Cliff Stephens Park in the early morning.
We all split up into groups and rotated to different "stations" where we worked with different tools. Our group worked with beans which represented a species. We learned how to capture, tag, release and recapture to measure a species' population.
We marked our captured beans with a dot the first capture, in order to identify them later.
We moved on to the lake and measure water salinity, temperature, PH balance, and turbidity by using an assortment of tools. We took several samples from different spots along the pier and noted the differences in our journals.
The ladies collect water from the lake using a drift net.
I check for water salinity by looking through this refractometer.
Lake water we scooped up.
We moved to an open area where we ran to transect lines in order to record plants and animals present. There were no animals. Just a lot of grass and weeds. However, we recorded those. We dropped a pin flag every ten meters along the first transect line, and used a quadrat along the other.
Using a quadrat and pin flag along a transect line.
Out of the sun, finally, we moved on to the welcome shade of the trees and examined the size of the surrounding trees, and the canopy above.
Looking up to see how much tree cover we have. The densitometer is needed.
Measuring the tree size using this cruz-all.
We took a soil sample to examine the texture. We decided it was loam sand. It was gritty and not smooth at all.
Finally, our group recorded the DBH of the nearest trees along a transect line by measuring around the trunk. The thickest tree measured 2.75 m around.
We had a long, hot and productive trip. Now hopefully we will all pass our test! Bye for now!
No comments:
Post a Comment