Implementation of a risk management protocol due to the presence of toxic cyanobacteria in the San Blas lagoon, Camagüey, Cuba
Abstract
Toxic cyanobacteria blooms are an increasingly common global problem due
to eutrophication, the effects of climate change and increased surveillance
efforts in aquatic ecosystems. In Cuba, several ecosystems have been
analyzed in the eastern region, demonstrating that this risk occurs to surface
and inland waters, due to climatic conditions, mainly in small ecosystems
with great human pressures. However, other areas are still unexplored. The
objective of this work was to implement a risk management protocol in the
San Blas Lagoon, Camaguey, due to the presence of toxic cyanobacteria in
the ecosystem, following a community report, with the death of domestic and
wild animals; unpleasant odors and dermatological symptoms in humans. A
management protocol and community actions were implemented to minimize
the impact of toxic cyanobacteria. In this small eutrophic reservoir, the
presence of a mixed bloom of toxigenic cyanobacteria was confirmed, being
Spherospermopsis torques-reginae the majority, as well as other nine
species associated with the production of microcystins, anatoxins and/or
cylindrospermopsins were identified. Strategic actions were implemented to
contain the risk situation, with the participation of the community and experts,
led by the Camagüey Criminalistics Laboratory
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