salinity
I chose to experiment with the effects of salinity changes on the polychaete, Nereis succinea. Along with the other members of the group, Patty and Jeremy, I was curious to see whether the worms would engage in adaptive behavior when placed in a tank of water of foreign salinity, or whether they would simply continue changing osmotically until they reached equilibrium with the environment. The first step in our experiment was to simply observe the worms and get a “feel” for the ways in which they act. We did this on Wednesday, May 7, 1997 from 9:30am to 10:30am. Also on this day we learned how to mix and measure salinity, practiced weighing the worms, and deciding our exact schedule as far as when we would come in and for how long, etc. From what I observed, the polychaete is a salt-water worm that has adapted to live in estuaries. We kept the control tank at 20 parts per thousand to 24 parts per thousand, and the worms seemed very content and healthy at that level. The worms on which we experimented ranged in size from approximately four inches to approximately six inches. They weighed from 1.8 grams to 4.6 grams at the beginning of the experiment. They have a pinkish, almost salmon color to them, and on two opposite si
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Some common words found in the essay are:
Jenny Dopey, Patty Jeremy, Boris Jenny, , Louie Pedro, salinity worms, equilibrium reached, reached equilibrium, thousand worms, low salinity, jenny dopey, change salinity, ten thousand, 24 thousand, control tank, looked reached equilibrium, decreased 11 grams, entire length bodies, decreased one-tenth gram, 32 thousand worms,
Approximate Word count = 1969
Approximate Pages = 8 (250 words per page double spaced)
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