The video explores the role of jellyfish in marine ecosystems, highlighting their composition, nutritional value, and impact on food webs. Despite being 95% water, jellyfish provide essential nutrients to predators like sea turtles. However, jellyfish blooms can disrupt ecosystems by sequestering nutrients. Advanced tools like stable isotope analysis reveal jellyfish's significant role in food webs. The video concludes with the importance of understanding jellyfish for conservation efforts amid climate change.

Why are some sea turtles able to survive on a diet primarily consisting of jellyfish?

• Sea turtles only eat jellyfish when other food is scarce.

• Jellyfish provide essential nutrients and are easy to catch.

• Sea turtles have a special enzyme to digest jellyfish.

• Jellyfish are rich in protein.

What is a potential ecological problem caused by jellyfish blooms?

• They increase the water temperature.

• They sequester nutrients, affecting other species.

• They decrease the oxygen levels in water.

• They attract more predators to the area.

How do scientists study the role of jellyfish in marine food webs?

• By measuring their growth rates.

• By tracking their migration patterns.

• By using stable isotope analysis.

• By observing their behavior in aquariums.

Which animals have been found to opportunistically consume jellyfish?

• Only herbivorous animals.

• Various animals, including some birds and fish.

• Only deep-sea creatures.

• Only sea turtles.

What happens to jellyfish populations when conditions return to normal after a bloom?

• They form new colonies.

• They reproduce rapidly.

• They become a food source for deep-sea animals.

• They migrate to colder waters.

How do lobster larvae manage to consume jellyfish safely?

• They have a special enzyme to neutralize toxins.

• They avoid the stinging parts.

• They only eat dead jellyfish.

• They have adaptations to disarm jellyfish stings.

Why is it important to understand the role of jellyfish in marine ecosystems?

• To develop new marine species.

• To monitor changes in ocean temperature and marine populations.

• To improve fishing techniques.

• To increase jellyfish populations.