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In the summer of 1999, biologists
from Ducks Unlimited's Institute
for Wetland and Waterfowl Research began a
two year study tracking fish movements in Delta
Marsh, Manitoba. Delta Marsh is a historically
important marsh that has recently fallen on hard
times. Waterfowl numbers are down, the water has
become murky and cloudy, aquatic vegetation in
the water has declined in abundance while cattail
is spreading and taking over the small ponds and
shallow bays of the marsh. In 1998, we began a
study of the larger fish present in the marsh,
and found that walleye, a commercially important
species in Lake Manitoba, were using Delta Marsh.
Carp, an introduced species, dominates the fish
community and is thought to be contributing to
the decline of the marsh. In 1999 we implanted
several walleye and carp with radio transmitters
and followed their movements in the marsh. Click
here to see the results of the 1999 study.
In
2000, 10 walleye were implanted with radio transmitters.
Tracking data for these fish is available
in Adobe PDF documentation. Through this site,
we hope that you will follow our progress and
learn about walleye movements within the marsh.
Please follow the links below and to the left
to learn more about this unique study.
This
research project was made possible by a generous
contribution from a resident of Manitoba.
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