As most of you know, we've lost quite a few trout on the 10th hole this summer, particularly the last 3 weeks. Here are facts to consider as I've heard quite a bit of misinformation being passed around.
Rainbow trout are very temperamental when it comes to their habitat. Brook trout in particular are considered environmental indicators because even the slightest change in their environment, will lead to death. Fortunately, rainbows are slightly more tolerable of changes but their ideal habitat consists of running water, well oxygenated in the 55-61*F range. While they can and do live in lakes and ponds, this is not ideal. Also, our water temperatures range from 75-80*F right now.
As water temperature increases, dissolved oxygen decreases. Simply put, our fish are suffocating right now.
The dam repair project above the 10th hole has contributed to the problem. On several occasions, water was completely cut off, making the creek go dry. When the valve was or is open, the water is murky and turbid. This isn't the fault of the contractor but let's be honest: winter is the better time for work like this.
We did open the irrigation drain valve to supply more water to the creek. This helps but we are just circulating 80* water. I get about 3-5 calls a day about an irrigation break in the 10th creek.
We did add 2 air diffusers to the pond on the 10th hole.
Every year, we add approximately 2,600 fish to Swan Lake. We are losing about 20-30 fish a day. That said, it is not a majority of our fish. Some exaggerate by saying, "all fish are dying." There are some that have sought deeper water by the dam. Not all the fish- not even 1/5th of our fish are dying.
I recently heard a member ask, "why can't Brian's crew collect the dead fish?" The answer is, we do, 2x a day. First thing in the morning and once at night. However, I don't have the time and labor to spend on having someone paddle a boat around.
This is going to continue until we get more rain. Through June 1st, we haven't had 1" of rain. Consider how critical this is in an area that averages as much as 10" a month!
Every year, to some degree, the fish hang out at the mouth of 10 pond. This year is severe. It may be worth considering another species of fish like bass, that are better suited for warm water. Putting trout in our ponds is rather inhumane. Would you put your dog in a car that is 140*F inside...and then wonder why it's behaving differently??
Finally, there isn't anything that we can do (that we aren't already doing like the opening irrigation drain valve and installing air diffusers) to fix this. It's in the hands of Mother Nature, unfortunately. Short of a massive, commercial ice maker, I don't know what else there is.
Hopefully, our normal weather patterns will fall back into place and we can get some cool rains to restore water flow and drop the temperature.
Your patience is much appreciated.
Sent from my iPhone