answer

watching

views

6 May 2018

An aquatic pesticide is oberved to be more effective in oligotrophic lake than in an eutrophic lake. Using Kow, rationalize why this would be the case.

answer

watching

143

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Nelly StrackeLv2

8 May 2018

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

The western shore of lake Michigan often experiences a much greater range of high and low temperatures during the four seasons than lake Michiganâs eastern shore. Lake Michigan is an oligotrophic system that rarely freezes. Explain the difference in the range of maximum and minimum temperatures on the two shores. Draw a temperature profile for spring, summer, fall and winter (remembering the lake does not freeze). Explain what happens to the heat in the weather system as it passes over the lake from the western shore to the eastern shore. Also, speculate on the change in winter temperatures in a year that the lake freezes in late January (address temperatures in December, January, and February).(Hint: Basin morphology and the specific heat of water is important)

1. name two human activities that can increase the temperature of a body of water and describe how each activity would cause the change in temperature. what other WQI parameter might be affected by an increase in temperature?

2. Name at least two effects a change in temperature would have on the aquatic organisms found in a body of water?

3. What might be the cause of high levels of fecal coliform in a body of water? Though most strains of E. coli are non-pathogenic, why might a scientist be concerned by multiple "positive" fecal coliform tubes and a high calculated MPN for a sample of water?

4. a) you visit Otter Lake at 7:00am to collect water for your team's Capstone Project. While you are there, you measure the dissolved oxygen (DO) of the lake and find the DO value to be 60% saturation. On the way home, your water containers fall over and all of your water spills out. One of your teammates returns to Otter Lake at 5:00 pm to collect more water and measure the DO again but finds the DO value to be 100% saturation. How would you explain the difference in DO measurements between teammates?

b) after getting home, your teammate reviews Appendix B in the lab manual and realizes they needed to collect 7 liters of water, but only collected 3 liters. You advise your teammate to empty out the water they collected and you return to Otter Lake once again to collect all 7 liters of water. You arrive at Otter Lake at 10:00 pm and measure the dissolved oxygen. At 10:00 pm you find the DO value to be 80% saturation. How would you exolain the difference in DO measurements between teammates?

Read the article: "Rapid and highly variable warming of lake surface waters around the globe" by O Reilly

Link: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2015GL066235

1. Please describe the goals of the study. Based on your reading of

the paper, according to the authors why is this an important subject for study?

2. Briefly describe the methods used by the authors to conduct their study.

3. What were the major findings of this paper? In particular, how fast (on average) is

lake surface temperature increasing, and how does the warming rate vary among different lake

types? What lake type(s) have the fastest warming rates? Which type(s) have the slowest

warming rates?

4. In some lakes, surface water temperature is increasing faster than air temperature.

What lakes show this pattern, and what can explain how water temperature increase faster

than air temperature?

4. What do you think is the most important graphic (figure or table) in the paper, in

terms of conveying the findings of the research? Why?

5. What might be the next steps in this line of research? What kinds of additional data or studies might be

needed, after this study, to advance our understanding of how and why lake temperatures are

increasing?

Weekly leaderboard

Home

Homework Help 3,900,000

Biology 460,000

An aquatic pesticide is oberved to be more effective in oligotrophic lake than in an eutrophic lake. Using Kow, rationalize why this would be the case.

Unlock all answers

Related textbook solutions

Molecular Cell Biology

Biology: Science for Life with Physiology

Biology

Concepts of Biology

Essentials of Biology

Related questions

Related Documents

BIO 121 Lecture Notes - Lecture 31: Energy Flux, Chemosynthesis, Eutrophication

BIO 2129 Study Guide - Final Guide: Character Displacement, Allelopathy, Macrophyte

BIO SCI E179 Lecture Notes - Lecture 4: Strine, Spring Bloom, Apidae

Weekly leaderboard