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1
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- From Dave Peck April 2003
- (EMAP Western Pilot Study)
- With CPCB modifications 17 August 2007
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2
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- YEAR 1 = 5 random sites chosen by EPA
- YEAR 2 = 30 random sites chosen by EPA
- 5
reference sites chosen by CPCB
- Office evaluation
- Maps & permission
- No sites in Missouri R. floodplain
- No more than 3 sites per tributary
- Reconnaissance if possible
- Go through list of PRIMARY sites first.
- If you can’t sample a site, replace it with the next site on the
ALTERNATE list
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3
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- Updated tetanus shots
- CPR and 1st aid training
- WEAR LIFEJACKETS in BOATS
- Sunscreen, water, food, etc.
- Water quality may pose a hazard at some sites (Wash often, use
sanitizer)
- Comfortable with site conditions and access
- Wide range of sites (urban, canals to wilderness )-- need to be
prepared for all kinds of different safety situations
- Electrofishing– using powerful generators, dealing with water in raft
at times
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4
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- Data Forms
- Will be only record of your visit
- “If you don’t write it down, it never happened.”
- No doodling!!
- Make copies, but send originals
- Stream ID and visit (date) must be correct on all forms for a site
- Check forms before you leave the site
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5
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6
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7
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8
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9
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10
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11
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12
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13
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- Sampling conducted during one pass downstream through the sampling reach
- Fish raft – samples along shoreline, stops to process fish at each
transect. Alternate banks every
2 transects.
- Habitat raft - samples down channel, then stops at each transect for
nearshore and riparian measurements.
One bank entire reach (Fig. 6-1).
- GPS reading taken at each transect.
- Some duties (e.g., collection of benthos and periphyton samples) can be
done by either raft (said EPA)
- But probably better for fish raft b/c of switching banks?
- At last transect K
- Water chemistry samples & in situ measurements, mid-channel
- Qualitative assessment forms (e.g., Channel Constraint, Visual
Assessment, RBP Habitat)
- Samples processed at take-out point
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14
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- PROBABILITY SAMPLING
- Systematic randomized sample of stream network from 1:100,000 scale
USGS topo maps (perennial “blue line” streams)
- Design is optimized to estimate condition of the population expressed
as stream length
- Very important to go to randomly selected (X-site) site on map; no alternatives
- But can slide reach around X
- FINDING THE X-SITE
- Non-wadeable sites: located on
map prior to sampling, sampling reach is estimated based on x-site,
location of put-in and take-out points
- Goal is to be within 100 m; 0.25 inches on 7.5” map = 150 m = 0.1 miles
- In the field, use all available means to confirm you are at the correct
river
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15
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- Site Verification
- Sampleable
- Wadeable
- Boatable
- Partial: Sampled by wading or
by boat
- Interrupted flow
- Altered: stream different than
map depiction
- Non-Sampleable (Permanent)
- Dry when visited (100 %)
- Dry- not visited (e.g., During recon or when calling for access
permission)
- Still need to complete a verification form for these sites
- Wetland (no defined channel)
- Map error--No Channel or Water Body Present
- Impounded
- Other (e.g., pipeline or underground flow)
- Non target Canal: Must meet both criteria
- No natural channel
- Only purpose is to move water
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16
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- Site Verification (Continued)
- No Access
- Permission Denied
- Permanently Inaccessible
- Temporarily Inaccessible (fire, weather, floods, need permission)
- Can be re-scheduled for following year
- Still need to complete a verification form for these sites
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17
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- Sampling Atypical Flow Conditions
- Do not sample if flow seems atypical due to recent precipitation (Table
4-2)
- Classify as “Temporarily Inaccessible” on Verification Form
- Partially Boatable sites (Table 4-1)
- Do what can be done SAFELY
- Interrupted flow (enduring pools)
- Do not sample if excessive dragging of rafts will be required
- Classify as “Temporarily Non-sampleable—Not Boatable” on Verification
Form
- If sampled by raft, collect all indicators if possible
- Access Permission/Public Relations
- Always ask for permission on site
- land owner may not have told
renters
- Act professionally
- Good P.R. goes a long way
- Safety
- Don’t sample during storm events if water is very turbid/high. Flash floods?
