Transition to Agroecological Practices: Positive Effects on Streams and Biofilms

• DOI: 10.1002/iroh.70001
• Publication Date: 2025-02-23T12:54:01Z
• Authors: Micaela A. Mujica; Eduardo De Gerónimo; María Mercedes Ni...; Maria Agostina Pe...; Juan Martin Pared...; Agustin Mosca; Silvia L. Fanelli; Roberto Jensen; Tomas Cordero; Ariel H. Paracampo; Joaquin Cochero
• Keywords: Agroecology

ABSTRACT Transformations in agricultural practices, particularly regarding chemical inputs such as pesticides, affect physical and characteristics biotic communities of streams. Currently, many conventional production systems are transitioning to economically environmentally more sustainable production, which aims reduce the use synthetic inputs. However, it remains unclear whether agroecological practices positively impact environment. Here, we compared toxicity sediments from streams areas transition horticultural well reference areas. Additionally, effects on stream biofilms were assessed 7‐day bioassays, measuring chlorophyll‐a, extracellular polymeric substance concentrations, ash‐free dry weight, diatom motility. In with horticulture, pesticides frequent had higher concentrations than horticulture. This was reflected biofilms, lower algal biomass cell motility under Our study suggested that even early stages, positive aquatic ecosystems, found similarities pesticide biological between sites horticulture less‐impact sites, for example, grasslands sites. reports integrates a complex mixture contaminants used intensive providing realistic assessment their environmental consequences.