Hydraulic Research for Successful Fish Migration Improvement – ”Nature-like”,Fishways
My name is Matt and I like fish
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Transcript of My name is Matt and I like fish
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My name is Matt and I like fish
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Map from Mills and Holeck 2001; Larval goby illustration from Lesslie and Timmins 2004
(Photo Credit: S. Olenin)
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http://www.illinoissmallmouthalliance.com/goby.html
Bioaccumulation of Toxins
http://sgnis.org/publicat/slide/RG-S10.jpg
Aggressive Tendencies Voracious
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26 of 73 watersheds (35.6%) 54 of 119 sites (45.4%)
Furthest Inland:
33.9 stream km
What Streams Have Round Goby Invaded?
Appx. 280 km of stream
Documented as Invaded
Movie
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42% (1,369 km) identified as suitable(7% of state)
44% (8,878 km) identified as suitable
Where Will Round Goby Invade Next?
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2009 Enclosure Experiment
Preliminary Results
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Questions
1. Fish Growth
2. Invertebrate Diversity and Abundance
3. Periphyton biomass
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Treatments
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p<0.001
% Change in Fish Weight
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% Change in Fish Weight
p=0.01
(0.008 for A-B comparison)
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% Change in Fish Weight
p=0.05
(0.07 for A-B Comparison)
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% Change in Fish Weight
p=0.004
(0.009 for A-B Comparison)
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Changes in Up- and Downstream Fish Communities After Dam Removal
Alewife Foraging in Coastal Lake Michigan: A Benthic-Pelagic Linkage
Stem-boring Insect Larvae in a Spartina alterniflora dominated salt marsh
http://limnology.wisc.edu/personnel/kornis/index.htm