Tuesday, May 20, 2014

Troy Photo Run and Peebles Island May 20, 2014

This plaque on State Street in Troy marks the
spot where Charles Nalle was freed

Pictures of the Mohawk River 

A freed fish from an ephemeral pool

The fish above, one of many, was caught by bare hands today in an ephemeral pond (or vernal pool) on Peebles Island. An ephemeral pond is a collection of rain water and wind-blown sediment on soils that form tiny ecosystems. These ponds can range from a few millimeters to a few meters in depth (“National Park Service”).  The National Park Service says that organisms living in these pools have very short life cycles, as brief as ten days. What brave students in the Discovery Degree Program we have to catch these fish, with their bare hands, and set them free in the Hudson River. If the students would have left the fish to continue living in the ephemeral pond, the fish are exposed to being caught and eaten by birds, and consuming all of their source of food until there is none left. Personally, I am too afraid to hold the fish in fear that they will slip out of my hand and onto the ground that will soon lead to their death. Fish have what is called a slime coat that protects them from infectious bacteria. By looking at the hand holding the fish above, you can tell that a firm grip is the only way to prevent the fish from slipping out of your hand.  But having a natural slime coat is not the only reason why fish slip out of a firm grip. A fish breathes by taking water into its mouth and pushing it out through the gills. When the fish are exposed to the dry air, they flop in hopes of swimming and obtaining water. It was interesting, and quite amusing, to watch my fellow classmates try to hold the fish. After hearing yelps and seeing bug-eyed faces, I was sure I would not attempt to catch a fish. What a great experience it was to have a sly look on my face while my classmates are barefoot in an ephemeral pond. 
National Park Service. Ephemeral Pools (Potholes). NPS, 05/14/2014. Web, 20 May 2014

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