It is obvious that the efficiency of extracts depends on many factors and cannot be
taken as a universal tool to be applied in all aquatic ecosystems affected by the development
of algae or cyanobacteria. It is difficult to imagine that plant extracts will replace industrial
algicides used in reservoirs or dams, but they could be an alternative method for small lakes,
ponds, or aquaria. Moreover, determination of effective compounds from C. majus could
lead to the development of synthetic analogs which may result in more effective utilization.
Further studies should focus on QBA to identify the substances that are responsible for their
toxicity to phytoplankton species. Effects of the plant extracts against other non-target
organisms, such as bacteria, fish, and other zooplankton species should be also tested to
detect potential impacts on aquatic ecosystems. In general, this approach could provide
environmentally safe alternatives to chemical compounds used in water management for the
control of noxious phytoplankton.
It is obvious that the efficiency of extracts depends on many factors and cannot be
taken as a universal tool to be applied in all aquatic ecosystems affected by the development
of algae or cyanobacteria. It is difficult to imagine that plant extracts will replace industrial
algicides used in reservoirs or dams, but they could be an alternative method for small lakes,
ponds, or aquaria. Moreover, determination of effective compounds from C. majus could
lead to the development of synthetic analogs which may result in more effective utilization.
Further studies should focus on QBA to identify the substances that are responsible for their
toxicity to phytoplankton species. Effects of the plant extracts against other non-target
organisms, such as bacteria, fish, and other zooplankton species should be also tested to
detect potential impacts on aquatic ecosystems. In general, this approach could provide
environmentally safe alternatives to chemical compounds used in water management for the
control of noxious phytoplankton.
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