- Think safety first; driving is biggest hazard
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18
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19
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- Before sampling
- Site dossiers
- Check equipment (pre-label and package chemistry sample containers)
- If used
- Conductivity meter needs to be checked periodically (but not before
every site) if you are doing field measurements
- QC check solution
- Low conductivity (Dilute phosphate buffer), approx. 75
microSiemens/cm at 25 degrees C.
- Medium/high conductivity:
(Potassium chloride), approx 700 or 1400 microSiemens/cm at
25 degrees C.
- Check temperature probe on oxygen meter periodically using a
thermometer
- CHECKLISTS!!!!
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20
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- Determined ahead of time from map measurements
- A is upstream, K is downstream
- This is different than the manual:
- 40 x mean wetted width (at the point of entry)
- Minimum reach length = 150 m; Maximum 1000 m
- Can slide reach as long as X is still within reach
- X is the site coordinates
- Main channel between transects
- 10 habitat, substrate, backwater measurements
- 20 snags, Thalweg measurements
- At transects (switch shores every other transect: odd # sites begin on
the left, even # sites begin on the right)
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21
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22
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- Barriers in reach
- Ponds, lakes, reservoirs
- Stream order (100,000 map) changes (confluences)
- Impassable physical barriers (cliffs, dams)
- Access denials
- Keep constant reach length, slide reach to avoid barrier, X-site must be
in reach
- Do Not slide for bridges, rip-rap, pipes
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- Collect a water sample at last transect (K) in mid-channel or flowing
section of stream (or another transect if necessary)
- EPA will tell us what they want, but here’s the former method:
- One 4 L cubitainer: major anions/cations, total nutrients, DOC, TSS,
acid-base chemistry
- Two, 60 mL sealed syringes (protect from CO2 exposure):
- Dissolved inorganic carbon (DIC)
- pH
- Avoid contamination
- Rinse container and lid 3x
- Do not inflate cubitainers by mouth
- Avoid food, insect repellent, sunscreen before collecting sample
- Fill syringes to 60cc, no bubbles in syringe, don't label over
graduations
- Exclude all air from cubitainers, tape lids
- Keep cold and dark on ice, ship next day if possible
- If not, ship as soon as you can
- Use ice substitute packs instead of ice to ship if possible
- LOTS OF ICE (Total wt. of cooler should be 40-50 lbs.)
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24
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- In situ meter reading of air and water temperature,dissolved oxygen
(DO),conductivity, turbidity, salinity at same place
- Record on both EPA and CPCB forms
- Phytoplankton
- 50 ml
- Filter!
- Return to Lim.
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25
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26
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- NOT the EPA method in the Peck et al. manual
- CPCB 5 vial method
- Every other transect (A, C, E, G, I), proper bank
- CPCB form
- Label vials
- Site number
- Vial number (1 through 5)
- Date
- Use deliminator
- Hard substrate - Upper surface scrubbed & aspirated
- Soft substrate - Top 0.5 cm aspirated
- Filter!
- Keep on ice, in dark
- Return to Lim
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27
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28
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- Each transect, proper bank
- 1 D-frame kick net sample - 500 micrometer mesh
- At appropriate bank
- Away from river margin, but
- Depth <1 m
- Sample area = 1 net width wide, 1 net width long
- Place heavy mussels and snails in net
- Scrub large rocks into net, then remove from quadrant
- 30 second kick
- Note habitat and substrate
- Composite all 11 samples from a site
- Label
- Preserve in formalin
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- Kick net sampling (Table 9-1)
- Riffle/run sampling (enough flow to extend net)
- Examine and scrub rocks and larger substrates within 1 ft2
quadrant first, then place them outside of quadrat.
- Kick remaining finer substrate (top layer only) in quadrat for 30
seconds
- Stand at side of net, not upstream
- Only check one substrate type per sample
- Also indicate microhabitat type at sampling point
- Pool sampling (not enough flow to extend net)
- Examine and scrub rocks and larger substrates within 1 ft2
quadrant first, then place them outside of quadrant.
