A shell midden is a collection of shells and other refuse distributed by historic populations. They were constructed purposefully or accidentally by a community over varying periods of time. Their discovery by archeologists yields valuable clues about how a society lived. The size of a midden may have indicated the size of the population that contributed to it, or the length of time they lived there. Middens often contain other waste, like fish bones, or animal DNA, which can give researchers hints about the diets of their creators. Middens also help archeologists in another way: when shells weather, they help buffer acidic soils which can preserve archeologically important organic material in the soil. Archeological evidence suggests that shells at the bottom of shell middens were on average larger than shells on top, leading some researchers to believe that oysters have been consistently overharvested by different human populations. Today, shell middens continue to be culturally significant to Native American tribes and offer a way for tribes that have been separated from the ancestral homeland to reconnect with their land and ancestors. 

 

The importance of shellfish for the Mid-Atlantic doesn’t stop with Native Americans though. Dutch settlers in New Amsterdam (New York City) were voracious consumers of the abundant oysters surrounding the early city. In fact, there were whispers of foot-long oysters in Dutch literature during this time period. When the British came knocking on the doorstep of the Dutch colony of New Amsterdam, New Yorkers welcomed their new rulers renaming New Amsterdam to New York City. 

As New York City flourished throughout the colonial and independence periods, oysters formed a unique place in the palate of New Yorkers. They were respected as the peak of fine dining and served to the richest of the city’s residents while also providing food for the city’s destitute. At that time, New York’s oyster reefs weren’t suffocating from pollution, and were able to support hordes of hungry people rowing out to beds and harvesting their meals using tongs. They were a staple food for many, and could be gathered freely by a single person, or bought cheaply from any number of street vendors. The plentiful oyster beds employed thousands of people and were world-renowned with nobles in Paris and London squawking over the dominance of a New York oyster.

 

More importantly, oysters provided for the successful careers and livelihoods of countless immigrants and free Black citizens. These groups arrived in a city of extreme prejudice but were still able to support themselves thanks to the industrious oyster. Take Thomas Downing as an example. Born to formerly enslaved people, he moved to New York and opened Downing’s Oyster House in 1825. It was considered one of the first fine dining establishments in the new United States and was a favorite of the New York elite. Downing was hailed as a culinary legend, but there was another side to his story. He leveraged his success in the restaurant business to ferry enslaved Black people on the Underground Railroad. Using the profits from his business, he built a pivotal station along the network to ferry black people to true freedom in Canada.

The oyster’s place as a cheap food for the masses, and as a staple of fine dining cements its place as a uniquely unifying food within the shining new American democratic republic. Sadly, this status would not last; Advances in harvesting technology led to faltering oyster populations. 

Natural History Society of Northumbria (2026). The Wild Oysters Project. [Video]. YouTube.

Traditional and sustainable harvesting techniques like using long metal tongs were slowly phased out for more unsustainable dredging which harvested oysters by dragging a metal bar along the seafloor with a net attached to capture all the oysters collected. New Jersey’s official tall ship, the AJ Meerwald, collected its oysters using the dredge method. Sailing ships were limited in speed and restricted in their ability to sail in stormy or dead seas. Newer steamships allowed oysters to be harvested continuously, without regard to weather or wind. Oysters create their own biogenic habitat by growing on top of one another. When an area is completely cleared of oysters, as dredging does, oyster populations struggle to recover, in the same way that clear cutting a forest decimates an ecosystem.

Eventually, the relentless consumption of New York’s oyster beds outstripped nature’s ability to replenish them. Unregulated industry and residential hydrologic contaminants made it impossible for the creature to breathe and eat. Natural beds were deemed unsafe to eat and closed by public health officials. Once covering over 220,000 acres (about the area of Austin, Texas), New York’s once abundant oyster beds have fallen barren. Oysters exist in the New York area today; they are still deemed unsafe for consumption.