Jellyfish and Sea Turtles: Ocean Dynamics

Jellyfish populations are increasing globally, causing ecological disruptions. Sea turtles, particularly leatherbacks, are key predators of jellyfish, consuming large quantities despite jellyfish's low nutritional value. Human activities, such as pollution and climate change, exacerbate jellyfish blooms. Protecting sea turtles from fishing threats is crucial to maintaining ecological balance.

What incident involving jellyfish occurred in Sweden?

• A swimming competition was canceled.

• A fishing boat was capsized.

• A beach was closed due to jellyfish stings.

• A nuclear reactor was shut down.

Which sea turtle species is known for consuming the most jellyfish?

• Green sea turtle

• Hawksbill turtle

• Leatherback turtle

• Loggerhead turtle

How do leatherback turtles consume jellyfish?

• They avoid the venomous parts.

• They consume jellyfish whole.

• They eat only the tentacles.

• They eat only the bell.

What adaptation helps sea turtles resist jellyfish stings?

• Camouflage skin

• Thick scales covered in keratin

• Sharp beaks

• Fast swimming speed

How do jellyfish reproduce?

• Both sexually and asexually

• Only sexually

• By budding

• Only asexually

What human activity contributes to more frequent jellyfish blooms?

• Urbanization

• Deforestation

• Fertilizer runoff

• Overfishing

What is one major threat to sea turtles from fishing practices?

• Destruction of nesting sites

• Capture in gillnets

• Pollution from fishing boats

• Overfishing of their prey

What solution has been developed to help sea turtles avoid fishing gear?

• Using sound deterrents

• Fishing at night

• Attaching green LED lights to gillnets

• Using larger nets

What is the potential consequence of current fishing practices in the Eastern Pacific?

• Extinction of leatherback turtles

• Pollution of ocean waters

• Increase in jellyfish population

• Decline in fish stocks

How can small-scale fishers minimize their impact on sea turtles?

• By fishing in deeper waters

• By reducing fishing hours

• By using larger boats

• By using LED lights on nets