monitoring, can be used now and are economical
• Sound environmental characterization can drive management decisions and influence public perceptionsp p p
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Lessons from Mid Atlantic Pilot (cont.)( )• Statistical surveys are very important to
setting goals and meas ring progresssetting goals and measuring progress
• Expanding use of environmental indicatorsExpanding use of environmental indicators and statistical surveys changed the view of relative riskrelative risk
• Long-term outlook essential
• Partnership/stakeholders involvement is iti lcritical
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Benefits of EMAP Approach pp
• Improved estimates of population sizep p p• Expectations differ from reality• Scientifically sound reference conditions• Scientifically sound reference conditions• Scientifically sound regional assessments• Scientifically sound cross regional assessments • Improved 305 (b) reportingp ( ) p g• Tools for landscape characterization and
assessmentsassessments
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Improved Estimates of Population Sizep pOregon Coho Salmon
• Historic long term monitoring of spawning suggests minimal problem 35
4045
TraditionalProbability
problem • Historic survey biased• Salmon populations continue
i20253035
to decline• Survey results more
accurately reflect populations 51015
y p p• State program modified based
on probability design0
1990
1991
1992
1993
1994
1995
1996
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Expectations Differ from Realityp y
Salmonid Species
29%
49% 7%49%
15%
7%
No salmonid spp.1 salmonid spp.2 salmonid spp.>2 salmonid spp.
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Scientifically Sound Reference Conditions
Expert opinion compared to probabilityp p p p y
100 25
e Pe
rcen
t
60
80
EPT
Tax
a
15
20
Cum
ulat
ive
20
40
Probability S itesN
umbe
r of
5
10
Num ber o f EPT Taxa
0 5 10 15 20 25 30 350
yExpert O pin ion R eference S ites
0
ExpertO pin ion
ReferenceS ites
ProbabilityS ites
ReferenceSet o f
ProbabilityS ites
Mid Atlantic streams
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Scientifically Sound Regional A tAssessments
Stream Conditions in Mid-Atlantic Highlands
Introduced Fish
Biological Quality
Impaired
Ranking of Stressors
Nutrient
Shoreline Habitat
Introduced Fish24%
Acid Deposition
In-Stream Habitat
Enrichment
42%34%
0 10 20 30 40 50
Acid MineDrainage
Acid Deposition
UnimpairedMarginal 0 10 20 30 40 50
Percent of Stream Miles
pMarginal
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Scientifically Sound Cross Regional A tAssessments
Benthic conditions in Estuaries
Louisianian Province Virginian Province
Degraded 30 ± 6%
Degraded18 ± 8%
Undegraded70 ± 6% Undegraded
82 ± 8%
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Scientifically Sound Cross Regional AssessmentsAssessments
Ranking of stressorsLouisianian Province Virginian Province
Unknown Metals
Louisianian Province Virginian Province
Unknown10%
Low Dissolved
Habitat14%
e s42% Unknown
39%
Low Dissolved Oxygen
49%
Low Dissolved Oxygen
2%
Toxicity4%
Contaminants28%
BothContaminants
10%2%
%
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Improved 305 (b) ReportingD lDelaware
Traditional 305(b) Report -Chemical Evidence, Aggregation of Existing Data
New Report -Chemical Evidence, Probability Survey
Not Supporting
13%
Fully Supporting24%
Fully Supporting
87%
Not Supporting76%
Fully Supporting
New Report -Biological Evidence,
Probability Survey
13%
Not Supporting
87%
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Tools for Landscape Characterization and Assessmentand Assessment
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WESTERN PILOT
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