Pond Boss Forums INTRO Questions & Observations Weekly Observations

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I probably should know better than to admit this publicly, but I did see Canned Heat as the opening act for a Steppenwolf concert back when I was in college. Also, it was darn good.

P.S. Dwight: have we stuck with the original content for this thread?

With Weekly readings, I can steer it back every week.

Dark Water 07 01 Update

All is well on Bremer Pond! Your LMB should be putting on the feedbag!

It looks like all the lines are heading to a single point where we can expect a creation event - like a 10 lb LMB.

Convergence?

An event of epic proportions.

Big changes in the D.O. this week, though still at about 90% of saturation

Updated Weekly

You can see the result of the plankton (reduction in clarity) and bottom BOD on the DOs including the start of stratification (bottom DOs dropping much faster than top DOs). Thanks again Dwight.

Interesting turn of events.
Weekly Update

Yes, that is an interesting little increase in oxygen. One overview point, though, is that you still are at 8 ppm for dissolved oxygen in the middle of summer. No water quality problems for you!!

What a great place for rapid summer fish growth. Temps 73 to 76 with DOs from 8.1 to 8.9. What do you think caused the increase in DOs at depth (ground water inflow , increased plankton , wind , circulator or other) ?

SO have air temps been cooler as well? STarange cooler in mid July than late June. Sorry have not followed closely you aeration running right?

There has been enough rain to raise the ground water level and increase the ground water in-flow. It has been windy and the air temperatures have been down.

The circulator isn’t used in the open water period. It is only used in the winter to keep the water open around the dock/barge; no aeration.

I returned from our week long family fishing trip and once unloaded, I proceeded to do the Updated Weekly.

Looks like your plankton is in reduction mode.

It looks like the plankton are at it again!

Updated Weekly

Better break out the glow in the dark buzzbaits!!

Dwight -- do you get any blue-greens in midsummer, or is this the green algae again?

There has been blue green some summers when the temperatures are more normal(warmer). It is green again.

75 looks like a magic Temp. That is a big visibility change in a week with no temp change. What else happened? Rain , wind , lots of sun after a few cloudy days ? How about a pic of the water?

Updated Weekly

The weather has been pretty much stable this past week.

Why does the clarity change so much week to week:
Ground water flow increases and decreases?
Clear sunny days increase plant oxygen production?
Plankton mini-blooms occurring rapidly over a short time span?
None of the above?
All of the above?
Some other reason?

Why take weekly readings that raise all these questions?

Interesting - light penetration went up so plankton production of O2 at depth went up while surface O2 stayed the same.

"Why does the clarity change so much week to week:
Ground water flow increases and decreases?
Clear sunny days increase plant oxygen production?
Plankton mini-blooms occurring rapidly over a short time span?
None of the above?
All of the above?
Some other reason?"

All of the above and other reasons , wind , predation by fish on plankton , increase/decrease in nutrients , plankton cycle timing.

As the clarity continues to increase the bottom D.O. is tracking right along with it. Higher temperatures at mid-range depth and at the surface cause a slight dip in the D. O. at those depths.

We are having the warmest air and water temperatures of the summer, currently. It is the perfect time for bottom D.O. to be increasing though I imagine that is quite a rare occurrence for most ponds.

Updated Weekly