The ever-lasting green tides: What can we do？

Area of Science:

• Marine biology
• Environmental science
• Ecology

Background:

• Macroalgal blooms, or green tides, are increasing globally due to human activity and climate change.
• The Yellow Sea experiences recurrent, large-scale Ulva prolifera green tides annually, impacting coastal tourism and fisheries.
• Eutrophication drives macroalgal growth, but bloom dynamics are complex, necessitating targeted research for effective management.

Purpose of the Study:

• To investigate the complex dynamics of large-scale macroalgal blooms.
• To identify effective strategies for the prevention, control, and mitigation of green tides.
• To explore methods for the beneficial utilization of harvested algal biomass.

Main Methods:

• Review of existing research on macroalgal bloom causes and impacts.
• Analysis of the ecological and environmental factors contributing to green tide formation.
• Evaluation of current and potential mitigation and biomass utilization techniques.

Main Results:

• Green tides pose significant threats to coastal ecosystems and economies.
• Effective control requires integrated strategies, including pollution reduction and early intervention.
• Biorefining and bioconversion offer pathways for sustainable use of algal biomass.

Conclusions:

• Urgent need for early-stage prevention and control of macroalgal blooms.
• Governmental coordination is essential for managing trans-regional phenomena.
• Sustainable utilization of green tide biomass is key to mitigating negative impacts.