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I remember seeing that, not the data involved.
All my samples came from around Niigata and the water was mostly what we would call "soft". Hence the widespread use of oyster shells, egg shells and hydrated lime in the area.
Backbreaking work still going on, just too darn hot to be outside all day. When it gets like this, I look for excuses to stay in front of this box!
Dummy I am, though, I should be outside now and inside about 3 this afternoon. Got my workers at the farm this morning feeding the fish and such. In the summer, if the females aren;t fed by 8 am, they ain;t comin' up to eat. They stay below the thermocline in the summer, in 80 to 85 degree water. By noon, the water on the surface approaches 100 degrees. Measured a water temp last summer of 97! That was about 6 inches deep. Three feet below that the water was about 84. Much more comfortable for the koi closer to the bottom in such cases.
The males, two year olds, and young of the year don;t care how hot it gets, they stay hungry and ready to eat. However, its bad for them to come into the hot water then go right back into the cooler water in the afternoons. Hence feeding early before the water heats up and stratifies.
My chore for this morning...get some kind of tool that can be used to extract whatever it is in the Kubota's fuel tank that keeps stopping it up and stopping the tractor. My helper says, "Its a big peice of plastic in there and I can;t reach it with a fishhook extractor."
Brett
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Brett
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