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Egg
and Larval Sampling in the Spring
From
previous visual observations, public reports and tracking
of radio tagged fish, researchers had become aware of an apparent
annual “gathering” of sturgeon near Vanderhoof. Because of
the timing of this event, it was suspected to be related to
spawning activity. In the spring of 2004, researchers monitored
the tagged fish in the Nechako with overview flights and observed
a movement of several fish to the expected area. Visual observations
indicated up to 30 or more adult sturgeon were present and
spawning activity was observed. Researchers deployed equipment
to collect sturgeon eggs and larvae a short distance downstream
of this area. Several sturgeon eggs and a sturgeon larva were
subsequently captured.
This
information has provided the Recovery Initiative researchers
with much needed information. We now know that spawing can
occur successful.
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