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I found this interesting article about wildfires and its effects on water chemistry.
The effects of wildfire on the water chemistry of dilute, acidic lakes in southern Norway
Summary
The most severe chemical conditions in wildfire affected surface waters occurred during some of the first post-fire rain events, but the amount of rain in relation to the hydrological status of the catchment prior to these events, and lake residence time, are decisive factors regarding when the most extreme water chemical conditions arise in surface waters affected by wildfire.
During the first post-fire hydrological episodes, strong acid anions as Cl− but primarily SO4 2−, are mobilized significantly faster from terrestrial to aquatic systems compared with base cations (ΣBC), which means that the acid neutralizing capacity (ANC) of lakes decline. For lakes with low pre-fire ANC values, significant drops in ANC down to very low negative values might occur, with subsequent increase in [H+] and toxic inorganic Al [Ali] to levels potentially harmful to aquatic life. In lakes with higher pre-fire ANC values, the drop in ANC during the first post-fire period is too small to cause severe acidification, and therefore harmless to aquatic life. Normal ANC values seem to be reestablished relatively fast in wildfire affected lakes, often within the first post-fire year.
After the extreme, post-fire water chemical peak, the main mobile anions (Cl− and SO4 2−) decreased faster than ΣBC. This combined with increase in TOC should imply a potential increase in ANC with time after fire in wildfire affected lakes. However, at the same time, the continuous dilution effect back to pre-fire levels, might counteract this potential ANC increase. This might explain why no ANC increase was seen in five of the six wildfire affected lakes, from one year after the fire and the next three post-fire years.
Increases in nutrients, N and P, and decreases in TOC in surface water during the initial post-fire period, followed by a gradual decrease in N and P and increase in TOC during the next post-fire years, have also been seen in surface waters from other wildfire impacted areas.
The water chemistry in the wildfire affected lakes in the Mykland area, had almost returned to pre-fire conditions 4.5 years after the wildfire. Thus, in this area of Norway, with significant reductions in acid deposition during the last decades, with [SO4*] reduction by 75–88 % in lakes from 1980 to 2011 (Schartau 2012), the most severe water chemical episodes, are again primarily driven by sea-salt events, directly linked to hydrologic episodes, directly as a result of heavy rain, or indirectly during snow melt as the sea-salt episode(s) are “accumulated” in the snowpack.
Hydrological regime, topography, geology, fire intensity, fraction of catchment burnt, lake morphometric conditions such as catchment-to-lake area ratio and lake residence time, are key factors for the variations in water chemical response in wildfire affected lakes.
Nice fish Garrett.
If you’re in the Seattle area, you should stop by and checkout a Hi-Laker or TrailBlazer meeting. Both meet on a monthly basis. PM me for details.
-Rich
If you want a printed map, Pargeter maps are really nice.
http://www.metskers.com/24745/239613/Pargeter-Maps/North-Central-Cascades-by-Pargeter.html
I second the vote for the DeLorme Inreach. I used it successfully last season on a trip to the Frank Church in Idaho. Good battery life too. You can turn off your subscription plan in the winter months.
-R
I was up at Ross Lake with my son this weekend and was thinking how nice it will be to have fish back in Ridley and Willow again.
Rich
So Brian/Ken – remind me again of what this means if the bill goes through ? Is this what the NCNP said they needed in order to resume stocking ?
I just pulled a summary of the bill below North Cascades National Park Service Complex Fish Stocking Act – Directs the Secretary of the Interior to authorize the stocking of fish in lakes in the North Cascades National Park, Ross Lake National Recreation Area, and Lake Chelan National Recreation Area (the North Cascades National Park Service Complex).
Authorizes the Secretary to allow stocking in not more than 42 of the 91 lakes which have historically been stocked with fish.
Requires the Secretary to stock only fish that are: (1) native to the slope of the Cascade Range on which the lake to be stocked is located; and (2) non-reproducing, as identified in management alternative B of the North Cascades National Park Service Complex Mountain Lakes Fishery Management Plan and Environmental Impact Statement (June 2008).
Instructs the Secretary to take into consideration relevant scientific information, including such plan and the information gathered under the research and monitoring program specified below, in making fish stocking decisions under this Act.
Requires the Secretary to coordinate the stocking of fish with the state of Washington.
Requires the Secretary to continue, and report to Congress on, a program of research and monitoring of the impacts of fish stocking on the resources of the applicable unit of the North Cascades National Park Service Complex
Nice fish. Look at the kype on that sucker (the fish, not Leif).
That Leif really gets around. I need to replace the battery in the GPS locator device that I sewed in his backpack a few years ago.
~Rich
Some are open year round but others are considered beaver ponds and close Nov 1. You need to check the regs on the WDFW website.
Try this book:
http://www.amazon.com/Spinner-Fishing-Steelhead-Salmon-Trout/dp/0936608404It will change your views of spinner fishing forever and soon you will be making your own spinnners. And yes, slower is better for retrieval as long as you keep the blade spinning.
@caveman wrote:
Just wondering why it is not available to the public? Doesn’t our tax dollars pay for the fish to have stocked, so shouldn’t we have the right to know what lakes are getting stocked?
Thanks,
Adam
The Trailblazer database is just a collection of the stocking data already available out on the WDFW website. It’s just better organized. There’s nothing stopping anyone from building their own stocking database with what’s already available here:
http://wdfw.wa.gov/fish/plants/
