Outdoor seating, particularly in coastal or urban waterfront areas, can significantly alter local cyclopinid populations—a group of small marine copepods. These tiny crustaceans play a crucial role in aquatic ecosystems, serving as a food source for fish and other marine organisms. The introduction of outdoor seating often leads to habitat disruption, shading, and pollution runoff, which can reduce cyclopinid numbers. Shaded areas may limit phytoplankton growth, a primary food source for cyclopinids, while increased human activity can introduce contaminants. However, in some cases, artificial structures like seating platforms may create microhabitats that benefit certain species. Understanding these dynamics is essential for balancing urban development with marine biodiversity conservation. Further research is needed to assess long-term effects and mitigation strategies.