2020 Kitwanga River Salmon Smolt Assessment
The purpose of the program is to enumerate sockeye and coho salmon smolts, and other resident trout and char species migrating out of Gitanyow Lake and the upper Kitwanga Watershed. In 2020, the facility was operated from April 14th to July 7th. The sockeye smolt emigration was estimated at 23,753 fish in 2020, which is the highest count through the KsF since 2014 (n=33,423). Through scale analysis, it was determined that almost all of the smolts were 1-year-old fish (99.8%), which is similar to previous years. Average smolt length and weights were 107.4mm and 12.4g respectively, which were higher than the long term average of 106.8mm and 11.9g. Production estimates for Gitanyow Lake sockeye in 2020 was 83 smolts per female spawner (most originating from the 2018 broodyear). Almost all (99%) of the sockeye smolts migrated through the weir between April 30th – May 13th, 2020 with a peak count of 8,471 on the night of May the 6th. This was in line with previous years when peak runs generally occur in the 1st or 2nd week of May.
Papildus informācija
| Lauks | Vērtība |
|---|---|
| Pēdējo reizi mainīts | 2022. gada 4. jūlijs |
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