Chlorophyll trends are negative for lakes but positive for estuarine-coastal waters.

ABSTRACT: Nutrient (nitrogen and phosphorus) pollution is an environmental problem of global concern because overenrichment of water bodies increases phytoplankton biomass and ecosystem metabolism, depletes oxygen in bottom waters, and increases the frequency and intensity of harmful algal blooms. These responses to nutrient pollution have motivated policies to reduce anthropogenic nutrient inputs. However, these policies have not been universally implemented and their success at reducing phytoplankton biomass is confounded by other components of global change that regulate the conversion of nutrients into biomass. These regulating processes themselves are changing in the Anthropocene. Our study is an assessment of changing phytoplankton biomass over the period 2000-2019, using chlorophyll a

SUBMITTER: Cloern JE 

PROVIDER: S-EPMC12280897 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature