and Wilcox Power Generation Group
and Graphs for Proposal
Other Writings of Mine
Size, Growth and Control of Exotic Goldfish (Crassius atratus) in a Small
Impoundment: Implications for Managing Future Invasions
Public Radio story on the Goldfish in Rock Pond
Provides excellent coverage of the Rock Pond invasion
including pictures of the goldfish.
Version of the Rock Pond Invasion
USGS Non-indigenous Aquatic
This site offers excellent information, including a searchable
database of invasions by species, state and watershed.
This goldfish was
collected from Rock Pond at the University
of Minnesota Duluth. It is by far the oldest and largest goldfish
collected, it was 5 years old, 11.5 inches long and weighed almost 1lb. The next oldest fish were all three years old, and only eight inches long.
This picture shows
the variation in color, and the rate of color change, for the goldfish in Rock
Pond. The first fish is solid orange
with long fins is 3 years old, the next four fish are 2 years old, and the last
fish is only one year old.