Perception of impacts associated with Harmful Algal Bloom in Quellón, Chiloé: A multidimensional view

Introduction: previous studies have identified multiple impacts associated with harmful algal bloom events in coastal territories, mainly related to the risks of intoxication and economic losses. Southern Chile is no exception; however, few studies have understood this phenomenon from the perspective of coastal communities. Objective: to explore and analyze how different stakeholders from Quellón, Chiloé, Chile, perceive and have responded to the red tide, a recurrent issue in an area highly dependent of marine activities. Methods: we designed a qualitative study, using semi-structured interviews, which were applied to 36 people. Conclusions: among the main results, negative effects are recognized on people's health, the economic, social and cultural sphere of coastal communities, highlighting life experiences and knowledge associated with this phenomenon. Further than the risk of intoxication, the study allowed us to dig deeper into the health, economic and social impacts that occur in a highly isolated area. Also, the need to understand the negative consequences of the red tide as impacts chains is highlighted, proposing an integrated understanding of these events. Qualitative studies show the importance of considering the voices of local stakeholders regarding the understanding and preparation of future red tide events to build more resilient coastal communities.

• Main Author: Romero Hernández, Javier (author)
• Other Authors: Ugarte-Caviedes, Ana-María (author), Sapiains-Arrue, Rodolfo Jorge Patricio (author)
• Format: article
• Language: spa
• Published: 2025
• Subjects: Cadenas de impacto; comunidades costeras; chiloé; floraciones algales nocivas; impactos; multidimensionalidad; coastal communities; Chiloé; Harmful algae blooms; Impacts; Impact chains; multidimensional
• Online Access: https://revistas.flacsoandes.edu.ec/letrasverdes/article/view/6319