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During
the spring of 2000, 10 walleye were radio-tagged
and tracked in Delta Marsh. Compared to
1999 numbers, (22 walleye, six carp), fewer
fish were tagged in 2000 so we could spend
more time tracking individual fish. Fish
were captured between April 24 and May 15
at three different sites (Clandeboye Channel,
the south side of Clandeboye Bay at Waterhen
Creek, and Waterhen Bay). All fish tagged
were female. Although we were particularly
interested in tagging ripe females, we had
difficulty finding female walleye in the
marsh. The majority of walleye captured
early in the spring were males. We did tag
2 ripe (containing eggs) females, the remainder
had already released their eggs when captured.
Number of days individual fish were tracked
in the marsh ranged from 1 day to 28 days.
As was found in 1999, fish moved during
the daylight hours in the marsh, but only
returned to the lake through Clandeboye
Channel during the night. The last of our
tagged fish left the marsh on June 14.
One
walleye (149.010)
moved farther into the marsh than any other
walleye we have tracked. Three days after
it was released in Clandeboye Bay, it had
moved about 7km into East Bluebill Bay.
This fish then spent the next 2 weeks moving
back through the marsh and out into Lake
Manitoba. This year we observed considerable
use of Waterhen Creek (between Clandeboye
Bay and Waterhen Bay) and also much greater
use of Waterhen Bay. There were also more
sightings throughout Clandeboye Bay as well.
Also, two fish (149.040
and 149.100)
entered Clandeboye Channel as though they
were leaving the marsh, but returned to
the marsh and left at a later date.
Tracking
Data of Walleye
Select a link below to
download an Acrobat® PDF file of walleye
tracking data.
2000
summary of walleye positions.
(Acrobat®
PDF: 130K/1 page)
In 2000 we
found much greater use of Waterhen Bay
than the previous year. There was also
much greater use of the rest Clandeboye
Bay. One fish (149.010) moved further
into the marsh (East Bluebill Bay) than
any other walleye we have tracked.
Walleye
149.010 (Acrobat®
PDF: 187K/2 pages)
Our first
fish tagged was a ripe female still full
of eggs. This fish moved more than any
other walleye we tagged. Three days after
being tagged it had moved about 7km into
the marsh.
Walleye
149.020 (Acrobat®
PDF: 115K/1 page)
This fish was also
a ripe female full of eggs. It remained
in Clandeboye Bay for 2 days following
release, but then disappeared. Extensive
searches of the east side of Delta Marsh
failed to find it. Three days after it
disappeared it was found in Waterhen Creek
heading towards Clandeboye Bay. Two and
a half hours later it was in Clandeboye
Channel and it swam back out into Lake
Manitoba.
Walleye
149.030 (Acrobat®
PDF: 114K/1 page)
A spent female,
this fish was caught at the Clandeboye
side of Waterhen Creek. It spent the next
few days at the Waterhen Bay side of the
creek before returning to Lake Manitoba,
4 days after it was tagged.
Walleye
149.040 (Acrobat®
PDF: 117K/1 page)
Another spent female
that was caught at Waterhen Creek. This
fish spent about 15 days in Waterhen Bay.
It then entered Clandeboye Channel on
18 May at 4am, but returned to Clandeboye
Bay for the remainder of the day before
finally leaving the marsh at 11:30pm.
-
Walleye
149.050 (Acrobat®
PDF: 115K/1 page)
A third spent
female caught at Waterhen Creek. This
fish spent the next 5 days in Waterhen
Bay before leaving the marsh on the 8
May at 1am.
Walleye
149.060 (Acrobat®
PDF: 115K/1 page)
This fish
as also caught at Waterhen Creek and followed
a similar movement pattern as seen in
the other 3 fish caught at the same time.
Following release it moved down Waterhen
Creek into Waterhen Bay. It remained there
for 3 days before returning to Clandeboye
Bay and then back out into Lake Manitoba.
Walleye
149.070 (Acrobat®
PDF: 113K/1 page)
This
female was caught at Clandeboye Channel
and was only tracked for one full day
in the marsh before it returned to Lake
Manitoba.
Walleye
149.080 (Acrobat®
PDF: 114K/1 page)
This female was also
caught in Clandeboye Channel. It spent
most of its time in the southeast corner
of Clandeboye Bay. This fish had a movement
pattern that was very similar to fish
tracked in 1999. We tracked this fish
for 14 days in the marsh before it returned
to Lake Manitoba on 22 May.
Walleye
149.090 (Acrobat®
PDF: 114K/1 page)
This fish
was caught and released in Waterhen Bay.
Following release it spent about six days
in Waterhen Bay and then moved up into
Clandeboye Bay, where it spent about 10
days before returning to Lake Manitoba
on 31 May.
Walleye
149.100 (Acrobat®
PDF: 117K/1 page)
This
fish was also caught and released in Waterhen
Bay. It spent the first two weeks after
release in this bay. On the night of 3
June it was picked up by our fixed monitoring
station in Clandeboye Channel. It did
not move into Lake Manitoba but instead
returned to Delta Marsh. It made several
trips between Clandeboye and Waterhen
Bays over the next two weeks before returning
to Lake Manitoba on 14 June.
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