First University Lake Field Trip
On the second lab of the semester (Sept.
8) each lab will travel out to
University Lake in IU vehicles. The purpose of this lab is to conduct a thorough
vertical analysis of water characteristics over the area of the lake's maximum depth
(Zmax= 35 feet) while
the lake is still under summer thermal stratification. We will be working from
row boats and canoes so great care will be necessary
to keep the canoes stable as we sample.
We will collect physical data (temperature, light transmittance,
Secchi disk transparency, turbidity); chemical data (dissolved oxygen, soluble reactive
phosphorus, total phosphorus, nitrate-nitrogen, ammonia-nitrogen, organic nitrogen, pH,
alkalinity, and conductivity); and biological data (plankton, chlorophyll a, and
benthic macroinvertebrates).
Students will be assigned specific tasks to complete both in the
field and in the laboratory.
Dress appropriately for the field. If it is a hot, sunny day -
bring sunscreen and fluids. If it looks like rain - a rain coat would be
appropriate.
Upon returning to the lab, students will analyze collected samples
for: pH, alkalinity, turbidity, and soluble reactive phosphorus. Other laboratory
duties include filtering nitrate/ammonia samples and beginning the total phosphorus
digestion.
Data from the 1st University
Lake Trip-
.
Graph and interpret data that are in bold characters.
Plankton data from 1st University Lake
Trip -
. Here are the plankton data from the first
University Lake trip. They are
in an M.S. Excel file. Those taxa and data series that you need to graph
are indicated by BOLD type. Additional instructions for this
assignment are in this M.S. Word file:
