Lake Core Investigation Kari Nicole Taylor

Question: Which one has more diatoms the top, or the bottom of the big core sample?

Data:














Findings:

Claim: The bottom of the croe sample has more diatoms.

Evidence: The bottom had 52 diatoms total. The top had 13 diatoms total. Which means that the bottom has 39 more diatoms than the top.

Lake Core Investigation by Blake and Katie

Question: How have the species of diatoms changed from the bottom to top?

Data:

Findings:

Claim: A lot of the species of diatoms have changed from the bottom to top.

Evidence: We found out that there are two common diatoms for top and bottom. for the top the two common diatoms are Navicula and Pinnularia, for the bottom the two common diatoms are Gyrosigma and Fragellria.

Lake Core Investigation by Grant, Jayme, Jarret

Question: Did the diatoms change more before or after the drought?

Data:

Claim: There was a bunch of different types after the drought then before the drought.

Evidence: Before the drought there were just 2 types of diatoms, phyum class genus and a Navicula. But after the drought we found 5 types of diatoms a phyum class genus, Asterionella formosa, Melosiera, synedro, and a Gyrosigma

Lake Core Investigation by: Katie Cornish, Kendra, Monte

Question: How many types (that were found) diatoms are found in the old part vs. the young part?

Data:

Claim: We found out that there are more diatoms in the old part than the young part.

Evidence: There were 8 diatoms in the old part, including a possible unknown. In the young part there were 5 diatoms.

Diatom Investigation by: Logan and Isaac

Question: What is the most common diatom we will find between top(youngest) and bottom(oldest)?

Data: slide #1 top(youngest): asterionella and melosira. slide #2 top(youngest): melosira. slide #3 bottom(oldest): meridon and melosira. slide #4 bottom(oldest): melosira and tabellaria.

Finding: We found more diatoms on the top soil then the bottom. Claim: We found alot of asterionella class on the top then the bottom. Asterionella class had 2 times more than all of the other diatoms. We found melosira in every slide. We only found tabellaria on the bottom slide.

Lake Core Investigation~Sam, Jordan, Kristina and Nic

Question: What's the difference between diatoms at the top of the core and at the bottom of the core?
Findings: Claim~We found that the diatoms in the bottom of the core are usually longer than the diatoms in the top. Evidence~Most of the diatoms in the top were shorter than the diatoms in the bottom.

Lake Core Investigation, By : Sarah, MaKayla, and Kaitlyn

Question: What is the difference between the types of diatoms between the two different cores?

Findings: Claim: There is different types of diatoms between the two cores except the middle of core one and the top of core two. The diatoms name is Asterionella formasa.

Evidence: The core types for core one are Navicula(top), Fragilaria capucina(bottom), and asterionella formosa(middle). And the core typed for number two are Asterionella formosa(top), Aulacoseira(bottom) and Gyrosigma(middle).

Data: