GLG
Well-Known Member
Hello Rover. I think you are bang on with your last post. imo dfo does a pretty good job forecasting returns with the tools available.
There seems to be a gap in knowledge with the outmigration and transition to sea phase for salmonids. I personally observed coast wide depopulation of macro invertebrates which explains the low s/h productivity. There is no recognition of this yet. Do you know of any long term plankton sampling that could be used to compare with sockeye and pink abundance trends? I've tried googling it and keep getting lost in many other interesting reports that don't have consistent or recent data. After a couple hours of searching and reading my back is sore and frustration kicks in. I am curious to know if there was healthy abundance of plankton flowing down the Thompson and Fraser during the out migration years of this years returns? If you or anyone else knows of this info please direct me to it. Thank you.
Not sure if you have been to this website but it is choked full of info. Don't know if it will help you but it's has a bunch of info that may give you some leads. I spent many hours reading so I could get up to speed on the Thompson.
https://www.fraserbasin.bc.ca/tr.html