Redefining Aquariums: Less Is More in the Fight for Sustainability

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As with most things, aquarium design has evolved and modernized with the introduction of new technologies and trends. For example, aquariums began to transform the visitor experience model from passive observation to more immersive environments in the 1960s. The impetus for this shift was CambridgeSeven’s groundbreaking introduction of a more immersive aquatic experience at Boston’s New England Aquarium in 1962, which soon became the standard for aquarium design for the next 60 years.

Today, that immersive concept is being expanded to help institutions tell more nuanced stories by making their conservation and sustainability actions the theme of their exhibits and vital components of their architecture.

Less Carbon Emissions

 The most important aspect of the modern Sustainable Aquarium is designing and building facilities that reduce or eliminate carbon emissions by specifying electric-only building systems and equipment. Integrating Net Zero Energy strategies into concept design is fundamental as this will embed energy saving into the fabric of the facility. Net Zero concepts can generate massing, component detailing, and material specification that will meet new performance criteria. Exploring opportunities to reduce and limit embodied carbon in the construction of new facilities should be a high priority.

Sustainability

The term “sustainability” can have broad meaning; in the aquarium context, we mean:

  • Reduction of on-site energy consumption through system and building design as well as operational sustainable maintenance practices
  • Implementation of strategies to conserve potable water
  • Conservation policy advocacy to repair, protect and expand natural ecosystems and habitats for animals and plants
  • Acquisition processes in place to maintain the animal collection while preserving animals in their wild habitats

An aquarium’s work on these four topics is of great interest to the public and could be transformative by educating visitors about climate change reversal, habitat preservation through mandated protection of ocean ecosystems, and work supporting animal life in the wild through legislation that protects certain species. Increasingly, we are working with clients to showcase these initiatives in hopes of encouraging the public to take action in their own lives.

Energy Usage Intensity

In the U.S., current incentives are in place to hasten adoption of widespread electrification. One metric we use to measure this progress is Energy Usage Intensity (EUI). This index sets a baseline of accepted usage for building types. While the EUI for Sustainable Aquariums is in development, the importance of setting standards is not in doubt. Our goal should be to improve Aquarium EUI by a minimum of 30% by:

  • Improving LSS Systems with variable speed pumps & heat recovery
  • Switching to LED lighting systems throughout the aquarium
  • Introducing sub metering of mechanical systems that are integrated into building management software (BMS)
  • Providing on-site renewable energy
  • Seawater heat exchange

Reducing energy consumption and transitioning away from fossil fuel by introducing heat pumps to cool and heat water for both HVAC and LSS, will slow and then reverse global warming and habitat degradation. Demonstrating an aquarium’s role in this process is not only an ethical imperative, but also connects institutional action with visitor education.

Less Water Usage

A critical goal for the Sustainable Aquarium is the reduction in potable water usage as supplies are under threat from climate change. Reduction is dependent on updating Standard Operating Procedures (SOPs) around Life Support Systems (LSS) filter cleaning via more efficient back-washing techniques, denitrification that reduces the need for adding replacement water to close looped seawater systems and replacing inefficient and outdated equipment that leaks and loses water to evaporation.

Conservation

Conservation of animals in wild habitats is critical. Past practices of taking aquatic life from their homes is no longer sustainable and will contribute to species extinction. In the Sustainable Aquarium, new husbandry techniques breed animals on site to protect species in the wild. They are also leading with the rescue and rehabilitation of injured wildlife and educating the public by exhibiting this formerly behind-the-scenes work. Advanced media technology can be deployed to showcase animals in the wild without disrupting ecosystems; increasingly, our clients are incorporating simulated ecosystems, such as virtual shark tanks, that immerse and delight visitors.

Less is More

The 21st century zeitgeist to Reduce, Reuse, Recycle are essential and achievable goals. Our task is to implement them in a manner that is not only institutionally prudent, but also transcendent – pushing beyond management practices by leading sustainability campaigns through eliminating fossil fuel usage and inspiring proactive sustainable leadership.

A sustainable aquarium visit will not be limited to seeing fantastic creatures in ocean settings, but will educate about action that is changing the world. Where the 20th century aquarium focused on suspending belief and creating an alternative aquatic reality, the 21st century aquarium will focus on our role in preserving the aquatic biosphere. 


Adam Mitchell, AIA, LEED AP BD+C, is a Principal at CambridgeSeven, a renowned architecture and design firm based in Cambridge, MA. An educator at heart, Adam manages the firm’s lab and aquatics work – from universities and research facilities to aquariums. With a deep appreciation for the science housed within, Adam skillfully integrates the necessary complexity of tanks, lab benches and clean rooms with the overall design intent to create memorable and highly functional spaces. Adam also serves as a long-time design instructor and mentor to Boston Architectural College students.

Environment + Energy Leader