Rivers and Streams Study Design 02-16-11 - California · California Rivers and Streams The...
Transcript of Rivers and Streams Study Design 02-16-11 - California · California Rivers and Streams The...
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R&S Design 11-09-10 1
Sampling Design for a Statewide Survey of Contaminants in Sport Fish in California Rivers and Streams
The Bioaccumulation Oversight Group
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• BOG planning discussions – November-January• Draft Sampling Plan and QAPP – January • Peer Review Panel meeting – February• Finalize Sampling Plan and QAPP – End of February• Begin sampling – End of February• Year 1 data available – May 2012• Draft report on year 1 – January 2013• Final report on year 1 – May 2013
Products and Timeline
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SWAMP/BOG Monitoring Objectives1. Status2. Trends3. Sources and Pathways4. Effectiveness of Management Actions
Over the long-term, primary BOG emphasis on 1 and 2; 3 and 4 are secondary
In the near-term, emphasis on 1 (Status)
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Beneficial Uses
1. Fishing2. Aquatic Life
Over the long-term, the Program will evaluate the impacts of bioaccumulation on both, with an emphasis on 1
In the near-term, emphasis on 1 – Aquatic Life NOT INCLUDED
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• Sport fish• Prey fish• Birds• Mammals• Bivalves
Toolbox of Bioaccumulation Indicators
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• Consistent statewide assessment of all water body types • Building an overall summary report as we go
• Rivers and streams part of long-term survey cycle
• Fuller array of analytes than recent work in rivers and streams
Benefits of This Survey
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• TSMP• Fish Mercury Project• Region 5 Studies
• Mercury• Organics
• Sacramento River Watershed Program• UC Davis• USGS – Alpers et al, Valley work• USEPA National Rivers and Streams
Assessment
Significant Prior Work
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Management Questions For This Screening Study
Status of the Fishing Beneficial Use• For popular fish species, what percentage of
popular fishing locations have low enough concentrations that fish can be safely consumed?
Need for Further Sampling• Should additional sampling of bioaccumulation in
sport fish (e.g., more species or larger sample size) at a location be conducted for the purpose of developing comprehensive consumption guidelines?
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• Policy makers – Fact Sheet, Press Release• Water quality managers – Summary Report• The fishing public – Press Release, Safe to
Eat Portal
Audience and Information Products
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• Target species of toxicological concern: humans that consume fish
• Population of spatial units: fishing locations• Species of interest
• Fish species that are:• Popular• Widely distributed• Good indicators
Design Basics
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Coordination and PartnershipsCoordinated Efforts
• Are there any other studies happening that we should coordinate with?
• Check into:• Alpers work in the Sierra• The Sierra Fund• Region 5
Partners• Some limited Regional Board partnering• Check with fishing groups
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• One year• No phasing needed
Strategy for Phasing
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Spatial Units: Fishing Locations• Similar to
locations used in lakes
• Up to 1 mile length
• Considerations for selection• Coverage of
popular locations for sport fish consumption
• Stakeholder (Regional Board) interest
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Sampling Locations: Statewide
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Sampling Locations: North
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Sampling Locations: Delta Region
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Sampling Locations: Sierra Nevada
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Sampling Locations: South
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• See Gary’s spreadsheet for latest list
Locations
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Questions• How far to go with coverage of streams?
• A: hit popular locations as defined by Stienstra and Regional Boards
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Design Within Each Location• Replication to support 303(d) listing?
