Multiple Evidence for Climate Patterns Influencing Ecosystem Productivity across Spatial Gradients in the Venice Lagoon

Effects of climatic changes in transitional ecosystems are often not linear, with some areas likely experiencing faster or more intense responses, which something important to consider the perspective climate forecasting. In this study Venice lagoon, time series past decade were used, and primary productivity was estimated from hourly oxygen data using a published model. Temporal spatial patterns water temperature, salinity identified by applying clustering analysis. Phytoplankton nutrient long-term surveys correlated model outputs. pmax, maximum production rate given day, found positively correlate plankton variables measured surveys. Clustering analysis showed occurrence summer heatwaves 2008, 2013, 2015 2018 three warm prolonged summers (2012, 2017, 2019) coincided lower pmax values. Spatial effects terms temperature segregation between confined open areas, although varied year year. Production respiration differences that despite seasonality, overall heterotrophic, internal bodies having greater values heterotrophy. Warm, dry years high had degrees autotrophy.