Exploring Coral Reef Ecosystems Through Simulation

Coral Growth & Calcification

The foundation of any coral reef is the process of calcification. Corals secrete calcium carbonate (CaCO3) to build their skeletons. This process is influenced by factors like water temperature and nutrient availability.

Our simulation incorporates a simplified model for biomineralization, where corals extract dissolved inorganic carbon from seawater and deposit it as calcium carbonate. The rate of calcification directly impacts coral growth and reef structure.

CaCO3(s) + H2O(l) → Ca2+(aq) + CO32-(aq)

Symbiosis & Biodiversity

Coral reefs are defined by complex symbiotic relationships. Zooxanthellae, algae that live within the coral tissue, provide energy through photosynthesis, while corals offer protection and nutrients.

The simulation allows users to adjust zooxanthellae density and photosynthetic efficiency, observing how this impacts coral health and overall reef biodiversity – a measure of species richness and abundance.

Environmental Stressors

Rising sea temperatures are a primary driver of coral bleaching. This occurs when corals expel their zooxanthellae, leading to starvation and potential mortality.

The simulator allows users to introduce temperature increases and assess the resulting stress on the reef ecosystem. Changes in pH levels and ocean acidification can also be modeled.

ΔT = T_final - T_initial

Reef Resilience & Intervention

The simulation enables users to test interventions designed to enhance reef resilience, such as shading or nutrient reduction.

Users can explore the effectiveness of various strategies in mitigating the impacts of climate change and other stressors. Modeling coral propagation techniques is also possible.

Frequently asked questions

Try it live

Everything above runs in your browser — open Reef Innovation Exchange and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.