Gracilaria Mammillaris Classification Essay

How should I go about choosing my topic?

Begin by reading the explanations below.  Examples of each are provided below!

  • Division Essay: find a topic that people might tend to underestimate or over-simplify.  In other words, choose something that the average person might not know much about, and therefore can't really understand how complex or interesting that topic really is.  Your job in the essay will be to break your topic down into meaningful and important categories.

  • Classification Essay: think about the categories we place things in everyday and the characteristics of those categories.  The topic you choose should allow you to argue that something has been misplaced.

How should I organize this essay?

As you write, keep these guidelines in mind: 

  1. Your thesis statement and introduction will need to explain why these divisions/ classifications should matter to your reader.
  2. Your thesis statement and introduction MUST define or explain the category you plan to discuss (i.e. A sport is a competitive, physical activity therefore cheerleading should be considered a sport.)
  3. You should organize your body paragraphs so that each division or category has it's own paragraph or section. (i.e. cardio exercise is paragraph 1 and weightlifting is paragraph 2, etc.)

Division Essay Examples

If you want to lose weight, simply saying that you're going to "exercise" everyday may not be the most effective way to do so.  Exercising is more complex than many people realize--attaining your goals will involve understanding how different types of exercise can help you achieve your goals.   

Types of Exercise

  • cardio: burns calories and strengthens your heart (running, using an elliptical or stair-stepping machine, etc.)
  • weight lifting: tones muscles, increases physical strength, burns fat (using weights or weighted machines)
  • recreational/sports: depending on the sport, can provide both cardio and toning benefits (cycling, tennis, kayaking)

We could also narrow this topic down a bit further and write about the important differences between different types of cycling.

Types of Cycling:  stationary (exercise) biking, road biking, mountain biking, recreational biking

Classification Essay Examples

To write this type of essay, we'll need to think about things that should or should not be placed in a particular category.

Example: Batman (that's our topic!) is not a superhero (category people place him in), but is simply a local vigilante (category he belongs in).

Ask yourself: Why do I think that...?

  • Does not possess super powers (powers most humans don't possess).  
  • Chooses to be a hero, rather than being "chosen" by others/other forces.

Example: Cheerleading (That's our topic!) should be considered a sport (It belongs in the category, "sports"). 

Ask yourself: Why do I think that...?

  • cheerleaders go to "practice" and must be in good physical shape
  • cheerleaders work together toward a common goal
  • cheerleaders must "try out" for their squad and often compete against other squads

Sample Papers

Gracilaria is a genus of red algae (Rhodophyta) notable for its economic importance as an agarophyte, as well as its use as a food for humans and various species of shellfish. Various species within the genus are cultivated among Asia, South America, Africa and Oceania.


Gracilaria bursa-pastoris and Gracilaria multipartita have long been established in southern England and northwestern France, but confusion between Gracilaria gracilis and Gracilariopsis longissima, (as Gracilaria verrucosa or Gracilaria confervoides, has prevented the recognition of the northern boundaries.[1]


Gracilaria is used as a food in Japanese, Hawaiian, and Filipino cuisine.[2] In Japanese cuisine, it is called ogonori or ogo. In the Philippines, it is called gulaman and used to make gelatin.[3] In Jamaica, it is known as Irish moss.[4]Gracilariaoligosaccharides with degree of polymerization 6 prepared by agarase digestion from agar-bearing Gracilaria sp. polysaccharides have been shown to be an effective prophylactic agent during in vitro and in vivo experiments against Japanese encephalitis viral infection. The sulfated oligosaccharides from Gracilaria sp. seem to be promising candidates for further development as antiviral agents.[5]

Aquarium Trade[edit]

Gracilaria commonly appears as a macroalgae for sale in the aquarium trade. It is a highly palatable algae to tangs[6] and many other herbivorous fish, and its nutrient uptake ability makes it a suitable choice for a refugium.


Gracilaria are susceptible to infection by the parasiticoomycetePythium porphyrae.[7]


Wikimedia Commons has media related to Gracilaria.

External links[edit]

  1. ^Steentoft, M. and Farham, W.F. 1997. Northern distribution boundaries and thermal requirements of Gracilaria and Gracilariopsis (Gracilariales, Rhodophyta) in Atlantic Europe and Scandinavia. Nord. J. Bot.5: 87–93
  2. ^Kyaw, Aye, The Production of Gracilaria eduli in Burma, Report of the Training Course on Gracilaria Algae, Manila, Philippines, 1–30 April 1981, accessed 27 April 2013
  3. ^Davidson, Alan (2004). Seafood of South-East Asia: A Comprehensive Guide with Recipes. Ten Speed Press. p. 197. ISBN 978-1-58008-452-9. 
  4. ^Thomas J. Goreau; Robert Kent Trench (2013). Innovative Methods of Marine Ecosystem Restoration. CRC Press. pp. 193–. ISBN 978-1-4665-5773-4. Retrieved 30 June 2013. 
  5. ^Kazłowski B, Chiu YH, Kazłowska K, Pan CL, Wu CJ (August 2012). "Prevention of Japanese encephalitis virus infections by low-degree-polymerisation sulfated saccharides from Gracilaria sp. and Monostroma nitidum". Food Chem. 133 (3): 866–74. doi:10.1016/j.foodchem.2012.01.106. 
  6. ^Volynkin, Alex. "Growing Gracilaria Parvispora". Salt Water Reefing. Retrieved 2016-12-18.  
  7. ^Spencer, M. A. (2004). "Pythium porphyrae. (Descriptions of Fungi and Bacteria)". IMI Descriptions of Fungi and Bacteria. Wallingford, UK: CAB International. 162 (Sheet 1617). Retrieved 10 October 2017.  


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