Pond Management

We have made great strides in cleaning up our water features on the course in the last year or two.  Last year our ponds and retention areas were the best that I have ever seen them look.  This year we have only 1 pond that has been giving us a headache, #12.  I was very optimistic that our management strategies from last year would carry over into this year, but that was not the case.  The algae blooms started coming out in late June because the temperatures have been so (I want to say mild but the correct terminology would be average) average.  In a hotter year i.e. 2012 the blooms would have started in April or May.  

Last year we used Red belly Tilapia as out control method for Algae on #11, 12, 13 and 18.  It worked great so we are doing the same this season, only on #12.  Here is a picture of what they look like.

 

 We purchased 30 lbs of fish for the pond.  They were delivered in a mobile aquarium.  It was essentially a very large ice chest with a hose running from the cooler to an oxygen tank similar to a helium tank that you might see at a party supply store.  Seen below.

Adding the fish to the pond is a very manual operation.  Scoop them out with a net, load them in a laundry bucket and dump them in the pond.  Seen below.

This pond is actually more of a retention area.  It's only about 4 feet deep and has a rock floor under the sludge on the bottom.  (We found this out when we were installing Wood Duck houses in the area.  It's hard to drive a post into rock!)  The pond being large and shallow means that it is easier for light to penetrate to the floor of the pond where algae blooms with light sources.  When we sprayed chemicals in the past to control the algae it did kill the algae.  But, as it decomposed and sank it was converted to a food source(fertilizer for the blooming algae, so it actually magnified the problem.  

It seems like the fish are the best method of control that we have found yet, and it reduces our chemical usage. 

There is a downside to this method of control.  The fish die.  They are warm water fish.  when we get a massive cold rain in November they will start floating, and there will be a lot more than 30 lbs worth.  I think that the trade off of smelly fish for 1 week is worth the clean ponds for the summer.

Please remember that we do not want any fishing in the ponds on the golf course.  there is effluent water in every pond on the course and are not meant for swimming or fishing.