Outdoor seating in urban areas plays a subtle yet significant role in shaping the microhabitats of acanthodians, small but ecologically important fish often found in city waterways. These seating arrangements, such as benches and café tables, alter local environmental conditions by affecting sunlight exposure, water runoff, and human activity patterns.

Increased shade from seating structures can reduce water temperature in nearby ponds or streams, creating cooler microhabitats favored by some acanthodian species. Conversely, seating areas may concentrate foot traffic, leading to soil compaction and altered sediment deposition in aquatic environments. The presence of outdoor seating also influences nutrient cycles, as food waste and litter from human use can introduce organic matter into acanthodian habitats.

Studies suggest that strategically placed seating can enhance biodiversity by creating varied microenvironments, while poorly planned installations may fragment habitats. Understanding these dynamics helps urban planners balance human comfort with ecological preservation, ensuring thriving acanthodian populations in city ecosystems.