Deciphering Abalone




While the term "mother of pearl" is known to many, not many are aware of what it constitutes or is derived from. 'Mother of pearl' in jewelry is the organic composite material nacre that coats the inside layer of some mollusk shells, including abalone. It is the same material that forms pearls. Abalone shell became popular with jewelers in the 1960s and 1970s as a byproduct of new abalone farms that had been created to satiate the growing demand for the shellfish in culinary circles around the world. Since its discovery, it has been over-harvested and exploited for its meat and shell. The value of an abalone is determined by its age, which is in turn determined by the number of growth rings in its shell.

Abalone are incredibly difficult and dangerous to harvest, traditionally requiring divers to swim down to the ocean floor and pluck them off of the seabed. It should be noted that there have been multiple successful commerical abalone farms established as a result of high demand and overfishing, and this has helped wild populations begin to grow back somewhat, although many species are still considered endangered by many world governments. The process of aging them is also no small task, requiring the shell be cut through the cone, stained, and looked at under a microscope to count the number of rings. As the price of abalone is determined by its age, it would be very convienent if there was a reliable way to determine the age of a specimen (or many) without having to go through this laborious task every time.

We aim to use several supervised machine learning algorithms to see if we can predict which abalone are ideal for harvesting so that farmers can estimate how much they will be able to make from a particular specimen, and so that scientists who want to do population studies on species of abalone do not have to go through the tedium of breaking each specimen open, staining, and looking at it under a microscope.