The Oyster Table: Architecture as the Intersection Between the Tides and Cultivation
Supervisor: Ms M Strydom
Location: Gqeberha, Eastern Cape, South Africa
Programme: Oyster Farm
Keywords: Seafood-Based Bio-Economies, Aquaculture, Blue Urbanism
Abstract
At the edge between the land and sea, architecture can have the power to become a mediator between ecological forces and human ambition.
Situated offshore at the historical maritime site of the Humewood Six-Pillars Slipway in Gqeberha, Eastern Cape, the project engages in a conversation with the city’s aquaculture development plan. At a mere 2km from the site, the stakeholder, Nelson Mandela Bay Municipality, proposes a bivalve aquaculture farm. This monoculture model is export-oriented and situated far from the public eye, ensuring a visually aesthetic beachfront. However, in doing so, it foregoes interactions with the local economy, excludes public interaction with the ocean and places a strain on the city’s marine ecosystem. In contrast, The Oyster Table proposes an in-situ oyster aquaculture farm on the city’s blue edge, aiming to foster ecological diversity, stimulate the localised bio-economy and reconnect the citizens of Gqeberha with oceanic processes.
The spatial layout is centred around the life cycle of the oyster: from controlled breeding and nursery areas, semi-controlled tidal upweller systems, and finally to natural grow-out zones. Through the partial mimicking of the natural habitat of oysters, the design enhances ecological resilience by avoiding risks of monoculture aquaculture farms, such as biotoxicity and disease outbreaks. Public interaction is reinforced through the public interface between the surf area of the adjacent beach and the industrial space of the intervention, and a small café serving oysters once a week.
Regenerative practices are centred within the ecosystem itself. Shell waste from nearby restaurants and seafood consumption is brought back to the farm and prepared to act as substrate for new oyster growth. A secondary regenerative layer is explored in how surplus shell waste can be transformed into bio-based construction materials. This is exemplified in the primary structural material choice of shell-concrete composite. The material allows submerged structures to gain additional strength against tidal forces and induces bio-receptivity between the structure and marine animals.
Through this intervention, the historical slipway is reintroduced to the public realm as a civic aquascape that reconnects the public with the ocean, ultimately contributing to the Nelson Mandela Bay Municipality’s redevelopment vision.
