Seasonal Variation in Seagrass Epiphyte Communities and their Contribution to Coastal Primary Productivity

Seagrass ecosystems are significant coastal ecosystems where biodiversity, nutrient cycles, carbon sequestration, and primary production processes are carried out. Epiphytic communities living on seagrass leaves play a significant role in photosynthesis and ecological interactions in seagrass ecosystems. The biomass and productivity of epiphytic communities are influenced by seasonal changes in temperature, nutrients, penetration of light through water, and biological interactions. In the current study, seasonal variation in seagrass epiphytes is studied, and their contribution to coastal primary productivity is evaluated using simulation-based research method. Four seasons, namely pre-monsoon, monsoon, post-monsoon, and winter, were taken into consideration to study seasonal changes in environmental factors, biomass of epiphytes, and primary productivity. A simulated data set of 120 samples was constructed based on predetermined seasonal factors and variability of ecological factors. Mathematical models have been used to determine the biomass density, photosynthetic productivity, and relative importance of epiphytes in the overall ecosystem productivity. The simulations show that the biomass and productivity of the epiphytes are not consistent throughout the year; the post-monsoon season shows the greatest biomass and photosynthetic productivity. Availability of nutrients and underwater lighting influence the development of epiphytes, while environmental suitability influences their productivity dynamics. This leads to the creation of a mathematical base that explains the significance of epiphytes in relation to seagrasses ecologically and serves as a foundation for further research on coastal ecosystems productivity.