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Author Topic: Freshet 2020 ain't over  (Read 2602 times)

Dave

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Re: Freshet 2020 ain't over
« Reply #15 on: July 08, 2020, 01:56:07 PM »

Late run sockeye tend to hold off the Fraser but other stocks have a more defined migration timing. High water also adds extra stress hormones which can cause prespawning mortality.  Bad year to be an early returning Fraser salmon
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avid angler

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Re: Freshet 2020 ain't over
« Reply #16 on: July 08, 2020, 10:28:20 PM »

What happened in the 70s and 80s when we had large snowpacks almost every year? Also does the Fraser get too high for the hells gate fish ladder to work? I can remember many years where the Fraser was above 9000cms for weeks at a time during freshet.
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stsfisher

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Re: Freshet 2020 ain't over
« Reply #17 on: July 09, 2020, 06:11:50 AM »

What happened in the 70s and 80s when we had large snowpacks almost every year? Also does the Fraser get too high for the hells gate fish ladder to work? I can remember many years where the Fraser was above 9000cms for weeks at a time during freshet.

we didn't have devastating tree loss from forestry and now even worse the fires. Nothing to hold anything back.
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jim

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Re: Freshet 2020 ain't over
« Reply #18 on: July 10, 2020, 07:53:32 AM »

I wonder if the springs, or what's left of them, would school around in front of the park in Hope B.C.
Seems to me to be the most likely spot for them to wait for the velocity to lower.
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wildmanyeah

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Re: Freshet 2020 ain't over
« Reply #19 on: July 10, 2020, 09:21:30 AM »

This data is from last year but it shows what the historical mean is.  https://www.pac.dfo-mpo.gc.ca/science/habitat/frw-rfo/reports-rapports/2019/2019-06-28/index-eng.html

this year is far from a normal mean.  To be in the 10k cms july 7th and over 9k on july 10 is really abnormal. 

This year is above the 1/20 year range, meaning If you are 100 years old you would of seen this happen 5 times in your life (At this exact time of year).  The 9k rage is more common in June.
« Last Edit: July 10, 2020, 09:35:02 AM by wildmanyeah »
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