Environmental Studies and Forestry

Combined Earth observations reveal the sequence of conditions leading to a large algal bloom in Lake Geneva

A. I. Rahaghi, D. Odermatt, et al.

Discover how freshwater algae can unexpectedly thrive in lakes, as researchers including Abolfazl Irani Rahaghi and Daniel Odermatt uncover the triggers behind a massive *Uroglena* bloom in Lake Geneva. This study reveals the intricate interplay between weather patterns and algal dynamics in meso-oligotrophic lakes.

00:00

Playback language: English

Index

Abstract

Freshwater algae exhibit complex dynamics, particularly in meso-oligotrophic lakes with sudden and dramatic increases in algal biomass following long periods of low background concentration. This paper examines a massive *Uroglena* bloom in Lake Geneva, showing that a specific sequence of meteorological conditions triggered it: heavy rainfall increasing organic matter and nutrient loading, followed by wind-induced coastal upwelling, and a prolonged period of warm, calm weather. A multidisciplinary approach combining satellite remote sensing, in-situ measurements, biogeochemical analyses, and 3D modeling revealed the complex dynamics and the significant role of littoral-pelagic connectivity.

Publisher

Communications Earth & Environment

Published On

May 01, 2024

Authors

Abolfazl Irani Rahaghi, Daniel Odermatt, Orlane Anneville, Oscar Sepúlveda Steiner, Rafael Sebastian Reiss, Marina Amadori, Marco Toffolon, Stéphan Jacquet, Tristan Harmel, Mortimer Werther, Frédéric Soulignac, Etienne Dambrine, Didier Jézéquel, Christine Hatté, Viet Tran-Khac, Serena Rasconi, Frédéric Rimet, Damien Bouffard

Related Publications

Explore these studies to deepen your understanding of the subject.

Education

Developing a BOPPPS (Bridge-in, Objectives, Pre-assessment, Participatory Learning, Post-assessment and Summary) model combined with the OBE (Outcome Based Education) concept to improve the teaching outcomes of higher education

Z. Xu, L. Ge, et al.

Health and Fitness

Air pollution and meteorological conditions significantly contribute to the worsening of allergic conjunctivitis: a regional 20-city, 5-year study in Northeast China

C. Lu, J. Fu, et al.

Humanities

Walking in the shoes of others through brain-to-brain interfaces: a phenomenological approach to the generation of a collective living body

N. Liberati and D. Mykhailov

Social Work

Evaluating the effectiveness of the Kidogo model in empowering women and strengthening their capacities to engage in paid labor opportunities through the provision of quality childcare: a study protocol for an exploratory study in Nakuru County, Kenya

K. Okelo, M. Nampijja, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny