Preparing Teachers for Deeper Learning PaperAL Preparing Teachers for Deeper Learning
Deeper pool = better pool Deeper riffles & runs = better quality Diversity of current velocities...
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Transcript of Deeper pool = better pool Deeper riffles & runs = better quality Diversity of current velocities...
Max 12
Pool/Current
5.]POOL/GLIDE AND RIFFLE/RUN QUALITYMAX. DEPTH MORPHOLOGY CURRENT VELOCITY [ POOLS & RIFFLES! ]
(Check 1 ONLY!) (Check 1 or 2 & AVERAGE) (Check All That Apply) - >1m [6] -POOL WIDTH>RIFFLE WIDTH [2] -EDDIES[1] -TORRENTIAL[-1] - 0.7-1m[4] -POOL WIDTH =RIFFLE WIDTH [1] -FAST[1] -INTERSTITIAL[-1] - 0.4-0.7m [2] -POOL WIDTH<RIFFLE W. [0] -MODERATE [1] -INTERMITTENT[-2] - 0.2- 0.4m[1] -SLOW [1] - <0.2m[POOL=0] COMMENTS:_______________________________________________________________
-VERY FAST[1] -IMPOUNDED [-1]-NONE [-1]
Deeper pool = better pool Deeper riffles & runs = better quality Diversity of current velocities available Mophology of riffles/pools affects
characteristics and quality
Poor/Glide and Riffle/Run
Riffle-Pool Morphology
Current Velocities in Streams
Eddy
Fast
Moderate
Fast/Very Fasts
Slow
QHEI Riffle/Run Metric
If best areas < 5cm or no riffle, metric scores a zero
Riffle/Run Characteristics What is depth of better
riffle and run areas? Measure depths in
areas that are clearly run or riffle
Are substrates coarse or fine?
Are substrates in riffle/run area embedded?
0
20
40
60
80
100
< 5 cmor NoRiffl e
5-10 cm> 10 cmShallow
Runs
> 10 cmDeepRuns
Darters
Dusky DarterBlackside DarterLogperchSand DarterJohnny DarterGreenside DarterBanded DarterVariegate Darter
Spotted DarterBluebreast DarterTippecanoe DarterRainbow DarterOrangethroat DarterFantail DarterLeast Darter
Cum
ulat
ive
Wei
ghte
dPe
rcen
t O
ccur
ence
Riffl e Depth
Darters and Riffle Depth
Calculating Stream Gradient:“Map Gradient”
Locate site on topo map
Find upstream and downstream contour line crossings
Calculate miles between contours
E.g. 640’ – 630’/1.5 miles = 6.67’/mile
0 1 2 3 4 5 6 7 8
TIPPECANOE DARTER
BLUEBREAST DARTER
SPOTTED DARTER
VARIEGATE DARTER
SLENDERHEAD DARTER
BANDED DARTER
EASTERN SAND DARTER
GREENSIDE DARTER
RAINBOW DARTER
LOGPERCH
CHANNEL DARTER
DUSKY DARTER
FANTAIL DARTER
BLACKSIDE DARTER
JOHNNY DARTER
ORANGETHROAT DARTER
LEAST DARTER
RIVER DARTER
QHEI Riffle Metric
Weighted Riffle Score
Large, Fast, Deep RifflesLow Embeddedness