Beau April 26th, 2007
More rain today, but it gave me a chance to catch up inside. I did explore a little outdoors between showers… I can’t hardly stay inside during Spring. The pond has a greenish coloration now- it’s a healthy mild bloom of phytoplankton, or microscopic algae that grow with the increased sunlight and warming temperatures. The phytoplankton are important to the pond’s ecosystem not only for producing oxygen while consuming carbon dioxide, but also as part of the food chain. Everything eats something else, and to maintain a healthy fish population it must begin with the smallest living things. Sometimes the pond will develop a bloom of filamentous algae- the green stringy algae. Filamentous algae is not desirable and can be difficult to eradicate. If there are too many nutrients such as nitrogen and phosphorous entering the pond from drainage or runoff of fertilized fields, then filamentous algae may bloom excessively. So far this year there is very little of the filamentous algae which is great. But it probably will come in a month or so- we’ll just have to see how much we get this year. I stocked both Grass Carp and Koi last year in an effort to help control pond vegetation.
I found another species of violet- this one is Viola pedata, or Birdfoot Violet. The flower is slightly wilted already, but it’s neat to see the slender leaves of this species.
I tried to identify this species but was unable so far. It is about dime sized, with red stems- an interesting flower. It’s the only one I’ve seen of this species so far.