Restoration, conservation and phytoplankton hysteresis

Area of Science:

• Aquatic Ecology
• Biogeochemistry
• Phytoplankton Ecophysiology

Background:

• Phytoplankton growth is regulated by external factors (temperature) and self-influenced factors (light, macronutrients like carbon, nitrogen, phosphorus, silicate).
• Phytoplankton modify their environment, leading to habitat creation and influencing community resistance and resilience to changes, such as altered nutrient inputs.

Purpose of the Study:

• To review the role of phytoplankton ecophysiology in biogeochemical hysteresis.
• To explore the impact of phytoplankton physiological responses on community composition during management, conservation, or remediation efforts.

Main Methods:

• Literature review focusing on phytoplankton ecophysiology and its link to biogeochemical processes.
• Analysis of how nutrient inputs, temperature, light, and nutrient recycling affect phytoplankton communities.

Main Results:

• Established phytoplankton communities exhibit resilience due to their habitat-modifying capabilities.
• Physiological responses of phytoplankton taxa to environmental changes are critical in predicting bloom dynamics and community structure.

Conclusions:

• Phytoplankton ecophysiology significantly contributes to biogeochemical hysteresis.
• Management strategies for aquatic ecosystems must consider phytoplankton's physiological adaptations for effective conservation and remediation.