ORCID

Document Type

Article

Abstract

This study significantly advances previous attempts to model cold-water coral growth using Smoothed Particle Hydrodynamics (SPH) by incorporating the finite nature of food availability, an important parameter in coral development. Building on the Goldilocks Principle, which states that coral polyps must surpass an energetic survival threshold to prosper, this model integrates food-based growth dynamics. The underlying SPH framework simulated fluid-coral interactions in which growth was promoted in optimal flow conditions and food-rich zones. Key innovations include dynamic energy reserves, where the energetic reserves of coral particles depend on food obtained from the surrounding fluid particles. Simulations reveal that higher food availability leads to larger, faster-growing colonies, although individual polyps tend to have shorter lifespans due to increased competition. The model highlights how colony expansion and resource competition influence long-term survival. These findings emphasise the importance of food availability in shaping coral morphology and resilience, providing a foundation for future studies on coral ecosystem responses to environmental stressors like ocean acidification. By bridging hydrodynamic and energetic constraints, this work offers a more holistic understanding of cold-water coral growth dynamics.

Publication Date

2026-09-08

Publication Title

Ecological Modelling

Volume

522

ISSN

0304-3800

Acceptance Date

2026-09-04

Deposit Date

2026-09-11

Funding

This work was supported by a Natural Environment Research Council (NERC) Doctoral Training Partnership (grant no NE/L002558/1) to KG, and Operation Wallacea. This work was supported by the Independent Research Fellowship from the Natural Environment Research Council (NERC) to SH (NE/K009028/1 and NE/K009028/2).

Keywords

Desmophyllum pertusum, SPH, Coral growth dynamics, Goldilocks Principle, Cold-water corals

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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