My name is Matt and I like fish

Map from Mills and Holeck 2001; Larval goby illustration from Lesslie and Timmins 2004

(Photo Credit: S. Olenin)

http://www.illinoissmallmouthalliance.com/goby.html

Bioaccumulation of Toxins

http://sgnis.org/publicat/slide/RG-S10.jpg

Aggressive Tendencies Voracious

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

42% (1,369 km) identified as suitable(7% of state)

44% (8,878 km) identified as suitable

Where Will Round Goby Invade Next?

2009 Enclosure Experiment

Preliminary Results

Questions

1. Fish Growth

2. Invertebrate Diversity and Abundance

3. Periphyton biomass

Treatments

p<0.001

% Change in Fish Weight

% Change in Fish Weight

p=0.01

(0.008 for A-B comparison)

% Change in Fish Weight

p=0.05

(0.07 for A-B Comparison)

% Change in Fish Weight

p=0.004

(0.009 for A-B Comparison)

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