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Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases
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Cultivated microalgae spills: hard to predict/easier to mitigate risks.

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Large-scale algae cultivation risks ecosystem spills. Current analyses overlook non-native wild type algae, unlike native transgenic strains, necessitating new risk assessments for environmental safety.

Keywords:
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Area of Science:

  • Environmental science
  • Ecotoxicology
  • Risk assessment

Background:

  • Large-scale algae cultivation poses risks of spills into natural ecosystems.
  • Existing risk analyses predominantly focus on transgenic algae, neglecting the ecological impact of non-transgenic wild type species.
  • The 'paradox of the plankton' highlights the limitations of laboratory studies in predicting the ecological success of introduced non-native algae.

Purpose of the Study:

  • To address the oversight in risk assessments concerning non-native wild type algae.
  • To propose strategies for minimizing the ecological risks associated with algae cultivation spills.
  • To evaluate the suitability of genetic modification for enhancing the safety of cultivated algae.

Main Methods:

  • Review of existing risk assessment methodologies for cultivated algae.
  • Analysis of ecological principles, including the 'paradox of the plankton', relevant to introduced species.
  • Exploration of genetic modification strategies, specifically gene deletion, for risk mitigation.

Main Results:

  • Non-native wild type algae present unique risk assessment challenges compared to native transgenic strains.
  • Laboratory and modeling approaches are insufficient for predicting the ecological impact of introduced algae.
  • Deleting non-essential genes that are crucial for survival in natural environments can reduce risks from cultivated algae spills.

Conclusions:

  • Risk assessments for algae cultivation must comprehensively include non-native wild type species.
  • Ecological unpredictability necessitates proactive safety measures in algae cultivation.
  • Targeted genetic modification, such as gene deletion, offers a viable strategy to minimize the environmental risks of algae cultivation.