astronomy

Roxane Maranger

Roxane Maranger is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Roxane Maranger rather than just read about it. In short: Roxane Maranger is a professor at Université de Montréal and Canada Research Chair Tier I in Aquatic Ecosystem Science and Sustainability known for her research on the impact of humans on water quality in lakes. From July 2020 - July 2022, she served as the president of the Association for the Sciences of Limnology and Oceanography (ASLO).

Key takeaways

Roxane Maranger belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Roxane Maranger to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Roxane Maranger from memory before moving on to harder problems.

Reference excerpt

Roxane Maranger is a professor at Université de Montréal and Canada Research Chair Tier I in Aquatic Ecosystem Science and Sustainability known for her research on the impact of humans on water quality in lakes. From July 2020 - July 2022, she served as the president of the Association for the Sciences of Limnology and Oceanography (ASLO).

Education and career Maranger received her B.Sc. from McGill University in 1992. She moved to the Université du Québec à Montréal where she received an M.Sc. in 1995 working on viruses in sea ice and freshwater lakes. In 1999 she earned her Ph.D. from Université du Québec à Montréal where she worked on the factors controlling bacteria in lakes. Following her Ph.D. she was a postdoctoral scientist at the Cary Institute of Ecosystem Studies before she joined the faculty of the Université de Montréal in 2003. She was promoted to professor in 2015 and was awarded a Canada Research Chair Tier I in Aquatic Science and Sustainability in 2021. She served on the steering committee for French National Centre for Scientific Research, and worked to set up the Secretariat for Future Earth. From 2020 until 2022 Maranger served as the President of the Association for the Sciences of Limnology and Oceanography (ASLO).

Research Maranger is known for her research on the biogeochemistry of lakes, ecosystem ecology, and the connections between human actions and water quality. Her early research examined the role of viruses in aquatic systems in polar regions and tracked the transfer of iron from bacteria into mixotrophic phytoplankton. Maranger has examined the flux of nutrients through different pools, including quantifying the return of nutrients from the sea to land because of commercial fisheries. She has modeled the amount of phosphorus that can be absorbed by lakes, which impacts how long before ecosystems will recover from the addition of excess phosphate as fertilizer. Her research has applied a trophic state index, a metric of water quality, to assess when a water mass can meet the needs of its users. In lakes, she has examined the connection between climate warming and the form of carbon stored in a lake which has implications for how lakes will respond to future climate perturbations.

Selected publications Maranger, Roxane; Bird, David F.; Juniper, S. Kim (1994). "Viral and bacterial dynamics in Arctic sea ice during the spring algal bloom near Resolute, N.W.T., Canada". Marine Ecology Progress Series. 111 (1/2): 121–127. Bibcode:1994MEPS..111..121M. doi:10.3354/meps111121. ISSN 0171-8630. JSTOR 24847616. Maranger, R; Bird, Df (1995). "Viral abundance in aquatic systems:a comparison between marine and fresh waters". Marine Ecology Progress Series. 121: 217–226. Bibcode:1995MEPS..121..217M. doi:10.3354/meps121217. Glibert, Patricia M; Maranger, Roxane; Sobota, Daniel J; Bouwman, Lex (1 October 2014). "The Haber Bosch–harmful algal bloom (HB–HAB) link". Environmental Research Letters. 9 (10) 105001. Bibcode:2014ERL.....9j5001G. doi:10.1088/1748-9326/9/10/105001. S2CID 154724892. Harrison, John A.; Maranger, Roxane J.; Alexander, Richard B.; Giblin, Anne E.; Jacinthe, Pierre-Andre; Mayorga, Emilio; Seitzinger, Sybil P.; Sobota, Daniel J.; Wollheim, Wilfred M. (March 2009). "The regional and global significance of nitrogen removal in lakes and reservoirs". Biogeochemistry. 93 (1–2): 143–157. doi:10.1007/s10533-008-9272-x. hdl:1912/3097. S2CID 93357865.

References

External links Roxane Maranger publications indexed by Google Scholar

Worked examples

Example 1 — a first encounter with Roxane Maranger

Start with the simplest possible case. Write down what Roxane Maranger claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Roxane Maranger before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Roxane Maranger ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Roxane Maranger

In research: Roxane Maranger appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Roxane Maranger in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Roxane Maranger is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic staff of the Université de Montréal, Living people, McGill University alumni, so understanding it makes those chapters shorter.
In everyday life: Look for Roxane Maranger outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Roxane Maranger in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Roxane Maranger means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Roxane Maranger out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Roxane Maranger in simple terms?

Why does Roxane Maranger matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Roxane Maranger?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Roxane Maranger.