Advanced aquatic ecology
18 important questions on Advanced aquatic ecology
Lake Nyos, a meromictic crater lake in Cameroon is one of only three known exploding lakes to be saturated with carbon dioxide, caused by a volcanic underlayer. On August 21, 1986, possibly as the result of a landslide, Lake Nyos suddenly emitted a large cloud of CO2, which suffocated 1,700 people and 3,500 livestock in nearby towns and villages. Explain what happens using your knowledge of watersystems and stratification in particular.
Considering water-sediment relations: would you call the sediment a sink or a source of nutrients? Explain?
in anaerobic situations, a turn-over will form. This will distribute the phosphate.
What effect does deforestation have in the catchment of a certain river has on the hydrograph?
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
For my 1st exam I got a C. Then, I started looking for ways to learn better and I came across Study Smart. Since then I have scored a A+, A, A- and another A. I highly recommend it to everyone who wants to hear it. I am so happy with it!!
I was struggling to finish all my first-year subjects for 3 years. Then I discovered Study Smart, which helped me to finish all of them within 3 months.
Because of StudySmart, things are going well in many ways. Before, I always had study stress and no time for anything. Now I feel calm and confident (because of the program). I used to score a B, now I usually score an A or A+.
Hey Chris, I really want to thank you very much for developing the platform, I usually got around C for my exams, now I scored an A+, an A and a A- !!
Since using Study Smart, my average has increased significantly. I even completed a statistics course with a A+ while I'm bad at statistics. I took on extra courses this year, because of Study Smart. Thanks so much!
Ever since I started studying with StudySmart I passed all my exams !!! No more re-sits!! At first, I was happy with a pass and now I only get good grades. Many thanks!
I aced all the courses I studied with Study Smart. For law, I first scored a D, and now an A! I’m 100% sure that I’ll pass all the courses I study with Study Smart.
I always thought I studied well. My grades were fine. I could never have imagined that applying these study skills would have such a huge and direct impact on my grades, my speed and the pleasure I have in learning.
For the first time, I finally feel totally confident about the way I learn. I have the perfect overview and make great progress in terms of speed and the grades I get. Thanks, Chris!
I immediately started to enjoy learning again, and my grades soared. All of a sudden, everything went better. I highly recommend Study Smart to all students..
Being able to create my materials online made the process of studying so much smoother and quicker. I no longer have to spend a huge amount of my time on creating my summaries.
At first, my notes were a mess. Now I use Study Smart to take my notes in a perfectly structured way. It helps me to save a lot of time and do other things I enjoy.
Students that study with Study Smart get better grades. The system applies all the learning methods in such a way that both well-performing students and students who struggle perform much better.
Hi Chris, I would like to thank you very much. Last year I scored C on a course, and this year I got an A+ thanks to your method! Thank you very much!
The largest effect is that my child is more enthusiastic about school! Every parent wants their children to be happy at school, Study Smart made it happen.
In high school, I failed several exams, and that has really changed now. I actually needed this tool very much back then. Since I started studying with StudySmart, I haven't had any D's. My average score is now an A and those are results I would have never had in the past
With my old method, I passed only 3 out of 8 courses. Since I started taking my notes digitally in Study Smart, I have passed all my courses on the first try. For me, StudySmart takes away the stress of wondering if I will pass or not.
Thanks to StudySmart, I passed all my exams, and with better grades than before! On top of that, I have mastered a very good study method now, which I am confident will help me earn my degree.
What will a very low EC value tell me about the origin of the water? (in the Netherlands)
Will pine trees make a river get a low or high pH? and how does that cause the environment to eventually build up with aluminum?
The higher the water quality, the higher the EPT index. Is this correct?
What does DOM stand for?
What does DOC stand for?
Explain why freshwater-life is harder than living in the oceans.
saltwater (oceans) organisms are more stable because they had more time to adapt (oceans are older).
freshwater organisms have more problems to keep their osmotic regulation in balance. (they can not throw away too much salt).
saltwater has a more stable pH level
freshwater has more habitats.
How are organisms adapted to water?
Plants came from the ocean and adapted to land and went back to the ocean. Tell something about water plants when it comes to characteristics.
they don't have a cuticula since this makes it harder to let diffusion do its work. (or the cuticula is thinner)
Stomata are different, water plants have these mostly on top. Land plants are always on the bottom of a leaf.
flowering (bloei) takes place above water in order to increase dispersion (by insects)
What are some disadvantages of living underwater, and what happens when organisms live in freshwater?
freshwater has these problems too, but has 2 more problems like: hypo-osmotic (so organisms store more salt in their body, otherwise water will flow out of their bodies), a lack of salt can lead to dehydration
freshwater is also more unstable, it can change easily.
Why are saltwater lobsters bigger?
Which animal (freshwater- or saltwater lobster) would have a lower reproductive investment?
Why do freshwater species take care of their offspring and marine species do not?
Why do freshwater species have to compete for oxygen, and marine species not necessarily?
Why is it important that freshwater species can disperse?
threatened by extinction by predation or competition (the area is to dangerous, so they have to leave)
their own activities have altered their local surroundings unfavourable (their surroundings are not liveable anymore)
Why is the species-richness further from the poles higher?
Also in tropical regime a stable habitat provides predictable abundant food and has many species specialized in food, reproduction and location.
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
