
Harmful Algae, Journal Year: 2024, Volume and Issue: 140, P. 102757 - 102757
Published: Nov. 10, 2024
Despite the global expansion of cyanobacterial harmful algal blooms (cHABs), research is biased to temperate systems within north, such as Laurentian Great Lakes. This lack diversity represents a significant gap in field and jeopardizes health those who reside along at-risk watersheds south. The African Lake, Lake Victoria, understudied despite serving second largest lake by surface area demonstrating year-round cHABs. Here, we address this knowledge performing molecular survey cHAB communities three anthropogenically ecologically important freshwater Victoria's Kenyan watershed: Winam Gulf (Lake Victoria), Simbi Naivasha. We identified bloom non-toxic Dolichospermum toxic Microcystis Gulf, with data suggesting sulfur limitation shapes competition dynamics between these two bloom-formers. Though did not detect Naivasha, it contained genera amongst lakes. In turn, our results indicated methane metabolism may allow picoplankton outcompete genera, while Synechococcus spp. serves source sink system. exhibited Limnospira at time sampling very low abundances present. Subsequently, were employed design screening risk assessment framework for local stakeholders. Cumulatively, work increase efforts on international scale an impetus monitoring scale.
Language: Английский