- Stir up top sediments within quadrant, sweep net through cloud for 30
seconds
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30
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- Processing (Table 9-2)
- Don’t label jars until you’ve collected the sample!
- Remove as much material as possible before preserving (coarse and fine)
- Do not fill jar more than 1/4 full of residue
- Fill to top with preservative (no headspace) to cushion specimens
- After adding preservative, gently rotate the jar to horizontal position
to mix to minimize damage to specimens
- Don’t invert, agitate, or swirl
- Complete label for inside of jar (water-resistant paper)
- Make sure info on label and form match (e.g., no. jars)
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31
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32
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- NOT amphibians and crayfish
- Electrofishing - primary sampling technique
- If conductivity > 1700 us/cm, use GPP 5 unit
- 1 pass through reach along banks, with effort allocated among entire
reach length (45 min for small streams, 3 hr for large, wide streams)
- Areas between transects (“sub-reaches”) used to spread effort
throughout reach, and to keep track of where species were collected
- Alternate banks every 2 sub-reaches
- On larger streams, may take > 1 day to completely sample reach
- Electrofishing swath
- 3 – 4 m wide
- At oar’s length from shore
- Near cover
- Depths < 3 meters wherever possible.
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33
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- Sein each transect as last resort
- Kick seining or sweep hauls
- Multiple short hauls preferred over long ones to minimize mortality
- Need to keep track of sites not fished and why, and how much of reach
was sampled effectively
- Header section of collection form
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34
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- ID and tally
- Keep “species” bagged separately
- OK to use more than one tag for species to avoid opening and closing
bags as you progress through reach
- Voucher specimens:
- Listed species; photograph,
then release
- Large or easy to ID: Keep 1-2
specimens, or photograph if too large or game species
- Smaller or hard to ID will have been brought back to lab: Preserve up to 20 adults
- Need to be able to correct counts for misidentifications
- GOOD CLEAR PHOTOS ARE CRITICAL
- Must be able to confirm ID from photo
- Make sure vouchers are properly preserved!
- Don’t pack fish in bags; use > 1 bag/tag if necessary
- Fill in every sub-reach where species is collected
- We won’t compute Jaccard coefficient
- Record any specimens with anomalies (not type), and mortality from
collecting or handling
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35
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36
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37
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- Used as “Sampling device” to get some idea of long-term exposure of
stream to toxics
- Vouchers come before tissue.
- Two types of samples
- Big > 120 mm total length
- Up to 3 individuals of 3 different species
- Piscivores >> Invertivores >> Omnivores
- Up to 9 different samples
- Each species gets own ID number
- Small < 100 mm total length
- Similar sized individuals; 400 g wet wt. (approx 14-16 oz.) “Pop can”
- One ID number for all
- If tissue samples are too large for a clear zip-lock bag, place in a
garbage bag and put a second label on the outside of the garbage bag
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38
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39
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- Done at end of day (or on the way to hotel)
- Visual Assessment
- Place to note things you can’t on other forms
- Watershed disturbance:
- Consider “catchment” (watershed upstream of Transect K)
- Include any observations driving to and from site
- Site Characteristics:
- 200m circle about X-site for site characteristics
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40
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- Take care of samples the day you return!
- Chemistry samples for USEPA
- Chain-of-custody
- Seal coolers
- Store in walk-in cooler
- Take to EPA the next day
- Periphyton & phytoplankton samples for Lim
- Chain-of custody
- Small cool in walk-in-cooler
- Leave a note for her
- Fish and bugs
- Track on sign-in sheet in tile room
- Let lab person know samples have arrived
- Fish tissue to ???
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42
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- The next day review field sheets
- Missing info
- Clean up handwriting
- Photocopy & put in order
- Clean equipment
- Hose outside
- Clean up vehicles and boats
- FIX anything needing fixing
- Gas receipts to Josh
- Travel forms
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43
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- These are in the other presentations.
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