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PEARL's FINAL HOURS
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Patient #001882: Jam, Pearl
Height: 5.7 in
Eye Color: N/A
Weight: 5 oz
Ethnicity: Mollusk
Biography: Oysters are keystone species, which means that they provide habitat for several other marine species. Oysters can be found in several bays and estuaries throughout the world. The most populated sites in the US are Chesapeake Bay and Wilapa Bay in Washington, but oysters can also be found in abundance in Japan, Australia, and China. Oysters get their energy by consuming nitrogen-containing compounds (nitrates and ammonia), phosphates, plankton, detritus, bacteria, and dissolved organic matter, removing them from the water. You might be surprised to hear that oysters actually have gills, and draw water through the beating of their cilia. They can also exchange gases across their mantles, which are lined with several thin, small blood vessels. A fun fact: not all oysters contain a pearl. In fact, pearl oysters, the only species of oyster that produces a pearl, are more closely related to mussels compared to the rest of the oyster species.
REFER TO THE INFORMATIONAL DISSECTION VIDEO AT THE BOTTOM IF KNOWING HOW TO DISSECT THIS ORGANISM IS DESIRED. THE VIDEO CONTAINS A DETAILED VISUAL AND VOICEOVER.
EXTERIOR
Hinge: lets the oyster open the valves
Umbo: oldest part of the shell
Postules: other organisms living in symbiosis with the oyster
Growth rings: like a tree, shows the growth of the oyster
INTERIOR
Heart: pumps blood throughout the body
Anus: used in waste excretion
Gills: main respiratory organ
Incurrent/current sexiphon: moves water and other materials in and out if the valves
Mantle: keeps the oyster planted on the valves
Intestine: transports food materials
Digestive gland: creates digestives enzymes for food
INFORMATIONAL DISSECTION VIDEO BELOW
Works Cited
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