• No• Sampling design with a follow-up strategy to
conserve budget?• No
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Target Species• Fish species that are (in order of priority):
1. Popular for consumption2. Sensitive indicators of problems – “bad boys” – for the
different pollutants of concern – helps with evaluating safe consumption
3. Widely distributed – spatial coverage and patterns4. Represent different exposure pathways (benthic vs
pelagic)5. Continuity with past sampling
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Target Species
• Primary Targets• Where appropriate, two indicator
species per locationMercury indicator: e.g., largemouthOrganics indicator: high lipid benthic speciesMost locations will only have trout –sample one species at these locations
• Secondary Targets• In case primary targets are not found
• Vary by region• Bycatch
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Target Species Foraging Type Trophic
Level Distribution
Species Water column
Bottom feeder
Low Eleva-tion
Low Sierra
High Sierra
Good Candidate
Largemouth bass X 4 X X A Smallmouth bass X 4 X X A Spotted bass X 4 X X A Sacramento Pikeminnow X 4 X X B White catfish X 4 X X A Brown bullhead X 3 X B Channel catfish X 4 X X A Carp X 3 X X A Sacramento sucker X 3 X X B Tilapia X 3 B Bluegill X 3 X X B Green sunfish X 3 X X B Crappie X 3/4 X X B Redear sunfish X 3 X X B Rainbow trout X 3/4 X X X A Brown trout X 3 X X A Brook trout X 3 X A Kokanee X 3 ? X X B
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Target Size Ranges and Compositing for Each Species• Composite to stretch dollars• Use 75% rule• Target middle of distribution that is caught and
consumed• Need to determine ranges• Numbers in composites
• Generally 5
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Questions• How to handle hatchery vs resident fish?
• A: try to get residents or less recent releases• Pick sites away from hatchery release
points – note proximity to release point for each site
• Size?• Rounded fins?• ? Note this in the field
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Sample Processing and Analysis• Ancillary data
• Total length, fork length• Hatchery vs resident• Location coordinates• Field observations: bycatch, others?
• Skin-off fillets
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Analytes in Tissue• Mercury: generally composites, some individuals• PCBs: sum of 55 congeners, skip Aroclors, no
coplanars• DDTs: sum of six isomers• Dieldrin• Chlordanes: sum of 5 compounds
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Analytes in Tissue (continued)• PBDEs – no• Selenium - yes• PFCs - no• Dioxins - no• Omega 3 - no• Others?• Ancillary parameters: lipid, moisture
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Ancillary water or sediment quality data?• Will explore collaboration with Charlie Alpers’
study
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Archiving• Tiered approach
• Long-term archives• Short-term archives
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Sampling Methods• E-boat• Backpack shocker• Gill nets• Hook and line
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QA• QAPP
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Assessment Thresholds• Advisory Tissue Levels• FCGs• State Board Mercury
Objective?
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Collect 2 species per location as defined by the Statewide Bioaccumulation program. Sample collection costs not only include field time/costs, but also field data entry&QA, pre-trip preparation, post-trip duties, etc.
$5,500 56 $308,000
Fish Composite Preparation - includes 1 jar per composite created (DFG-WPCL) $100 36 $3,600
Archive - assume 1 jar per archive (DFG-WPCL) $5 180 $900
Fish Composite Preparation - includes 1 jar per composite created (MPSL-DFG) $100 35 $3,500
Archive - assume1 jar per archive (MPSL-DFG) $5 175 $875
NIST Archive - assume1 jar per archive (MPSL-DFG) $17 0 $0
Organochlorine Pesticides (OCH; 8081M) - tissue $584 62 $36,208
Polychlorinated Biphenyls (PCB Congeners; EPA 8082M) - tissue $544 62 $33,728
Polybrominated Diphenyl Ethers (PBDEs) - tissue $584 0 $0
Microcystin $436 2 $872
Other compounds of interest: Pyrethroids, Pharmaceuticals, Nonylphenol, Nonylphenol ethoxylates $0 0 $0
Mercury (Hg) - tissue individuals (dissection and analysis) $60 100 $6,000
Mercury (Hg) - tissue composites $66 62 $4,092
Selenium (Se) - tissue $150 71 $10,650
Scale analysis - on all black bass (based on 5-10 individuals) $85 10 $850
NIST Archive storage fees (based on 110 samples) $0
$409,275
Hatchery Collections $500 6 $3,000