Enric Sala: Glimpses of a pristine ocean

The video discusses the degradation of marine ecosystems and the importance of resetting baselines to understand what is natural. It highlights the role of marine protected areas in restoring biodiversity and resilience, and the economic benefits they can bring. The speaker emphasizes the need for global awareness, better governance, and sustainable business models to expand marine conservation efforts.

What is the baseline concept introduced in the context of marine ecosystems?

• The current state of an ecosystem

• The original state of an ecosystem before human impact

• The future potential of an ecosystem

• The economic value of an ecosystem

What is the significance of the inverted biomass pyramid in pristine reefs?

• It indicates a balanced ecosystem with equal numbers of all species

• It shows a higher number of herbivores than predators

• It suggests that there are no predators in the ecosystem

• It reveals that predators make up most of the biomass

How do intact food webs contribute to the resilience of coral reefs?

• They increase the number of herbivores

• They enhance the ecosystem's ability to recover from warming events

• They prevent algae from growing

• They reduce the number of predators

What is one of the main benefits of marine reserves?

• They eliminate all predators

• They decrease the size of fish

• They reduce the number of species

• They increase biomass and species diversity

What economic benefit does the Medes Islands Marine Reserve provide?

• It reduces tourism revenue

• It generates 6 million euros for the local economy

• It increases fishing activities

• It decreases the number of fish

How can marine reserves benefit local fishermen?

• By reducing the number of fish available

• By decreasing fish size

• By increasing fish abundance outside the reserve

• By eliminating fishing activities

What is a major challenge in creating more marine reserves?

• Overabundance of marine life

• Excessive funding from governments

• Too many existing reserves

• Lack of awareness about their benefits

What governance change is suggested to improve marine conservation efforts?

• Centralize all conservation efforts

• Decentralize efforts to empower local communities

• Rely solely on NGOs for conservation

• Eliminate all government involvement

What is a proposed solution to the funding issue for marine reserves?

• Focus only on large, uninhabited areas

• Reduce the number of reserves

• Develop business models that view conservation as an investment

• Increase reliance on philanthropic donations

What is the estimated cost to create a network of protected areas covering 20% of the ocean?

• 35 billion dollars

• 16 billion dollars

• 50 billion dollars

• 100 billion dollars